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八年级英语上册Unit 7 The natural world单元练习卷
（满分120分 附答案）
一、单项选择(共10小题，每小题1分, 计10分)
1. Yancheng Nature Reserve has area of over 4530 square kilometers, it became one
of________ world's most important wetlands in 2002.
A. an; the B. an; a C. the; a D. /; the
2. Let's plant some trees so that they can ________the water from washing the earth away.
A. protect B. provide C. prevent D. prepare
3. He has failed many times, ________he never loses heart.
A. and B. but C. or D. so
4. We must get up at 7:00 tomorrow morning, ________we’ll be late for the train.
A. and B. or C. but D. so
5. If you feel ________ in sadness, it' ll be much better to have fun outdoors.
A. trapped B. closed C. broken D. interested
6. The sentence structure of "We paint the wall blue." is "_______".
A. S + V B. S + V + O C. S + V + O + O D. S + V + O + C
7. Don't be afraid of failure, Amy. Stand up from now on and sadness to have a new beginning.
A. get on with B. get rid of C. get used to D. get out of
8. Go bird-watching in Qinglong Lake, ________you will find it fun and meaningful.
A. and B. or C. but D. so
9. The game show was________interesting________all of them liked watching it.
A. so ;that B. such ;that C. too; to D. enough ;to
10.—Do you think the rain will stop tomorrow
—______ . It has rained for ten days. It’s too wet everywhere.
A. I’m afraid it will B. I’m afraid so C. I hope not D. I hope so
二、完形填空(共15小题，每小题1分, 计15分)
Many students of English think that learning a new language is very difficult. If your brain (大脑) is only the size of a bird’s brain, how difficult learning English will be That is what some birds can do.
Many different 11 of birds can imitate (模仿) the sounds of language. African gray parrots (非洲灰鹦鹉) are a good 12 . Now let’s have a look at the following two birds.
Every December in London, a Bird Show tries to 13 the best “talking” bird in the world. One bird named Prudle 14 the prize for 12 years from 1965 to 1976.
Prudle came 15 Uganda, Africa. Mr. Frost in England bought her. She was really 16 , because she knew almost 800 English words. She was also the 17 bird in the world that lived in a cage. Mr. Frost took care of her until she 18 in 1994, at the age of 35.
A different kind of bird named Puck joined the 19 in 1993. Puck was wonderful. It knew 20 English words than Prudle did—over 1700 words. It got the best 21 of this year and became the new winner.
22 a bird can learn a new language, anybody can do it too. We shouldn’t think that 23 a new language is so difficult any longer. So 24 on! You can make it when you really take it 25 .
11．A．colors B．names C．kinds D．parts
12．A．example B．report C．idea D．program
13．A．see B．choose C．sell D．act
14．A．gave B．set C．sold D．won
15．A．to B．out C．from D．with
16．A．rich B．angry C．clever D．enjoyable
17．A．oldest B．most C．worst D．biggest
18．A．felt B．appeared C．died D．came
19．A．subject B．culture C．club D．competition
20．A．more B．less C．fewer D．better
21．A．song B．grades C．fact D．reason
22．A．If B．Though C．As D．Since
23．A．sharing B．reading C．learning D．listening to
24．A．go B．come C．get D．live
25．A．successfully B．comfortably C．beautifully D．seriously
三、阅读理解(共20小题;每小题2分, 计40分)
（一）阅读下列短文，从每题所给的A、B、C、D 四个选项选出最佳答案。
A
The undersea world is very beautiful. Now more and more people want to dive in the water to find the secret there. Scuba diving is a new sport today. It can take you into a wonderful undersea world.
You will find many strange animals in the sea. Some are as large as a school bus. Many sea animals give out light in the dark and some have sharp teeth.
During the day, there is enough light. Here, under the sea, everything is blue and green. When fish swim nearby, you can catch them with your hands. When you have bottles of air on your back, you can stay in deep water for a long time. However, you can’t dive too deep. And you must be very careful when you dive in deep water.
The deep sea is not an easy place to live in. It’s cold, and it’s dark, too. The deeper it is, the less sunlight there is. At about 3,000 feet, there is no light at all. It is very dark in the sea. Many fishes have no eyes. Some have big eyes. A few have eyes on one side.
