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外研版（2024）八年级英语下册 Unit 5 Looking into nature
单元基础必考滚动练
学校：______________ 班级：______________ 姓名：______________
【资料亮点】
同步单元考点，题型贴合考试，夯实基础重难点。
7天阶梯训练，由易到难，每天一练提升快。
题量标准好打印，可直接当作业，带完整解析。
Day 1 · 基础夯实
一、阅读理解（5小题，每题2分，共10分）
建议用时：8分钟 | 实际用时：____分钟 | 得分：____/10
答题要求：阅读短文，从每题所给A、B、C、D四个选项中选出最佳选项。
Nature is full of amazing wonders. Every living thing has special skills to survive in its environment.
Chameleons are famous for changing their skin color. They do this to hide from enemies and communicate with other chameleons. Their color can change depending on the temperature, light and even their mood.
Mimosa pudica, also called the sensitive plant, closes its leaves when touched. This is a way to protect itself from being eaten by animals. After a few minutes, the leaves will open again slowly.
Bats use echolocation to find food and avoid obstacles. They send out high-frequency sounds that bounce off objects. By listening to the echoes, bats can know exactly where things are, even in complete darkness.
Bees dance to tell other bees where to find food. A special “waggle dance” tells the direction and distance of flowers with nectar. This helps the whole hive work together efficiently.
( )1．Why do chameleons change their skin color
A．To attract friends. B．To hide from enemies and communicate.
C．To keep warm. D．To find food.
( )2．What does Mimosa pudica do when touched
A．It grows faster. B．It closes its leaves.
C．It changes color. D．It makes a sound.
( )3．How do bats find food in the dark
A．By using echolocation. B．By using their strong eyes.
C．By smelling food. D．By following other animals.
( )4．What do bees use the “waggle dance” for
A．To warn of danger. B．To show how to build hives.
C．To tell where food is. D．To play with each other.
( )5．What’s the main idea of the passage
A．How to protect nature.B．Animals are our friends.
C．Nature has amazing living things with special skills.D．Famous natural wonders around the world.
二、完形填空（15小题，每题1分，共15分）
建议用时：12分钟 | 实际用时：____分钟 | 得分：____/15
答题要求：阅读短文，从每题所给A、B、C、D四个选项中选出可以填入空白处的最佳选项。
There are four seasons in Beijing. They are spring, summer, autumn and winter. Spring in Beijing comes in early April and 1 till the end of May. The temperature 2 in spring, but there is a big difference in temperature between the day and the night. Do wear 3 clothes while enjoying outdoor nightlife.
Summer in Beijing is from early June to mid-September. It’s very hot and you 4 light clothes as the temperature in July and August is between 30℃ and 40℃. Remember to bring a(n) 5 with you because there’s much rain.
The short but beautiful autumn from mid-September to the end of October is the best season for 6 in Beijing. Autumn in Beijing is cool and comfortable. From late October, the temperature drops 7 , so don’t forget to bring warm clothes.
Beijing has a cold, dry and long winter from early 8 to the next March. The temperature in December, January and February would usually be below 0℃. Be sure to bring winter clothes. The Spring Festival usually 9 in January or February. It is very cold at that time, 10 travelling in the city at that time would be unforgettable as you can experience the biggest traditional festival.
( )1．A．lasts B．rains C．stands D．reaches
( )2．A．goes B．drops C．pushes D．rises
( )3．A．cool B．warm C．smart D．beautiful
( )4．A．need B．get C．call D．is
( )5．A．dress B．camera C．telephone D．umbrella
( )6．A．sleep B．travel C．research D．work
( )7．A．gently B．finally C．quickly D．happily
( )8．A．November B．June C．January D．February
( )9．A．grows B．falls C．misses D．keeps
( )10．A．so B．and C．or D．but
Day 2 · 巩固练习
一、完形填空（15小题，每题1分，共15分）
建议用时：12分钟 | 实际用时：____分钟 | 得分：____/15
答题要求：阅读短文，从每题所给A、B、C、D四个选项中选出可以填入空白处的最佳选项。
I live in Yantai. That is a beautiful 1 . In spring, the weather is not too cold or too hot. It’s very warm. It is the best 2 to go out. We can go and look for the wild vegetables to 3 . They are good for our health. In summer, the weather is a little hot and 4 , so people often swim in the pool or sea. In autumn, the weather is cool. People 5 the Mid-Autumn Festival in autumn and you can enjoy many 6 like apples and grapes. Winter is from December to February. It is very 7 in winter. And there is lots of snow on the trees, houses and streets, so the city is sometimes 8 during the winter. The children like going out and playing with 9 . They like making snowmen outside. My grandmother doesn’t like winter. It’s too cold, so she always 10 .
