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Unit 4 Amazing Plants and Animals
课时1 Section A (1a—1d) 分层作业
核心知识速记
01基础达标 03拓展培优
02能力提升 04思维进阶
单词默写
_________ /m s/n. 苔藓
_________ / redw d/n. 红杉；红木
_________ / t i t /n. 猎豹
二、词组默写
_________ 使某物……样的
_________ 开始测试
_________ 一起带……去
_________跑得最快
_________同意某人
_________最古老的植物之一
_________继续
_________有一天
三、按要求完成句子
1. 蓝鲸是世界上最大的动物。
The blue whale is the ______ ______ in the world.
猎豹跑得最快。
The cheetah ______ the ______.
苔藓是世界上最古老的植物之一。
Moss is one of the ______ ______ in the world.
红杉树是世界上最高的树。
The redwood tree is the ______ ______ in the world.
我希望有一天能看到一些红杉树。
I ______ ______ see some redwood trees someday.
四 、用括号内所给词的适当形式填空
1．There are many (amaze) facts about numbers.
2．Jinsha Paradise Walk is one of (large) shopping centers in our city.
3． For Ma, classical poetry is the (beautiful) language in the world.
4．Who is (heavy) of the ten young men
5．The winter solstice (冬至) is (short) day of the year.
五、阅读短文，从方框中选择适当的词或短语并用其正确的形式填空（每词限用一次）。
The blue whale is the largest animal in the world. It is also the heaviest animal on earth, weighing more than 150 tons. The 1.________ runs the 2.________ among land animals, reaching speeds of up to 120 kilometers per hour. Many people think it is the 3.________ animal in the world with its sleek body and spotted coat. Moss is 4.________ the oldest plants in the world. It 5.________ on earth around 470 6.________ years ago, much earlier than many other plants. The redwood tree is the tallest tree in the world, some growing over 100 meters high. I hope I can see some 7.________ when I travel to California.
六、阅读理解。
Rafflesia arnoldii
People discovered this flower in Sumatra in 1818, and it is considered to be the largest flower in the world. It can grow up to one metre in diameter (直径), and weigh as much as 25 pounds. Though Rafflesia arnoldii is a large flower, it is very difficult to find. It takes 9 to 21 months for the plant to develop, but its flower lasts for only five days. The flower can reach up to 20 feet tall and 16 feet wide, but it smells awful.The dancing plant
Have you ever watched a plant move all by itself The dancing plant, also known as the telegraph plant, actually moves its leaves. It can grow up to 2 metres high. The period of its movements is from 3 to 5 minutes, and when all of the leaves move, it creates a very cool effect. The plant lives in Asia and can also be found in the South Pacific. It is pretty wonderful. This plant is famous for being a favourite of Charles Darwin, and it is important in his book The Power of Movement in Plants.
1．How does Rafflesia arnoldii smell
A．Fresh. B．Sweet. C．Terrible. D．Wonderful.
2．How high can the dancing plant grow up to
A．One meter. B．Two meters. C．Sixteen feet. D．Twenty feet.
3．In which unit can we find this text
A．Unit 1 Exciting Sports. B．Unit 2 Amazing Nature.
C．Unit 3 Colourful Cultures. D．Unit 4 Interesting Activities.
七、阅读还原。
Camels are amazing animals. They aren’t the most beautiful animals in the world. But they are certainly the most useful animals in hot areas such as North Africa and the Middle East. They usually help people carry things. 4
Do you know that Arabian camels are not the same as Asian camels If you take a close look at them, you will find that Arabian camels are dromedaries. That is to say you can only find one hump (驼峰) on its back. But Asian camels are Bactrians—they have two humps. 5 Isn’t that interesting
An adult camel is about 2 meters tall and the weight of each is about 500 kilograms. 6 And its feet are big and soft.
Most of the camels can live for about 40 years, but usually they don’t have to work when they are about 25.
Camels mainly eat grass, leaves and bushes. They can walk for more than 600 kilometers even if they are not given water. 7 But when there is water, they can drink as much as 90 liters. Camels walk slowly. They don’t like running because it’s too hot. But if they need, they can run at 20 kilometers an hour.