Besides the cold and the darkness, deep-sea animals face another danger—other animals. Animals eat! They must find food to eat. Many animals eat plants. However, some animals eat meat. This means these sea animals have two big jobs—they need to find animals as food, and they have to try not to become other animals’ meal.
26．In the daytime, when you dive in the sea, you ________.
A．can see everything green and blue B．can’t be in danger
C．can catch nothing D．can’t see anything clearly
27．When you do scuba diving, you can ________.
A．stay in deep water for a long time B．dive very, very deep
C．live in deep water easily D．dive freely without any dangers
28．Which of the following is NOT TRUE according to the passage
A．When one animal is finding something to eat, it may be eaten by others.
B．At the depth of 3,000 feet under the sea, many animals can find their way by hearing and feeling.
C．You can catch the strange animals in the sea without any danger.
D．It’s difficult to live in the deep sea because it’s too dark and cold.
B
Many animals are small and helpless (不能自立的) when they are babies. But their mums and dads can take good care of them.
The baby penguins cannot find food. So they need to get food from their parents. The mother penguins try their best to find enough food for their babies. The father penguins keep the baby penguins warm.
The baby swans love to be on their mother’s back. Sometimes there will be three or four baby swans on the mother swan’s back. The baby swans play on their mother swan’s back during the day and sleep at night.
The baby whales need to learn how to breathe. The mother whales help their babies to get the new air. The mother whales also show their babies how to swim up and catch the fish.
Every mother kangaroo has a pouch(育儿袋). It is like a big bag and carries the kangaroo babies in it. The pouch is warm, and the babies can eat there. The mother kangaroos keep their babies in their pouches wherever they go, so it’s very safe for the babies.
29．Which word can best describe the mother penguins
A．Interesting. B．Helpful. C．Beautiful. D．Happy.
30．Which animal likes to play on its mother’s back
A．The baby penguin. B．The baby swan.
C．The baby whale. D．The baby kangaroo.
31．In which part of the magazine can we find the text
A．Health. B．Travel. C．Sports. D．Animals.
C
Nature is full of wonders, especially when it comes to the world of plants and animals. Let’s take a look at some of the most extraordinary ones.
The tallest plant in the world is the redwood tree. These giant trees can reach heights of over 100 metres. Their trunks are extremely thick, providing strong support for their great height. Redwoods have a long lifespan (寿命), and some living for thousands of years. They play a crucial role in the ecosystem by providing habitats for countless species.
On the other hand, the Venus flytrap (捕蝇草) is one of the most fascinating plants. It has special leaves that can snap shut in less than a second to catch insects. This unique ability allows it to get nutrients from the insects it catches, as the soil it grows in is often poor in nutrients.
Among animals, the blue whale is the largest creature on earth. It can grow up to 30 metres long and weigh as much as 200 tons. Despite its huge size, it mainly feeds on tiny shrimp-like animals called krill (磷虾).
The cheetah is famous for being the fastest land animal. It can reach speeds of up to 110 kilometres per hour in short bursts. This incredible speed helps it catch its prey in the grasslands.
The axolotl (蝾螈) is a very strange-looking animal. It has the amazing ability to regenerate its body parts. If it loses a limb, it can grow a new one. This unique feature has made it a subject of great interest in scientific research.
These amazing plants and animals not only show the diversity of life on our planet but also remind us of the importance of protecting our natural world.
32．What is the tallest plant in the world
A．The oak tree. B．The redwood tree.
C．The bamboo. D．The coconut tree.
33．Why does the Venus flytrap catch insects
A．Because it likes to play with insects. B．Because it needs nutrients from insects.
C．Because it wants to protect the environment. D．Because it wants to show its special ability.
34．What does the blue whale mainly eat
A．Small fish. B．Sea plants.
C．Krill. D．Other small whales.
35．What makes the axolotl special
A．Its beautiful appearance. B．Its ability to fly.
C．Its ability to change colours. D．Its ability to regenerate body parts.
D
Do you know the hummingbird(蜂鸟) It is the smallest bird in the world. Even the largest hummingbird is only about 20cm long and its body weighs about 20g. The smallest hummingbird is the bee hummingbird. It lives in Cuba. It is about 5.5cm long and weighs about 2g. Bee hummingbirds are just a little bigger than bees. That’s why they get their name.