( )1．A．park B．house C．city D．home
( )2．A．place B．person C．area D．time
( )3．A．eat B．see C．watch D．wear
( )4．A．cold B．windy C．cloudy D．wet
( )5．A．celebrate B．leave C．share D．experience
( )6．A．animals B．fruits C．sports D．subjects
( )7．A．rainy B．warm C．cold D．hot
( )8．A．red B．green C．yellow D．white
( )9．A．snow B．water C．sand D．rocks
( )10．A．goes out B．stays out C．stays in D．hurries up
二、语法填空（10小题，每题1分，共10分）
建议用时：8分钟 | 实际用时：____分钟 | 得分：____/10
答题要求：阅读短文，在空白处填入一个适当的单词或括号内单词的正确形式。
We can watch the rain in summer and enjoy the snow in winter. But can we see 1． wind You will say no, but it blows (吹) all year round.
We can’t see the wind, but we can feel it. 2． we sit under a tree on a hot summer day, the wind can cool us. When we take a walk on a winter morning, the wind blows and makes 3． (our) feel like ice.
We can’t see the wind,but we can hear it. Listen! The leaves (叶子) 4． (sing) in the autumn wind. When the wind blows hard, it sounds 5． a train.
We can’t see the wind, but we can see what it is doing. Look! The flags 6． (dance) in the spring wind. The wind can make things easy. Sometimes it helps us go 7． (quick) on a bike and it makes the boat drive fast on the river. The wind can make things difficult. Sometimes it can be hard 8． (walk) in the strong wind. Very big wind can cause (造成) 9． (problem)—it can blow down trees and some houses. Then the people and animals may lose their homes.
The wind makes things fun and it makes things bad. What do you think of the 10． (wind) weather
Day 3 · 重点提升
一、语法填空（10小题，每题1分，共10分）
建议用时：8分钟 | 实际用时：____分钟 | 得分：____/10
答题要求：阅读短文，在空白处填入一个适当的单词或括号内单词的正确形式。
Many people think that dinosaurs were the biggest animals throughout history. They are wrong. The world’s biggest animal 1． (survive), and it lives in the sea. It 2． (call) the Blue Whale. Blue Whales can be as long as 33 metres 3． they weigh as much as 181 tons.
The whale is not only the world’s biggest animal, but also one of 4． (clever) animals. 5． (amazing), whales can communicate with one another. However, we do not know what they are saying. One day, perhaps we will learn 6． (talk) with whales, and then they will tell us 7． they are able to understand us or not.
There are lots of 8． (story) about whales, and the most famous one is called Moby-Dick. The story was written by 9． American writer named Herman Melville. He spent a lot of time doing research 10． whales. Over years, people have killed them for food and other things. However, there are now laws to stop people killing them.
二、阅读理解（5小题，每题2分，共10分）
建议用时：8分钟 | 实际用时：____分钟 | 得分：____/10
答题要求：阅读短文，从每题所给A、B、C、D四个选项中选出最佳选项。
From red apples and yellow lemons to blueberries and green melons, fruits come in different colors. Why do different kinds of fruits have so many colors
According to an expert from the Chinese Academy of Sciences, fruit colors actually come from their different pigments (色素), such as red or yellow carotenoids and blue or purple anthocyanins. These pigments appear in different amounts, depending on the fruit’s environment. This causes the fruit to turn a certain color.
To find out how the environment affects fruit colors, Chinese scientists studied a lot of different fruit colors, including white, red, blue, purple and black.
They found that red fruits tend to grow in cooler places. And instead of just growing in one place, you can find them growing in many places around the world. Blue and purple fruits mostly grow in warm places. The fruits tend to grow a lot in just one specific area. The scientists also found that the closer the fruit is to the equator, the darker its color will be.
Animals also have an impact on the evolution of fruit colors. Animals eat fruits and drop the seeds in other places later. This helps the fruits spread and grow in different places. Therefore, in order to attract animals, some fruits develop colors that are easy for animals to see.
However, animals see colors in a different way. Fruits need to develop colors that are suited to animals’ visual ability. For example, birds can see red more easily than humans can. Therefore, there will be more red fruits in areas where birds live. The lemurs (狐猴) of Madagascar are red-green color-blind. Most yellow fruits can be found in their habitats, as they can easily see this color.
( )1．Where do fruit colors come from according to the expert from the Chinese Academy of Sciences
A．Different kinds of fruits B．Different pigments in fruits
C．Different growing environments D．Different animals eating fruits
( )2．What does Paragraph 4 mainly tell us
A．The colors of fruits change as the environment changes.
B．The colors of blue and purple fruits near the equator are darker than in other places.
C．There are different kinds of fruits in different places.
D．It’s good to eat fruits of different colors.
