Unit4 Section A同步练习-2025-2026学年人教版英语八年级上册

Unit4 Section A 一、选出划线部分发音不同的一项 学科网（北京）股份有限公司 学科网（北京）股份有限公司 1. ( ) A. stay B. name C. cat D. Kate 2.( ) A.toy B. boy C. dog D.enjoy 3. ( ) A.glad B. glue C.globe D.green 4.( ) A.cross B. cry C. create D. cake 5. ( ) A.mice B. fly C. cry D. yellow ( )1.A.say B.chair C.play D.wait ( )2.A.high B.kite C.night D.listen ( )3.A.enjoy B.toy C.boy D.doing ( )4.A.climb B.cry C.club D.clean ( )5.A.fly B.shy C.yet D.sky 二、写出下列单词的最高级形式 fast large big slim popular good little badly heavy shy lazy outgoing hard-working serious interesting 三、根据中文提示填写单词, 注意用适当形式。 1. The folding (扇子) has a painting of (竹子) on it. 2. I think (苔藓)is one of the oldest plants in the world. 3. I visited the (红木) forests in California several times. 4. The bird’s (翅膀)is broken, so it can’t fly. 5. Some (青蛙) jumped into the water just now. 6. Yunnan is one of the most beautiful (省) in China. 7. He picked some fresh red (玫瑰) from the garden this morning. 8. The singer is very (受欢迎的) among young people. 9. The man’s (美德) encouraged many people to follow him as an example. 10. There are a lot of (蝴蝶) in the park. 四、用所给词的适当形式填空 1. The little boy comes from (African). 2. Who do you think is (funny) , Mark, Claire, or Sue? 3. Doing chores together is one of the (important) things for a happy family. 4. This is one of the (exciting) films of this year. 5. Of the three parks, this one is the (far) from my home. 6. Jack does things (careful) in his class. 7. (actual), he practices the piano every evening. 8. Almost every woman want to lose (weigh). 9. The plane finally (land) at the airport safely. 10. The famous actor (appear) on the stage several minutes ago. 11. My mom often cooks soup with fresh bamboo s______ in spring—it’s really delicious. 12. This small bag looks simple, but a______ it has many useful pockets.​ 13. A pair of scissors is a necessary ______ （工具）for cutting paper in art class.​ 14. When the sun comes out, colorful butterflies will a______ in the garden.​ 15. Ne Zha 2 is one of the most p______ films in the world.​ 16. The chair in my room is made of b______—it’s light but strong. 17．The (fold) table can be easily stored when not in use. 18．Shanghai is one of the (popular) cities in the world. 19．His stories are always filled with truth and human (good). 20．Bob 75kg now, so he has to do some exercise to lose . (weigh) 21．These three came from .(African) 22．Please feel free (visit) us here. 23．After Hou Yi s the ninth sun, people’s life became normal again. 24． (actual), the city walk is a new type of travelling. 25．We can’t judge (判断) a book from its cover, and we can’t choose a friend from his (appear). 26．I think elephants are the biggest animals on l . 5、 用所给词的适当形式填空 （A） The animal world is full of interesting differences. Let's 1. _______(compare) some animals. I think peacocks are 2._____(beautiful) than parrots, but butterflies are 3._______ (beautiful) of all. When we talk about size, elephants are 4._____（big） and heavier than horses. However, the blue whale is the 5._____(large) and 6.____(heavy) animal in the world. What about speed? Cheetahs run much 7._____(fast) than lions. In fact, they are the fastest8._______(run) on land. But some animals are quite small. A mouse is much smaller than a cat, and a ladybug is even smaller. A rabbit's tail is shorter than a 9.______(cat). So, some animals are big, and some are small. Some are fast, and some are slow. This 10.______(make) our world more wonderful. (B) The Grand Canal（大运河） is one 1. the greatest engineering achievements （工程成果）in ancient China. It is the world's 2. _______ (long) canal. Starting in Beijing and ending in Hangzhou, it connects many important rivers For hundreds of years, it was the 3. ________ (busy) waterway （水路）in China. Many towns along its banks became richer 4. ________of it. It is also among the world’s largest man-made waterways. For ancient people, building such 5. ________ big canal was not easy. They didn’t have modern machines, so they used simple 6. ________ (tool) like shovels（铲子） and baskets. Every year, many 7. ________ (activity) are held along the canal to remember this great project. Today, it is still one of the most 8. ________ (use) canals too. People use it to carry goods and take trips. It’s never getting 9. ________ (bad) . Instead, it helps more people travel and do business. Every year, more and more visitors come 10. (see) it. They all say it’s a treasure of China. 六、选词填空。 alone much old usually danger biggest twentieth during best situation hundreds Amur tigers are interesting animals. They are the 35.__________ cats in the world. A full-grown Amur tiger can be over 600 pounds. They live 36.__________. Tigers also have very good eyesight and hearing. Their eyesight is 37.__________ better than humans’. Amur tigers live in the forests in the Russian Far East and Northeastern China. They have a thick yellow coat. It keeps them warm 38.__________ the long, cold winters in the forest! Amur tigers 39.__________ hunt at night. Sometimes these tigers travel 40.