Unit 4 Section A（2a-2d）分层作业 2026-2027学年人教版英语九年级上册

2026年度人教版九年级上册Unit4 Section A（2a-2d）分层作业 A层 基础闯关 Ⅰ. 词汇运用（10小题，用方框内单词适当形式填空，一词只用一次）brain, chain, stable, retell, memorize, tick, mystery, detail, link, picture 1. Our ______ helps us store all kinds of information. 2. A ______ is made of many connected rings. 3. The memory of riding bikes is kept in a ______ area of the brain. 4. Can you ______ the story in your own words after listening? 5. It’s hard to ______ all new words in one day. 6. Please ______ the box if the idea works for you. 7. Scientists are still studying this ______ about human memory. 8. You should pay attention to every small ______ when you compare the two words. 9. You can ______ new knowledge with what you have learned. 10. Try to create a ______ in your mind when you learn a new word. Ⅱ. 完成句子 1. 我们应该好好利用我们的大脑。 We should ______ our brain ______ good use. 2. 新知识最好通过和旧知识关联来记住。 New knowledge is best remembered by ______ it ______ old knowledge. 3. 这两个单词彼此不同。 These two words are ______ ______ each other. 4. 科学家们仍在研究这个奥秘。 Scientists are still ______ ______ this mystery. 5. 你在脑海里为单词构建一幅画面。 ______ a picture for each word in your mind. B层 能力提升 Ⅲ. 单项选择 ( )1. —I often mix some similar words ______. —You should study their differences. A. up B. out C. off D. over ( )2. Professor says knowledge ______ like a chain. A. are B. be C. is D. was ( )3. The more links you create, ______ you will remember. A. much B. more C. the much D. the more ( )4. It is much easier ______ things to buy than to forget skills. A. forget B. to forget C. forgetting D. forgot ( )5. Could you tell me ______ riding bikes is hard to forget? A. what B. why C. where D. who ( )6. You’d better ______ attention to small details. A. pay B. to pay C. paying D. paid ( )7. The memory is probably ______ in a stable brain area. A. store B. stored C. storing D. stores ( )8. At your age, your brain ______ fast. A. develop B. develops C. developed D. developing ( )9. —What’s your ______ for remembering words? —Create pictures in mind. A. tip B. trouble C. secret D. event ( )10. We can learn new things ______ developing our brain. A. for B. with C. by D. at Ⅳ. 完形填空 Some students ask Professor Green questions about memory. Billy wants to know what linking knowledge means. The professor says knowledge is like a __1__. We remember new knowledge best by __2__ it with old knowledge. More links help us remember more. Fu Xing often gets similar words mixed __3__. The professor tells her to watch details and study how words are different __4__ each other. She can also create a picture for each word in her __5__. Peter asks why it is easier to forget shopping things than forget riding bikes. Scientists are still working on this __6__. The memory of riding bikes is probably stored in a more __7__ brain area. Our brain develops fast when we are young. We should __8__ our brain to good use. There are many ways to train our brain, like exercising memory, learning something __9__ or getting enough sleep. If we keep practicing these tips, we can make our memory much __10__. ( )1. A. box B. chain C. picture D. word ( )2. A. linking B. mixing C. ticking D. retelling ( )3. A. out B. off C. up D. over ( )4. A. with B. for C. from D. to ( )5. A. brain B. book C. list D. chain ( )6. A. detail B. mystery C. tip D. event ( )7. A. stable B. mixed C. creative D. new ( )8. A. get B. put C. take D. make ( )9. A. old B. easy C. new D. boring ( )10. A. good B. well C. better D. best C层 拓展培优 Ⅴ. 任务型读写（3小题，取材本课听力原文） Read the conversation between students and Professor Green. Billy asks about linking knowledge. Professor Green says knowledge is like a chain. We remember new knowledge best by linking it with old knowledge. The more links we create, the more we remember. Fu Xing often mixes up words. The professor tells her to pay attention to details and find differences between words. Creating pictures in the mind also helps. Peter wants to know why riding bikes is hard to forget. Scientists are still working on this mystery. This skill memory is stored in a more stable brain area. The professor tells teenagers to put their developing brain to good use. 根据短文内容，回答下列问题。 1. What is knowledge compared to by Professor Green? ________________________________________________ 2. What should we do when we mix some similar words up? ________________________________________________ 3. Why is it hard to forget how to ride a bike according to the text? ________________________________________________ 参考答案 Ⅰ.词汇运用 学科网（北京）股份有限公司 1. brain 2. chain 3. stable 4. retell 5. memorize 6. tick 7. mystery 8. detail 9. link 10. picture Ⅱ.完成句子 1. put; to 2. linking; with 3. different from 4. working on 5. Create Ⅲ.单项选择 答案： 1.A 2.C 3.D 4.B 5.B 6.A 7.B 8.B 9.A 10.C Ⅳ.完形填空 1.B 2.A 3.C 4.C 5.A 6.B 7.A 8.B 9.C 10.C Ⅴ.任务型读写（参考答案） 1. Knowledge is compared to a chain. 2. We should pay attention to details and study how they are different from each other. We can also create a picture for each word in our mind. 3. Because the memory of how to ride a bike is probably stored in a more stable area of our brain. $