( )3．What does the underlined word “evolution” mean in the fifth paragraph
A．The plan that can make something go on.
B．The way that makes something else better.
C．The gradual development that suits changes.
D．The place where animals or plants can grow fast.
( )4．What do we know from the passage
A．Cool places are better for blue and purple fruits.
B．Carotenoids are blue or purple.
C．Some fruits develop colors to attract animals.
D．Lemurs like yellow fruits better than red fruits.
( )5．What is the best title for the passage
A．The use of different colors of fruits
B．The secrets behind colors of fruits
C．Animals and the colors of fruits
D．Environment and the colors of fruits
Day 4 · 能力进阶
一、补全对话（5小题，每题2分，共10分）
建议用时：5分钟 | 实际用时：____分钟 | 得分：____/10
答题要求：从方框内所给选项中选出最佳选项补全对话（有两项多余）。
A: Hi, Sara. I heard you and your friends went to Victoria Falls (维多利亚瀑布) last Saturday. 1
B: Yes, Frank! We had a great Saturday.
A: Could you tell me something about it
B: Sure! 2．
A: That sounds really special! 3．
B: Well, it’s about 1,800 metres wide.
A: Got it. Did you take any photos when you were there
B: Of course. 4． The landscape is well-protected.
A: That’s great to hear! 5．
B: You are right.
A．How wide is it
B．When did you go
C．We took lots of photos.
D．Did you have a good time there
E．What about showing me some photos
F．It’s important to keep such a wonderful place clean.
G．It’s one of the three largest waterfalls in the world.
二、完形填空（15小题，每题1分，共15分）
建议用时：12分钟 | 实际用时：____分钟 | 得分：____/15
答题要求：阅读短文，从每题所给A、B、C、D四个选项中选出可以填入空白处的最佳选项。
Wang Wei has loved nature since childhood. In primary school, he often hiked with his father on weekends. During those trips, he 1 many kinds of plants and animals. He even kept a diary to record what he saw. His father often told him, “Nature is like a big book. You can 2 a lot from it if you pay attention.”
As he grew up, his 3 in nature became stronger. Last year, he joined his school’s nature exploration club. The club members take part in different activities monthly. Once, they went to a forest to study birds. They got up early and walked quietly. Wang Wei 4 sparrows carefully. He observed (观察) how they built nests and searched for food, and took many photos.
Not all activities are easy. Last month, the club planned to collect mountain plant samples. On the way, it 5 rained. The road turned slippery, and Wang Wei almost fell. But he didn’t 6 . With teammates’ help, he reached the top and collected rare plants.
Wang Wei often says, “Nature exploration is not always 7 , but it’s always meaningful. Every time I make a small discovery, I feel very 8 . ” He hopes to be a scientist like Wang Wencai, to discover more about nature and share 9 .
His teachers and classmates believe he will 10 his dream. He has a strong love for nature and is always ready to face challenges.
( )1．A．missed B．forgot C．hid D．noticed
( )2．A．teach B．learn C．buy D．sell
( )3．A．interest B．chance C．study D．success
( )4．A．wondered B．explained C．watched D．imagined
( )5．A．loudly B．suddenly C．smoothly D．finally
( )6．A．give up B．wake up C．cheer up D．hurry up
( )7．A．boring B．easy C．dangerous D．expensive
( )8．A．sad B．angry C．proud D．worried
( )9．A．findings B．inventions C．means D．speeches
( )10．A．achieve B．break C．change D．fail
Day 5 · 拓展运用
一、阅读理解（5小题，每题2分，共10分）
建议用时：8分钟 | 实际用时：____分钟 | 得分：____/10
答题要求：阅读短文，从每题所给A、B、C、D四个选项中选出最佳选项。
Coral reefs are one of the most amazing natural wonders on Earth. They are often called “the rainforests of the sea” because they are home to thousands of species of fish, plants and other creatures. Coral reefs cover less than 0.1% of the ocean floor, but they support more than 25% of all marine species.
Coral reefs are not just rocks. They are made up of tiny living creatures called coral polyps. These polyps live in groups and secrete a hard substance that forms the structure of the reef. Coral reefs grow very slowly—only about 1 to 2 centimeters per year. Some coral reefs have been around for millions of years.
However, coral reefs are in great danger now. Climate change is causing the ocean temperature to rise, which makes the coral turn white and die. Pollution from factories and farms is also harming the reefs. Plastic waste in the ocean can get stuck on the reefs and kill the polyps. In addition, overfishing is destroying the balance of the marine ecosystem.
But there is hope. Many organizations and individuals are working hard to protect coral reefs. Scientists are researching ways to help coral reefs adapt to climate change. Volunteers are cleaning up plastic waste from the ocean. Governments are making laws to stop overfishing and pollution.