__________ of kilometers to look for things to eat. They hunt small animals living in the forest. They also hunt smaller kinds of bears. A hungry Amur tiger can eat more than 50 pounds in one night. Today, Amur tigers are in 41.__________. The number of Amur tigers dropped fast at the beginning of the 42.__________ century. Countries like Russia and China then began to protect these big cats. After that, the number of Amur tigers grew. Scientists believe there are about 540 Amur tigers living in the wild today. These big cats are still in a difficult 43.__________. We should try to save these tigers. If we try our 44.__________, the tigers may live in peace in the future. 七、补全对话 Luke:Harry,what are you doing now? Harry:1 . Luke:What’s the book about? Harry:It’s about animals in danger. Luke:2 . Harry:Of course.It tells something about wild animals.3 . Luke:That’s so bad.Maybe we should do something to help them. Harry:4. What about making a poster(海报) about endangered animals?  Luke:Good idea.5 . Harry:OK.Let’s do it now. A.I don’t think so. B.I’m reading a book. C.I can’t agree with you more. D.Can you tell me more about it? E.Let’s search for more information online. F.Are there many animals in the wild now? G.They don’t have enough places to live or enough food to eat. 八、阅读理解 （A） Snakes are reptiles(爬行动物). They live in many places around the world but not in very cold places like Antarctica. There are over 3,000 kinds of snakes. Snakes are different in size. The smallest one is about 10 cm long. It's very thin, like a thread, The biggest snakes can grow up to 6metres or more, They are really strong. Snakes don't have legs, but they can move fast, They use their long bodies to crawl(行). Some snakes can climb trees or swim. Their way of moving helps them catch food and stay safe. Most snakes eat small animals, like mice, birds, and insects. They eat in a special way. They can open their mouths very wide, wider than their heads. This lets them swallow(吞咽) their food whole. After a big meal, a snake may not eat for a long time. Snakes are important in nature. They help keep the number of small animals in check(在控制中). If there were no snakes, there would be too many mice and other small animals, and that would be bad for the environment. But many snakes are in danger because people are destroying(毁灭) their homes and killing them.We should protect these amazing animals. ( )1.How long can the biggest snakes grow? A. About 10 cm. B. Up to 6 metres or more. C.Around 3 metres. D. Exactly 6 metres. ( )2. If a snake has just had a big meal, what can we infer? A. It will start looking for the next meal soon. B. It will move around more actively. C. It won't need to eat for a while. D. It will grow much longer. ( )3. Why should we protect snakes according to the passage? A. Because they are very cute animals. B. Because they can bring good luck. C. Because they help keep the balance of nature. D. Because they are easy to take care of. （B） How Do Trees Help Fight Air Pollution? Trees are more than just beautiful plants—they are nature’s best helpers in fighting air pollution. Many people don’t know that trees can clean the air we breathe every day. First, trees absorb harmful gases like carbon dioxide. Through photosynthesis, they turn these gases into oxygen, which is necessary for all living things. A single mature tree can produce enough oxygen for four people in one day. Second, trees trap dust and small particles from the air. Their leaves and bark act like a filter, catching dirt before it reaches our lungs. For example, in busy cities, streets lined with trees have 10—20% less air pollution than those without. Third, trees even reduce the level of noise pollution. The thick leaves and branches can absorb sound waves, making the environment quieter. However, trees need our protection, too. Every year, millions of trees are cut down, which weakens their ability to fight pollution. We should plant more trees and take care of the existing ones. After all, protecting trees is protecting ourselves and our planet. 1．What do trees do to help fight air pollution according to Paragraph 2 and Paragraph 3? A．They produce carbon dioxide. B．They absorb harmful gases and trap dust. C．They increase noise in cities. D．They stop growing in summer. 2．Which of the following best shows the structure of the passage? A．①—②—③④—⑤ B．①—②③④—⑤ C．①—②—③④⑤ D．①—②③④⑤ 3．According to the passage, why do trees need our protection? A．Because they produce too much oxygen. B．Because many trees are cut down every year. C．Because they can’t grow in cities. D．Because they are afraid of rain. 4．What can we infer the writer might talk about next if the passage continues? A．How to cut down trees properly. B．Different types of harmful gases. C．Specific ways to protect and plant trees. D．The history of photosynthesis. 九、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 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. 1．What is the largest giant among North America’s trees? 2．What are redwoods most special for? 3．Where can you find a coast redwood? 4．What keeps the trees moist all year round? 5．What are the redwoods’ protection systems? $