So, next time, when you travel in a desert, if a man says, “Look, here comes a ship. Do you want to take a ride ” 8
A．Its legs are long.
B．Can you understand what the “ship” is
C．Now I’d like to tell you something about them.
D．They look similar to each other.
E．They are the two main kinds in the world.
F．They only need to drink water every seven days.
G．They don’t need to drink water at all.
八、完形填空。
As we know, rainforests are the lungs of the earth. They 9 about 2% of the earth’s surface. Half of the animals on Earth live in rainforests. The sloth (树懒) is one of them.
The sloth lives 10 the tree over 30 meters from the ground. It is the most interesting animal I know. It looks like a panda or a monkey. It always moves very slowly, 11 when it is in danger. But you can’t imagine (想像) it is good at swimming. When it is in the 12 it can swim like a big fish.
Many people think it is a kind of 13 animal. Why The sloth needs to 14 15 to 20 hours sleeping in the tree in the daytime. Yes, it does 15 but sleeping during the daytime. Maybe that’s the 16 why people think it’s lazy. When does it eat meals Of course at night. It 17 leaves of the trees. It eats nothing else. 18 it can’t live without forests.
The sloth is a kind of rare (珍稀) animal. If we can’t protect it well, it will die out one day.
9．A．provide B．share C．cover
10．A．in B．on C．with
11．A．even B．still C．also
12．A．forest B．river C．land
13．A．clean B．stupid C．lazy
14．A．cost B．spend C．take
15．A．something B．anything C．nothing
16．A．reason B．introduction C．advice
17．A．feeds on B．cleans up C．plays with
18．A．But B．So C．And
任务型阅读。
From a seed (种子) that is smaller than a pea grows the tallest of trees. The coast redwood is the largest giant among North America’s trees.
redwoods
Redwoods are most special for two reasons. The first is their size. Imagine standing next to a tree that is the height of a 30-story building. The second is their age. Redwoods commonly make it to 600 years or so. It has been found that some trees are more than 2000 years old.
To find a coast redwood, you have to go to Oregon or California. A coastline about 450 miles long and up to 35 miles wide is home to the redwoods. Coast redwoods don’t grow anywhere else in the world, because the coast of the Pacific Ocean provides a special environment for the redwoods. Cool, moist (湿润的) air comes off the ocean and keeps the trees moist all year round, which is important because almost all of the area’s rain falls between October and May. During the dry summer months, the trees depend on moisture from the thick fog that often hangs over the coast.
Redwoods have their own protection systems. Most of redwoods’ branches and leaves are high up on the tree. This keeps them safe from forest fires. Also, the bark (树皮) of a redwood is as much as 12 inches thick. The thick covering protects the lower part of the tree from fire damage. Besides, redwoods are safe from insect damage (虫害) because the wood contains a bitter-tasting (苦味的) chemical called tannin.
If you ever get a chance, visit a redwood forest, and imagine who might camp there a thousand years ago. Look upward and just imagine how high the trees might grow if we protect them.
19．What is the largest giant among North America’s trees
20．What are redwoods most special for
21．Where can you find a coast redwood
22．What keeps the trees moist all year round
23．What are the redwoods’ protection systems Unit 4 Amazing Plants and Animals
课时1 Section A (1a—1d) 分层作业
核心知识速记
01基础达标 03拓展培优
02能力提升 04思维进阶
单词默写
_________ /m s/n. 苔藓
_________ / redw d/n. 红杉；红木
_________ / t i t /n. 猎豹
【答案】moss; redwood; cheetah
二、词组默写
_________ 使某物……样的
_________ 开始测试
_________ 一起带……去
_________跑得最快
_________同意某人
_________最古老的植物之一
_________继续
_________有一天
【答案】1. make sth. adj. 2. start a test 3. take...together... 4. run fastest 5. agree with 6. one of the oldest plants 7. go on 8. one day
三、按要求完成句子
1. 蓝鲸是世界上最大的动物。
The blue whale is the ______ ______ in the world.
猎豹跑得最快。
The cheetah ______ the ______.
苔藓是世界上最古老的植物之一。
Moss is one of the ______ ______ in the world.