We can also do our part to protect coral reefs. For example, we can reduce our carbon footprint by saving energy and using public transport. We can also avoid buying products that harm coral reefs, such as certain sunscreens. Every small action can help save these beautiful natural wonders.
( )1．Why are coral reefs called “the rainforests of the sea”
A．They are as big as rainforests. B．They grow in the same area as rainforests.
C．They support a large number of species. D．They are made up of tiny plants.
( )2．What does the underlined word “secrete” mean in Chinese
A．吸收 B．分泌 C．消耗 D．储存
( )3．Which of the following is NOT a threat to coral reefs
A．Rising ocean temperatures. B．Plastic pollution.
C．Overfishing. D．Marine protected areas.
( )4．What can we infer from the passage
A．Coral reefs grow very quickly.
B．Only scientists can protect coral reefs.
C．If we take action, coral reefs can be saved.
D．Coral reefs are not important for the marine ecosystem.
( )5．What is the main idea of the passage
A．Coral reefs are home to many marine species.B．Coral reefs are in danger and need protection.
C．How coral reefs are formed.D．Why coral reefs are important.
二、补全对话（5小题，每题2分，共10分）
建议用时：5分钟 | 实际用时：____分钟 | 得分：____/10
答题要求：从方框内所给选项中选出最佳选项补全对话（有两项多余）。
A: Our school is organizing a fun study trip this weekend. Do you want to come with us
B: Will you go to the Three Gorges Museum 1．
A: Well, actually we are planning to visit Chongqing Natural History Museum.
B: What a pity! 2．
A: We can see different kinds of specimens and dinosaur fossils.
B: Wow! That sounds great!
A: 3． I’m sure it will be fun.
B: Thanks for inviting me. But I still want to visit the Three Gorges Museum this weekend. 4．
A: Of course! And you can show me yours too! 5．
B: You, too!
A．What can you see there
B．Would you like to go with us
C．Hope you have a wonderful trip!
D．I have to prepare for an exam this weekend.
E．Could you share your pictures with me after the trip
F．There you can see what Chongqing was like in the past.
G．We will go to Chongqing Natural History Museum by bike.
Day 6 · 综合练习
一、完形填空（15小题，每题1分，共15分）
建议用时：12分钟 | 实际用时：____分钟 | 得分：____/15
答题要求：阅读短文，从每题所给A、B、C、D四个选项中选出可以填入空白处的最佳选项。
Have you ever seen a group of wild geese (大雁) flying south for the winter On an autumn day, my mother and I took a walk by the lake. As we looked at the 1 , a group of wild geese suddenly appeared. They headed south for the winter in the 2 of a “V”. I was caught by the surprising sight. My mother 3 the animal migration (迁徙) to me. One of the most surprising examples is the gray whales which have the 4 yearly trip, covering almost 20,000 kilometers. These whales 5 landmarks near the sea to move to the north or south. When migrating south in winter, they keep the beach on their left. When migrating north in spring, they keep the coast on their 6 . What’s more, my mother explained that the migration of birds 7 the Earth’s magnetic field (磁场). These birds know how to use the magnetic field to 8 when the sun or stars are covered by clouds.
Learning about animal migration makes me realize 9 magical the natural world is. We should never stop exploring and questioning, 10 there is always something new to discover. The natural world is full of wonders, and we should do our best to enjoy and protect it.
( )1．A．lake B．forest C．sky D．ground
( )2．A．circle B．length C．size D．shape
( )3．A．explained B．suggested C．taught D．compared
( )4．A．darkest B．hardest C．longest D．nearest
( )5．A．like B．use C．protect D．trust
( )6．A．left B．right C．front D．back
( )7．A．lives on B．feeds on C．works on D．depends on
( )8．A．rest B．wait C．move D．hide
( )9．A．what B．how C．why D．when
( )10．A．because B．if C．until D．though
二、语法填空（10小题，每题1分，共10分）
建议用时：8分钟 | 实际用时：____分钟 | 得分：____/10
答题要求：阅读短文，在空白处填入一个适当的单词或括号内单词的正确形式。
Do you believe a rose plant says, “I’m thirsty!” or a tree shouts, “My arms hurt Maybe you will say this could only happen in some 1． (children) stories.
In fact, plants are not always silent. So far, a recent study 2． (find) plants shout when they are in need of water or having their stems cut. “Even in a quiet field, there are 3． (actual) some sounds that carry information (信息). However, the pitch (音高) is too high for people 4． (hear),” said a teacher from Tel Aviv University. The researchers used microphones to record some tomato plants and found that stressed plants send out 5． (many) sounds than unstressed plants. “When tomatoes are not stressed at all, they are very quiet.”