Although hummingbirds are small, they have really strong bodies. Their wings are long. They can fly as fast as 45km in an hour. They move their wings so fast that they can hover (悬停). This means that they can stay in one place in the middle of the air, like a helicopter (直升飞机). All birds can fly forwards, but only hummingbirds can fly backwards. They are the only birds that can fly backwards. That makes hummingbirds special among the birds on earth.
You can’t see them move their wings, but you can hear them. They make a buzzing (嗡嗡声) noise when they fly. They make this noise because they flap (拍打) their wings up to 80 times a second. All that flapping makes a lot of noise. That’s why we call them hummingbirds.
36．How much do bee hummingbirds weigh
A．20g. B．2g. C．20m. D．5.5m.
37．What is special about the way that hummingbirds fly
A．They can fly faster than the other birds. B．They can fly higher than the other birds.
C．They can fly forwards and backwards. D．They can fly as well as a helicopter.
38．What can we know from the passage
A．Hummingbirds are the largest birds in the world.
B．Hummingbirds have really strong wings and bodies.
C．Hummingbirds can stay in the air like a helicopter.
D．We can’t see hummingbirds when they fly in the air.
39．Why do hummingbirds get the name
A．Because they are just a little bigger than bees.
B．Because they have small but really strong bodies.
C．Because they don’t have to move wings while flying.
D．Because they make a buzzing noise as they flap wings.
40．Where can you see the passage
A．A science report. B．A menu from a restaurant.
C．A student’s diary. D．A magazine about animals.
（二）阅读下面短文，从所给选项中选出能填入空白处的最佳选项，使短文通顺，结构完整，其中有一项是多余选项。
Do you make a resolution on New Year’s Day How to make a good resolution 41
★Plan for the resolution.
It is not enough to have a goal. You need to think out some right steps for the resolution. So make your plan. 42 And it’ll also tell you how to make the goal come true at last. Make a plan is very important.
★ 43
If you make your plan later, you may forget your resolution gradually (逐渐地). It’s important that you start making your plan right now.
★ 44
You should write your resolution and plan in some places, such as a notebook or your diary.
★Think of “year around”, not just New Year’s.
You can’t finish anything in one day. You make a resolution in one day. 45 It may need a hundred small steps. New Year’s resolution should be a starting point. You must keep a habit for making your resolution come true gradually.
四、词汇运用
（一）阅读下列短文，从方框中选出适当的词或短语并用其适当形式填空，使短文通顺，意思完整，每词或短语限用一次。（共10小题;每小题1.5分, 计15分）
Did you ever ride on a camel in the desert The camel sways (摇摆) when it walks. It 46 a boat ride on the sand. People call camels “boat of the desert”.
Long ago, people used camels to carry 47 of their things across hot and dry deserts. Camels are really good at traveling in the desert. They eat plants and carry 48 things than horses. When wind and sand fill the air, they can still 49 . And they don’t need much water. Sometimes, a camel can carry lots of things and go with no 50 for two weeks.
Today, desert people 51 ride on camels and use them to carry things. People also 52 healthy camel milk and eat delicious camel meat. Actually, camels can do even more. People use camel 53 to make tents and even clothes. Even camel droppings (粪便) are 54 . Desert people use them to help cook meals.
So, next time you 55 a desert trip, remember to visit these animals. They have been helping people for a long time.
（二）根据短文内容及首字母提示，填写所缺单词，使其意思完整。（共10小题;每小题1分, 计10分）
Last Saturday, I went to the beach with my family. We had a good time there. I f 56 a starfish (海星) on the beach. It was white and r 57 beautiful. After getting home the next day, I wanted to l58 about starfish. So I began to read the i 59 about starfish on the Internet.
Of course, starfish aren’t real stars. They just look like stars. They live in the sea, b 60 they aren’t fish. There are about 1,900 different kinds of starfish living in the sea all over the world. Starfish don’t live in fresh water. Hundreds of starfish are of different c 61 . The most common starfish are red, orange or yellow.