红杉树是世界上最高的树。
The redwood tree is the ______ ______ in the world.
我希望有一天能看到一些红杉树。
I ______ ______ see some redwood trees someday.
【答案】1. largest animal 2. runs; fastest 3. oldest plants 4. tallest tree 5. hope to
四 、用括号内所给词的适当形式填空
1．There are many (amaze) facts about numbers.
2．Jinsha Paradise Walk is one of (large) shopping centers in our city.
3． For Ma, classical poetry is the (beautiful) language in the world.
4．Who is (heavy) of the ten young men
5．The winter solstice (冬至) is (short) day of the year.
【答案】1．amazing 2．the largest 3．most beautiful 4．the heaviest 5．the shortest
五、阅读短文，从方框中选择适当的词或短语并用其正确的形式填空（每词限用一次）。
The blue whale is the largest animal in the world. It is also the heaviest animal on earth, weighing more than 150 tons. The 1.________ runs the 2.________ among land animals, reaching speeds of up to 120 kilometers per hour. Many people think it is the 3.________ animal in the world with its sleek body and spotted coat. Moss is 4.________ the oldest plants in the world. It 5.________ on earth around 470 6.________ years ago, much earlier than many other plants. The redwood tree is the tallest tree in the world, some growing over 100 meters high. I hope I can see some 7.________ when I travel to California.
【答案】cheetah; fastest; most beautiful; one of; appeared; million; one day
六、阅读理解。
Rafflesia arnoldii
People discovered this flower in Sumatra in 1818, and it is considered to be the largest flower in the world. It can grow up to one metre in diameter (直径), and weigh as much as 25 pounds. Though Rafflesia arnoldii is a large flower, it is very difficult to find. It takes 9 to 21 months for the plant to develop, but its flower lasts for only five days. The flower can reach up to 20 feet tall and 16 feet wide, but it smells awful.The dancing plant
Have you ever watched a plant move all by itself The dancing plant, also known as the telegraph plant, actually moves its leaves. It can grow up to 2 metres high. The period of its movements is from 3 to 5 minutes, and when all of the leaves move, it creates a very cool effect. The plant lives in Asia and can also be found in the South Pacific. It is pretty wonderful. This plant is famous for being a favourite of Charles Darwin, and it is important in his book The Power of Movement in Plants.
1．How does Rafflesia arnoldii smell
A．Fresh. B．Sweet. C．Terrible. D．Wonderful.
2．How high can the dancing plant grow up to
A．One meter. B．Two meters. C．Sixteen feet. D．Twenty feet.
3．In which unit can we find this text
A．Unit 1 Exciting Sports. B．Unit 2 Amazing Nature.
C．Unit 3 Colourful Cultures. D．Unit 4 Interesting Activities.
【答案】1．C 2．B 3．B
【导语】本文介绍了两种植物——大王花和跳舞草。
1．细节理解题。根据“The flower can reach up to 20 feet tall and 16 feet wide, but it smells awful.”可知，它气味难闻。故选C。
2．细节理解题。根据“It can grow up to 2 metres high.”可知，它可以长到2米高。故选B。
3．推理判断题。本文介绍了两种植物，我们可以在第二单元“神奇的大自然”中找到这篇文章。故选B。
七、阅读还原。
Camels are amazing animals. They aren’t the most beautiful animals in the world. But they are certainly the most useful animals in hot areas such as North Africa and the Middle East. They usually help people carry things. 4
Do you know that Arabian camels are not the same as Asian camels If you take a close look at them, you will find that Arabian camels are dromedaries. That is to say you can only find one hump (驼峰) on its back. But Asian camels are Bactrians—they have two humps. 5 Isn’t that interesting
An adult camel is about 2 meters tall and the weight of each is about 500 kilograms. 6 And its feet are big and soft.
Most of the camels can live for about 40 years, but usually they don’t have to work when they are about 25.
Camels mainly eat grass, leaves and bushes. They can walk for more than 600 kilometers even if they are not given water. 7 But when there is water, they can drink as much as 90 liters. Camels walk slowly. They don’t like running because it’s too hot. But if they need, they can run at 20 kilometers an hour.