The teacher said that they also developed a machine to tell the differences 6． thirsty plants and cut plants. The result shows that 7． the causes of stress change, they shout differently. After 8． team recorded many kinds of other plants, they found that many plants like corn, wheat and grape plants send out sounds when they are under stress, too.
“There is a possibility that a lot of talk is happening,” Professor Hadany said. “Because other 9． (plant) may hear the call of the stressed plants.”
Sound recordings of plants could bring humans lots of advantages especially (尤其) in farming. For example, people will make sure 10． corn is getting enough water or not, or where water is needed most.
Day 7 · 单元过关
一、阅读理解（5小题，每题2分，共10分）
建议用时：8分钟 | 实际用时：____分钟 | 得分：____/10
答题要求：阅读短文，从每题所给A、B、C、D四个选项中选出最佳选项。
Historically, people explored the ocean to find new ways to travel around the world or to start new trade routes. Today, we pay more attention to the ocean itself in the ocean exploration.
In recent years, new technology has made it easier to dive (潜水) into the deep sea. Better submarines (潜艇), robots and cameras now allow scientists to explore areas people couldn’t reach before. China’s Mengxiang deep-ocean drilling vessel (大洋钻探船) can now be added to the list.
Believe it or not, we know more about space than we do about the deep sea. Since 1969, only three have dived to the Mariana Trench’s deepest point. Even more shocking Although the ocean covers about 71% of Earth’s surface, 95% of it is unexplored.
Why does so much of the ocean remain unknown Part of the reason is that it’s difficult to explore. Sure, it’s hard to get a spaceship into space. But remember that in space, you can see things. The deep sea, however, is hopelessly dark. Getting a light down there that can shine far enough is no easy task.
That being said, ocean exploration is worth the risk and cost. The ocean is connected to all of us and plays a role in everything from the air we breathe, the food we eat and the transportation of the goods we buy to weather and longer-term climate trends (趋势). The deep ocean also holds huge amounts of oil, gas, metals and so on.
( )1．Why didn’t scientists reach the deep sea in the past
A．They didn’t think it was worth the risk.
B．They didn’t have high-level technology.
C．They thought there was no need to do it.
D．They wanted the knowledge from shallower waters.
( )2．What can we learn from Paragraph 2
A．Mengxiang deep-ocean drilling vessel is popular with tourists.
B．Mengxiang deep-ocean drilling vessel is mainly used for trade.
C．China has made great progress in ocean exploration technology.
D．China is the first country to explore shallower and deeper waters.
( )3．Why does the writer mention space in the passage
A．To prove the interest of ocean exploration.
B．To show the necessity of space exploration.
C．To show the difficulty of ocean exploration.
D．To prove the importance of space exploration.
( )4．What does the underlined word “task” refer to
A．Inventing a new light.
B．Seeing the things in space.
C．Getting a spaceship into space.
D．Sending a bright enough light down.
( )5．What can we learn from the passage
A．Deep ocean exploration is important and necessary.
B．The ocean influences the long-term climate trends most.
C．We have explored most of the resources in the deep waters.
D．The ocean coverage is large and we have explored most of it.
二、完形填空（15小题，每题1分，共15分）
建议用时：12分钟 | 实际用时：____分钟 | 得分：____/15
答题要求：阅读短文，从每题所给A、B、C、D四个选项中选出可以填入空白处的最佳选项。
Have you ever heard of “forest bathing” It doesn’t mean taking a bath in the woods. It is a Japanese practice called Shinrinyoku, which means “taking in the forest atmosphere”. It’s a way to connect with nature through our 1 .
The idea is simple. You find a quiet forest, leave your phone behind, and 2 walk. You don’t need to go for a long hike or count steps. The goal is to 3 the experience slowly. You can sit, look at the trees, listen to the birds, or feel the breeze on your skin.
Scientists have studied the 4 of forest bathing. They found that spending time in a forest can reduce stress, lower blood pressure, and improve your mood. The natural scents from the trees, called phytoncides, are thought to 5 the human immune (免疫的) system. It’s like a natural therapy that is both simple and 6 .
In cities, where life is often fast and 7 , finding such peace can be hard. But you don’t need to travel to a distant forest. A quiet park or a treelined street can 8 as a place for your own mini forest bathing experience. The key is to be present and use all your 9 .
So next time you feel overwhelmed, try stepping outside. You might be surprised at how much this ancient practice can help you 10 and find your inner calm.
