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2024版人教英语八上Unit4 Amazing Plants and Animals单元知识点练习题
一、单项选择
1. The redwood trees are some of __________ tallest living things on earth.
A. a B. an C. the D. /
2. Bees are very important because about 80% of the plants in the world can't grow __________ their pollination.
A. with B. without C. for D. in
3. The cheetah is __________ fastest land animal.
A. a B. an C. the D. this
4. The blue whale is __________ than 25 elephants.
A. heavy B. heavier C. heaviest D. the heaviest
5. Swifts can fly faster than 100 miles __________ hour.
A. a B. an C. the D. /
二、用所给词的适当形式填空
1. The baobab tree is one of the __________ (strange) - looking trees in the world.
2. Koalas are good at __________ (climb) trees.
3. Among all the animals, I think the octopus is __________ (amazing).
4. Plants grow __________ (well) in spring than in winter.
5. The swifts use their saliva __________ (build) their nests.
三、句型转换
1. The panda is very cute. (改为感叹句)
__________ __________ the panda is!
2. The ginkgo tree is very old. (用one of the... 最高级改写句子)
The ginkgo tree is one of __________ __________ trees.
3. The monkey bread tree can hold 1,000 gallons of water. (对划线部分提问)
__________ __________ water can the monkey bread tree hold
4. The plants grow well in suitable environments. (改为最高级形式)
The plants grow __________ __________ in suitable environments in a year.
5. The hummingbird can fly backwards. (改为一般疑问句)
__________ the hummingbird __________ backwards
四、阅读理解
阅读短文，选择正确答案
Amazing plants and animals are all around us. Take the bamboo as an example. It grows very fast and can reach a great height. Some bamboo species are the tallest among grasses.
When it comes to animals, the chameleon is really amazing. It can change its color to match its surroundings. This helps it hide from enemies and catch prey. Another amazing animal is the hummingbird. It can fly backwards and hover in the air, which is a unique skill among birds. Plants like the Venus flytrap have special abilities too. It can catch insects with its leaves. These amazing plants and animals show us the wonders of nature.
1. What can the Venus flytrap do
A. It can change its color.
B. It can grow very fast.
C. It can catch insects.
D. It can fly backwards.
2. Why is the chameleon amazing
A. Because it can grow very tall.
B. Because it can change its color to match its surroundings.
C. Because it can fly backwards.
D. Because it can catch birds.
3. What unique skill does the hummingbird have
A. It can grow very fast.
B. It can change its color.
C. It can fly backwards and hover in the air.
D. It can catch insects.
4. What are the common points of these amazing plants and animals
A. They can all change colors.
B. They can all fly.
C. They all have special abilities.
D. They all live in the sea.
5. What's the best title for the passage
A. Amazing Plants and Animals
B. The Wonders of the Sea
C. The Tallest Plants
D. The Fastest Animals
五、写作
以“The Most Amazing Animal/Plant”为题，写一篇短文介绍一种你认为最神奇的动物或植物，80词左右。
答案
一、单项选择
1. C 。形容词最高级前需加定冠词the ，“the tallest”表示“最高的”。
2. B 。根据句意，世界上约80%的植物没有蜜蜂授粉就无法生长，“without”表示“没有”。
3. C 。形容词最高级前加the ，“the fastest”表示“最快的”。
4. B 。句中有“than”，用比较级，“heavier”是“heavy”的比较级。
5. B 。“hour”以元音音素开头，用不定冠词an ，“an hour”表示“一小时”。
二、用所给词的适当形式填空
1. strangest 。“one of the + 形容词最高级 + 名词复数”表示“最……之一”，“strange”的最高级是“strangest”。
2. climbing 。“be good at doing sth.”表示“擅长做某事”，所以用“climbing”。
3. the most amazing 。“among all...”表示在三者或三者以上中，用最高级，“amazing”的最高级是“the most amazing”。
4. better 。句中有“than”，用比较级，“well”的比较级是“better”。
5. to build 。“use sth. to do sth.”表示“用某物做某事”，所以用“to build”。
三、句型转换
1. How cute 。感叹句结构“How + 形容词 + 主语 + 谓语！”，此处对“cute”感叹，用“How cute”。
2. the oldest 。“one of the + 形容词最高级 + 名词复数”，“old”的最高级是“oldest”。
3. How much 。对不可数名词“water”的量提问，用“How much”。
4. (the) best 。“well”的最高级是“best”，最高级前可加the 也可省略。
5. Can; fly 。句中有情态动词“can”，变一般疑问句将“can”提前，动词用原形。
四、阅读理解
1. C 。根据文中“Plants like the Venus flytrap have special abilities too. It can catch insects with its leaves.”可知，捕蝇草能捕捉昆虫，选C。
2. B 。根据文中“the chameleon is really amazing. It can change its color to match its surroundings.”可知，变色龙神奇是因为它能改变颜色与周围环境匹配，选B。
3. C 。根据文中“Another amazing animal is the hummingbird. It can fly backwards and hover in the air”可知，蜂鸟独特的技能是能倒飞和在空中盘旋，选C。
4. C 。文中介绍的动植物都有各自特殊的能力，如竹子长得快，变色龙变色，蜂鸟倒飞，捕蝇草捕虫等，选C。
5. A 。文章主要介绍了一些神奇的动植物，A选项“Amazing Plants and Animals”最适合做标题。
五、写作
The Most Amazing Animal
The most amazing animal in my eyes is the octopus. It has eight long arms which can change their shape easily. The octopus can also change its color and texture to blend in with the environment, making it almost invisible to its enemies. What's more, it is very intelligent. It can solve simple puzzles and even open jars to get food. With these unique abilities, the octopus truly stands out in the animal kingdom.

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