Starfish can look after t 62 when they are young. Young starfish know what to eat and where to find their food. Starfish can’t swim. They m 63 by using their arms and tube feet (管足). A starfish has no head. A common starfish has five a 64 . You can see most of them have five arms on the beach. But not all starfish have five arms. Some have many more. If an arm falls off, it grows right back.
Because of all these things, the starfish is my favourite animal now. I t 65 it’s interesting and fun. I like it best.
五、阅读并回答问题。（共5小题，每小题2分，计10分）
The Sahara Desert, covering most of North Africa, is the largest desert in the world. From north to south the Sahara is between 800 and 1,200 miles and is at least 3,000 miles from east to west. On the west of the Sahara Desert is the Atlantic Ocean and on the east is the Red Sea, and to the north are the Atlas Mountains and the Mediterranean Sea. Over 25% of the Sahara Desert is covered by sand and dunes(沙丘).
The most amazing part of the land is: How did they get all that sand there in the first place And where did they get it Actually, it turns out that the area used to be lush(草木繁茂的) with green forests and lakes. But, climate change caused the whole place to dry up.
Now there are still many kinds of plants in the Sahara Desert, like grass, shrubs(灌木丛) and trees. In the Sahara Desert, people can find some kinds of animals, like hares, deer and foxes. The Sahara Desert also has over 300 kinds of birds.
There are only a small number of people living in the Sahara Desert. Because of the bad weather in the desert, they often move from one place to another.
回答下面五个问题，每题答案不超过6个词。
66. What is on the west of the Sahara Desert
67. What was the Sahara Desert like in the past
68. Why do the people in the Sahara Desert often move from one place to another
69. How much percent of of the Sahara Desert is covered by sand and dunes
70. What do you think of the climate in in the Sahara Desert
六、书面表达(共1小题，计20分)
海洋环境对全球生态起着至关重要的作用，我们也应该为保护海洋生态环境做一些力所能及的事情。假如你是张华，你们学校的海洋社团正在组织以“Save the ocean animals, save ourselves”为主题的活动，请你根据下面要点，写一篇文章，呼吁大家保护海洋生物。
1. 要点：1)What’s the situation of the ocean animals
2) Why do people help the ocean animals
3) How do people protect the ocean animals
2. 要求：
1).包含所给要点，可适当发挥。
2). 80词左右 (开头和结尾已给出，不计入总词数)。
My dear friends,
I’m Zhang Hua, a member of the Ocean Club. I’m here to share something about the ocean animals with you ______________________________________________________________________________________
Let’s work together for a better earth!
参考答案
一、单项选择(共10小题，每小题1分, 计10分)
1-5 ACBBA 6-10 DBAAC
二、完形填空(共15小题，每小题1分, 计15分)
11-15 CABDC 16-20 CACDA 21-25 BACBD
三、阅读理解(共20小题;每小题2分, 计40分)
26-28 AAC 29-31 BBD 32-35 BBCD
36-40 BCCDD 41-45 BDFEC
四、词汇运用
（一）阅读下列短文，从方框中选出适当的词或短语并用其适当形式填空，使短文通顺，意思完整，每词或短语限用一次。（共10小题;每小题1.5分, 计15分）
46. feels like 47. some 48. more 49. travel 50.water
51. still 52. drink 53. hair 54. useful 55.think about
（二）根据短文内容及首字母提示，填写所缺单词，使其意思完整。（共10小题;每小题1分, 计10分）
56. found 57. really 58.learn 59. information 60. but
61. colors 62. themselves 63.move 64. arms 65. think
五、阅读并回答问题。（共5小题，每小题2分，计10分）
66. The Atlantic Ocean.
67. Lush with green forests and lakes.
68. Because of the bad weather.
69. Over 25%.
70. Awful/ Bad/ Terrible...(言之有理即可）
六、书面表达(共1小题，计20分)
例文：
My dear friends,
I’m Zhang Hua, a member of the Ocean Club. I’m here to share something about the ocean animals with you.
Ocean animals are in great danger, and pollution is the main reason. Many industrial wastes are poured into the sea, making the water dirty. So they lose their homes and find it hard to survive. Ocean animals are very important to us—they are like our sea friends. We can protect them in simple ways. We should use less plastic to cut down pollution and stop overfishing, too. Let’s take action now to save them. After all, saving ocean animals means saving ourselves.
Let’s work together for a better earth!

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