( )1．A．minds B．senses C．skills D．voices
( )2．A．quickly B．bravely C．simply D．dangerously
( )3．A．rush B．end C．miss D．enjoy
( )4．A．benefits B．problems C．risks D．reasons
( )5．A．harm B．test C．boost D．show
( )6．A．expensive B．effective C．difficult D．strange
( )7．A．quiet B．boring C．noisy D．free
( )8．A．serve B．use C．design D．make
( )9．A．senses B．time C．money D．power
( )10．A．work out B．run out C．turn out D．slow down
三、语法填空（10小题，每题1分，共10分）
建议用时：8分钟 | 实际用时：____分钟 | 得分：____/10
答题要求：阅读短文，在空白处填入一个适当的单词或括号内单词的正确形式。
For years, there has been an 1． (argue) among scientists about whether Mars once had oceans. Many guessed it might be true, but there were no strong facts 2． (prove) it—until recent space missions changed everything.
Space research helps us 3． (unlock) the secrets of unknown worlds, and Mars is a perfect example. China’s Zhurong rover used ground-penetrating radar (探地雷达) to study the planet’s subsurface. The data 4． (show) that there are layered sediment structures (层状沉积物结构) 10 to 35 metres underground, which are very similar to coastal deposits on Earth. This 5． (find) raises powerful proof that Mars had a large ancient ocean billions of years ago.
Beyond our solar system, scientists have found 6． (thousand) of exoplanets (系外行星). Some, like Kepler-22b, orbit in the habitable zone (宜居地带) of their stars, where liquid water might exist. These 7． (discover) don’t just answer old questions—they also make us wonder more about the universe.
Space 8． (explore) is never easy, but every new finding 9． (remind) us how much there is to learn. As we keep looking up, we will surely know more mysteries of the unknown and gain a deeper 10． (understand) of our place in the universe.
四、补全对话（5小题，每题2分，共10分）
建议用时：5分钟 | 实际用时：____分钟 | 得分：____/10
答题要求：从方框内所给选项中选出最佳选项补全对话（有两项多余）。
A: Hi, Lucy. I haven’t seen you for several hours. Where have you been
B: Hi, Tony. 1． I have found some information about the universe (宇宙)．
A: Really Would you like to tell me some of it
B: Of course. What do you want to know
A: Well. 2．
B: Millions of years.
A: Wow! So long. 3．
B: Not yet.
A: 4．
B: Yes, that’s right. But scientists have discovered water on Mars.
A: That’s interesting.
B: Oh, I want to return the book to Jack, but I can’t find him. Do you know where he is
A: 5． You can find him there.
B: Thanks a lot.
A．I have been to the library.
B．Have they ever been to Mars
C．He has just gone to the playground.
D．Do you think we can go to Mars one day
E．How long has there been life on the Earth
F．So, have scientists found life on other planets
G．That means so far there has been life only on the Earth.答案解析
Day 1 · 基础夯实
一、阅读理解
1. 答案：B。解析：根据第二段“hide from enemies and communicate”直接定位；A吸引朋友、C保暖、D找食均排除。
2. 答案：B。解析：根据第三段“closes its leaves when touched”直接提取；A更快生长、C变色、D发声均排除。