So, next time, when you travel in a desert, if a man says, “Look, here comes a ship. Do you want to take a ride ” 8
A．Its legs are long.
B．Can you understand what the “ship” is
C．Now I’d like to tell you something about them.
D．They look similar to each other.
E．They are the two main kinds in the world.
F．They only need to drink water every seven days.
G．They don’t need to drink water at all.
【答案】4．C 5．E 6．A 7．F 8．B
【导语】本文介绍了骆驼耐旱，善载物，是沙漠地区重要的交通工具。
4．根据“Do you know that Arabian camels are not the same as Asian camels ”可知，此处引出对骆驼的介绍，C选项“现在我想告诉你一些关于它们的事情。”符合，故选C。
5．根据“That is to say you can only find one hump (驼峰) on its back. But Asian camels are Bactrians—they have two humps.”可知，这里介绍了两种骆驼，E选项“它们是世界上最主要的两种。”符合，故选E。
6．根据“And its feet are big and soft.”可知，此处介绍“骆驼”的样子，A选项“它的腿很长。”符合，故选A。
7．根据“But when there is water, they can drink as much as 90 liters.”可知，此处与“喝水”有关，F选项“他们只需要每七天喝一次水。”符合，故选F。
8．根据“here comes a ship”可知，此处与“ship”有关，B选项“你能理解‘船’是什么吗？”符合，故选B。
八、完形填空。
As we know, rainforests are the lungs of the earth. They 9 about 2% of the earth’s surface. Half of the animals on Earth live in rainforests. The sloth (树懒) is one of them.
The sloth lives 10 the tree over 30 meters from the ground. It is the most interesting animal I know. It looks like a panda or a monkey. It always moves very slowly, 11 when it is in danger. But you can’t imagine (想像) it is good at swimming. When it is in the 12 it can swim like a big fish.
Many people think it is a kind of 13 animal. Why The sloth needs to 14 15 to 20 hours sleeping in the tree in the daytime. Yes, it does 15 but sleeping during the daytime. Maybe that’s the 16 why people think it’s lazy. When does it eat meals Of course at night. It 17 leaves of the trees. It eats nothing else. 18 it can’t live without forests.
The sloth is a kind of rare (珍稀) animal. If we can’t protect it well, it will die out one day.
9．A．provide B．share C．cover
10．A．in B．on C．with
11．A．even B．still C．also
12．A．forest B．river C．land
13．A．clean B．stupid C．lazy
14．A．cost B．spend C．take
15．A．something B．anything C．nothing
16．A．reason B．introduction C．advice
17．A．feeds on B．cleans up C．plays with
18．A．But B．So C．And
【答案】
9．C 10．A 11．A 12．B 13．C 14．B 15．C 16．A 17．A 18．B
【导语】本文是一篇说明文，介绍了热带雨林中一种独特的动物——树懒。
9．句意：众所周知，雨林是地球之肺，覆盖了地球表面的2%。
provide提供；share分享；cover覆盖。根据上文“As we know, rainforests are the lungs of the earth”及常识可知，热带雨林覆盖了地球表面的2%。故选C。
10．句意：树懒生活在离地面30多米高的树上。
in在……里；on在……上；with和。根据下文“the tree over 30 meters from the ground”提示，此处说的是树懒生活在树上。in the tree意为“在树上”，指外界的事物在树上，而非树木自身生长；on the tree意为“在树上”，指树自身所有，长在树上的东西。故选A。
11．句意：它总是移动得很慢，即使处于危险之中也不例外。
even甚至、即使；still仍然；also也。根据上文“It always moves very slowly”可知，树懒总是慢慢地移动，即使遇到了危险，也不会有所改变。故选A。
12．句意：当树懒在河里的时候，它可以像一条大鱼一样游泳。
forest森林；river河流；land陆地。根据上文“But you can’t imagine (想像) it is good at swimming”可知，树懒擅长游泳，在河里可以像一条大鱼一样游泳。故选B。
13．句意：许多人认为树懒是一种懒惰的动物。
clean干净的；stupid愚蠢的；lazy懒惰的。根据下文“The sloth needs to...15 to 20 hours sleeping in the tree in the daytime”可知，树懒白天长时间地睡觉，会让人觉得它们很懒。故选C。
14．句意：树懒白天需要在树上睡15到20个小时。
cost表示某物花费多少钱，主语为物；spend指花费时间和金钱，只能用人作主语；take花费，其固定搭配为It takes/ took sb. some time to do sth.。句子主语为“sloth”，故应用动词spend，故选B。
15．句意：是的，它白天除了睡觉什么也不做。
something某些事物；anything任何事物；nothing没有什么。根据上文“The sloth needs to spend 15 to 20 hours sleeping in the tree in the daytime”可知，树懒白天需要在树上睡15到20个小时，所以白天除了睡觉什么也不做了。故选C。