3. 答案：A。解析：根据第四段“use echolocation to find food”直接定位；B靠视力、C靠嗅觉、D跟随动物均排除。
4. 答案：C。解析：根据第五段“tell other bees where to find food”直接提取；A预警、B建蜂巢、D玩耍均排除。
5. 答案：C。解析：主旨题，全文讲生物特殊生存技能；A保护自然、B动物是朋友、D自然奇观均排除。
二、完形填空
1. 答案：A。解析：lasts till 意为“持续到”，符合春天时长；B下雨、C站立、D到达排除。
2. 答案：D。解析：春天温度 rises“上升”；A走、B下降、C推排除。
3. 答案：B。解析：夜凉需穿 warm“暖和”衣服；A凉爽、C聪明、D漂亮排除。
4. 答案：A。解析：need light clothes“需要轻薄衣物”；B得到、C称呼、D是排除。
5. 答案：D。解析：多雨带 umbrella“雨伞”；A裙子、B相机、C电话排除。
6. 答案：B。解析：best season for travel“旅行最佳季节”；A睡觉、C研究、D工作排除。
7. 答案：C。解析：drops quickly“气温快速下降”；A温柔、B最终、D开心排除。
8. 答案：A。解析：冬天从 November“11月”开始；B6月、C1月、D2月排除。
9. 答案：B。解析：节日 falls“来临”；A生长、C错过、D保持排除。
10. 答案：D。解析：but 表转折“很冷但难忘”；A所以、B和、C否则排除。
Day 2 · 巩固练习
一、完形填空
1. 答案：C。解析：Yantai 是 city“城市”；A公园、B房子、D家排除。
2. 答案：D。解析：best time to go out“外出最佳时间”；A地点、B人、C区域排除。
3. 答案：A。解析：wild vegetables to eat“野菜吃”；B看见、C观看、D穿排除。
4. 答案：D。解析：夏天 hot and wet“湿热”；A冷、B多风、C多云排除。
5. 答案：A。解析：celebrate Festival“过节”；B离开、C分享、D经历排除。
6. 答案：B。解析：apples, grapes 是 fruits“水果”；A动物、C运动、D科目排除。
7. 答案：C。解析：冬天 very cold“很冷”；A多雨、B暖和、D热排除。
8. 答案：D。解析：雪后城市 white“白色”；A红、B绿、C黄排除。
9. 答案：A。解析：play with snow“玩雪”；B水、C沙子、D石头排除。
10. 答案：C。解析：冷所以 stays in“待在家里”；A外出、B熬夜、D赶快排除。
二、语法填空
1. 答案：the。解析：the wind 特指风，固定搭配。
2. 答案：When。解析：When 引导时间状语“当……时”。
3. 答案：us。解析：make us feel 让我们感觉，宾格形式。
4. 答案：are singing。解析：now 语境用现在进行时 are singing。
5. 答案：like。解析：sound like 听起来像，固定短语。
6. 答案：are dancing。解析：look 提示现在进行时 are dancing。
7. 答案：quickly。解析：副词 quickly 修饰动词 go。
8. 答案：to walk。解析：it be hard to do 做某事很难。
9. 答案：problems。解析：cause problems 造成问题，复数。
10. 答案：windy。解析：windy weather 有风的天气，形容词。
Day 3 · 重点提升
一、语法填空
1. 答案：survives。解析：主语单数，一般现在时 survives。
2. 答案：is called。解析：被动语态“被叫作”，is called。
3. 答案：and。解析：并列句，长度与重量并列用 and。
4. 答案：the cleverest。解析：one of + 最高级 the cleverest。
5. 答案：Amazingly。解析：副词 Amazingly 放句首“令人惊讶地”。
6. 答案：to talk。解析：learn to do 学习做某事。
7. 答案：whether。解析：whether…or not 是否，固定搭配。
8. 答案：stories。解析：lots of 后用复数 stories。
9. 答案：an。解析：American 元音开头用 an。
10. 答案：on。解析：research on 关于……的研究。
二、阅读理解
1. 答案：B。解析：根据第二段“come from different pigments”定位；A水果种类、C环境、D动物排除。
2. 答案：A。解析：第四段讲环境影响颜色；B仅讲紫色、C讲地点、D讲吃水果排除。
3. 答案：C。解析：evolution 意为“进化、逐步发展适应环境”；A计划、B方式、D地点排除。
4. 答案：C。解析：根据第五段“attract animals”得出；A冷地适合红果、B胡萝卜素黄色、D狐猴色盲非更喜欢排除。
5. 答案：B。解析：全文讲水果颜色秘密；A用途、C动物与颜色、D环境与颜色均片面。
Day 4 · 能力进阶
一、补全对话
1. 答案：D。解析：答句 Yes 对应一般疑问句“玩得开心吗”。
2. 答案：G。解析：介绍瀑布“世界三大瀑布之一”。
3. 答案：A。解析：答句 1800 metres wide 对应问多宽。
4. 答案：C。解析：问句拍照吗，答句“拍了很多”。
5. 答案：F。解析：答句 You are right 对应“保护很重要”。
二、完形填空
1. 答案：D。解析：noticed plants and animals“注意到动植物”；A错过、B忘记、C躲藏排除。
2. 答案：B。解析：learn a lot from it“从中学到很多”；A教、C买、D卖排除。
3. 答案：A。解析：interest in nature“对自然兴趣”；B机会、C学习、D成功排除。
4. 答案：C。解析：watched sparrows“观察麻雀”；A想知道、B解释、D想象排除。
5. 答案：B。解析：suddenly rained“突然下雨”；A大声、C顺利、D最终排除。
6. 答案：A。解析：didn’t give up“不放弃”；B醒来、C振奋、D赶快排除。
7. 答案：B。解析：not always easy“不总是容易”；A无聊、C危险、D昂贵排除。
8. 答案：C。解析：feel proud“感到自豪”；A伤心、B生气、D担忧排除。
9. 答案：A。解析：share findings“分享发现”；B发明、C方法、D演讲排除。
10. 答案：A。解析：achieve dream“实现梦想”；B打破、C改变、D失败排除。
Day 5 · 拓展运用
一、阅读理解
1. 答案：C。解析：根据“support 25% marine species”定位；A一样大、B同区域、D由植物构成排除。
2. 答案：B。解析：secrete 意为“分泌”硬物质；A吸收、C消耗、D储存排除。
3. 答案：D。解析：海洋保护区是保护不是威胁；A升温、B塑料、C过度捕捞均是威胁排除。
4. 答案：C。解析：根据文末行动可拯救珊瑚；A长得快、B只有科学家、D不重要排除。
5. 答案：B。解析：全文讲珊瑚濒危与保护；A家园、C形成、D重要性均片面。
二、补全对话
1. 答案：F。解析：说明三峡博物馆能看过去重庆。
2. 答案：A。解析：答句 see specimens 对应问能看什么。
3. 答案：B。解析：邀请对方一起去。
4. 答案：E。解析：请求旅行后分享照片。
5. 答案：C。解析：结尾祝福旅途愉快。
Day 6 · 综合练习
一、完形填空
1. 答案：C。解析：looked at the sky“看天空”；A湖、B森林、D地面排除。
2. 答案：D。解析：in the shape of“呈……形状”；A圈、B长度、C尺寸排除。
3. 答案：A。解析：explained to me“向我解释”；B建议、C教、D比较排除。
4. 答案：C。解析：longest trip“最长旅程”；A最黑、B最难、D最近排除。
5. 答案：B。解析：use landmarks“使用地标”；A喜欢、C保护、D信任排除。
6. 答案：B。解析：前文 left 对应相反方向 right；A左、C前、D后排除。
7. 答案：D。解析：depends on“依靠磁场”；A以……为生、B以……为食、C从事排除。
8. 答案：C。解析：use magnetic field to move“移动”；A休息、B等待、D躲藏排除。
9. 答案：B。解析：how magical“多么神奇”；Awhat 不可修饰形容词、C为什么、D何时排除。
10. 答案：A。解析：because“因为总有新发现”；B如果、C直到、D虽然排除。
二、语法填空
1. 答案：children’s。解析：children’s stories 儿童故事，所有格。
2. 答案：has found。解析：so far 现在完成时 has found。
3. 答案：actually。解析：副词 actually 修饰动词。
4. 答案：to hear。解析：too…to… 太……而不能 hear。
5. 答案：more。解析：than 比较级 more。
6. 答案：between。解析：between…and… 在两者之间。
7. 答案：when。解析：when 引导时间状语“当……时”。
8. 答案：the。解析：the team 特指这个团队。
9. 答案：plants。解析：other plants 其他植物，复数。
10. 答案：whether。解析：whether…or not 是否。
Day 7 · 单元过关
一、阅读理解
1. 答案：B。解析：过去无高级技术；A不值得、C没必要、D浅水知识排除。
2. 答案：C。解析：中国技术取得巨大进步；A受游客欢迎、B贸易、D首个国家排除。
3. 答案：C。解析：对比太空突出深海探索难；A证明兴趣、B太空必要、D太空重要排除。
4. 答案：D。解析：task 指“送足够强光下去”；A发明灯、B看太空、C飞船上天排除。
5. 答案：A。解析：深海探索重要且必要；B影响最大、C已勘探多数、D已勘探大部分排除。
二、完形填空
1. 答案：B。解析：through senses“通过感官”；A思想、C技能、D声音排除。
2. 答案：C。解析：simply walk“简单散步”；A快、B勇敢、D危险排除。
3. 答案：D。解析：enjoy the experience“享受体验”；A冲、B结束、C错过排除。
4. 答案：A。解析：benefits“益处”；B问题、C风险、D原因排除。
5. 答案：C。解析：boost immune system“增强免疫力”；A伤害、B测试、D展示排除。
6. 答案：B。解析：simple and effective“简单有效”；A贵、C难、D奇怪排除。
7. 答案：C。解析：fast and noisy“快且嘈杂”；A安静、B无聊、D自由排除。
8. 答案：A。解析：serve as“充当、作为”；B使用、C设计、D制作排除。
9. 答案：A。解析：use all senses“动用所有感官”；B时间、C钱、D力量排除。
10. 答案：D。解析：slow down“放慢节奏”；A锻炼、B用完、C结果是排除。
三、语法填空
1. 答案：argument。解析：an argument 一场争论，名词。
2. 答案：to prove。解析：不定式 to prove 作后置定语。
3. 答案：(to) unlock。解析：help sb. (to) do 帮助做某事。
4. 答案：shows。解析：主语 data 单数，一般现在时 shows。
5. 答案：finding。解析：this finding 这个发现，名词。
6. 答案：thousands。解析：thousands of 成千上万。
7. 答案：discoveries。解析：these discoveries 这些发现，复数。
8. 答案：exploration。解析：space exploration 太空探索，名词。
9. 答案：reminds。解析：every finding 单数，reminds 提醒。
10. 答案：understanding。解析：a deeper understanding 更深理解。
四、补全对话
1. 答案：A。解析：问句去哪儿，答句去图书馆。
2. 答案：E。解析：答句 Millions of years 对应问多久。
3. 答案：F。解析：答句 Not yet 对应一般疑问句。
4. 答案：G。解析：总结“只有地球有生命”。
5. 答案：C。解析：答句去操场找 Jack。

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