16．句意：也许这就是为什么人们认为它很懒惰的原因。
reason原因；introduction介绍；advice建议。根据上文“The sloth needs to spend 15 to 20 hours sleeping in the tree in the daytime. Yes, it does nothing but sleeping during the daytime”可知，树懒白天需要在树上睡15到20个小时，所以白天除了睡觉什么也不做了，这就是人们认为它很懒惰的原因。故选A。
17．句意：它以树叶为食。
feeds on以……为食；cleans up清理；plays with和……玩。根据下文“It eats nothing else”可知，树懒只以树叶为食。故选A。
18．句意：所以它离不开森林。
But但是；So所以；And和。根据上文“It eats nothing else”可知，树懒只以树叶为食，所以它离不开森林。故选B。
任务型阅读。
From a seed (种子) that is smaller than a pea grows the tallest of trees. The coast redwood is the largest giant among North America’s trees.
redwoods
Redwoods are most special for two reasons. The first is their size. Imagine standing next to a tree that is the height of a 30-story building. The second is their age. Redwoods commonly make it to 600 years or so. It has been found that some trees are more than 2000 years old.
To find a coast redwood, you have to go to Oregon or California. A coastline about 450 miles long and up to 35 miles wide is home to the redwoods. Coast redwoods don’t grow anywhere else in the world, because the coast of the Pacific Ocean provides a special environment for the redwoods. Cool, moist (湿润的) air comes off the ocean and keeps the trees moist all year round, which is important because almost all of the area’s rain falls between October and May. During the dry summer months, the trees depend on moisture from the thick fog that often hangs over the coast.
Redwoods have their own protection systems. Most of redwoods’ branches and leaves are high up on the tree. This keeps them safe from forest fires. Also, the bark (树皮) of a redwood is as much as 12 inches thick. The thick covering protects the lower part of the tree from fire damage. Besides, redwoods are safe from insect damage (虫害) because the wood contains a bitter-tasting (苦味的) chemical called tannin.
If you ever get a chance, visit a redwood forest, and imagine who might camp there a thousand years ago. Look upward and just imagine how high the trees might grow if we protect them.
19．What is the largest giant among North America’s trees
20．What are redwoods most special for
21．Where can you find a coast redwood
22．What keeps the trees moist all year round
23．What are the redwoods’ protection systems
【答案】19．The coast redwood. 20．Their size and age. 21．Oregon or California. 22．Cool, moist air comes off the ocean. 23．Redwoods’ branches, leaves, barks and the bitter-tasting chemical.
【解析】文章主要介绍了红杉树的高大外形和超长树龄，然后介绍了它的生长环境。
19．根据“The coast redwood is the largest giant among North America’s trees.”可知海岸红杉是北美最大的树木。故填The coast redwood.
20．根据“Redwoods are most special for two reasons. The first is their size. ... The second is their age.”可知红杉树因为它们的大小和年龄而特别。故填Their size and age.
21．根据“To find a coast redwood, you have to go to Oregon or California.”可知能在俄勒冈州和加利福尼亚州找到海岸红杉。故填Oregon or California.
22．根据“Cool, moist air comes off the ocean and keeps the trees moist all year round”可知来自海洋的凉爽潮湿的空气使树木一年四季保持湿润。故填Cool, moist air comes off the ocean.
23．根据倒数第二段全段内容可知红杉树的保护系统包括其枝、叶、树皮和苦味的化学物质。故填Redwoods’ branches, leaves, barks and the bitter-tasting chemical.

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