Unit 7 welcome & reading 课时作业 2025-2026学年译林版英语八年级上册

Unit 7 The natural world课时作业 Welcome to the unit 一、单词默写。 1. _ / k r l/ n. 珊瑚 2. _ /ri f/ n. 礁 3. _ / pe w n/ n. 企鹅 4. _ / i k s st m/ n. 生态系统 5. _ / re nf r st/ n. 热带雨林 6. _ / kla m t/ n. 气候 2024版 译林英语 8年级上册8A UNIu 8 7._ / r sl nd/ n.草原 8. _/ dez t/沙漠 1 / 7 学科网(北京)股份有限公司 学科网(北京)股份有限公司 二、翻译句子 1. 热带雨林地球上一半以上的动植物的家园。 _ _ _ _ _ _ of the types of animals and plants on earth. 2. 你知道关于生态系统的有趣事实吗? Do you know _ _ _ about _? 3. 并且昼夜温差极大。 And the_ _ _ between day and night is _. 4. 沙漠的气候非常恶劣,只有少数动植物能够在那里存活。 The _ in deserts is _ _ _only a few animals and plants can live there. 三 、单项选择。 1.Lixia, or the Start of Summer, is a time when the temperature increases quickly with heavier _. A. rainfall B. weight C. attention D. growth 2.—Daddy, the Mid-Autumn Festival is coming. Could you please tell me _ for grandparents? —You can buy some mooncakes, fruit and flowers for them. A. how to buy B. what to buy C. where to buy D. when to buy 3.We should do everything we can _ the birds _ danger. A. to protect; away B. protected; from C. protecting; in D. to protect; in 4.The climate in deserts is really awful. The deserts are dry,_ some plants keep water in their leaves, _many animals there get water from the desert plants. A.so; so B.so; and C. and; so D. but; and 5. —Giving others a helping hand not only helps us make friends but also makes us happy. —_. I'll try my best to help others. A. That's all right B. That's true C. It's my pleasure D. Don't mention it 四,首字母 Our world is full of amazing natural wonders. They are not made by humans,but shaped by nature over 1.m_ of years. Let's learn about three wonderful ones. First,there's the Grand Canyon in the US. It's a huge valley with red and orange 2.r_. The Colorado River has been carving the rocks for over 6 million years,making the canyon 3.d_ and wide. When you stand on its edge,you can see layers of rock that tell stories of the Earth's past. Many people visit it every year to hike or take photos. Next is the Great Barrier Reef in Australia. It's the 4.l_ coral reef system in the world,made of tiny living things called corals. The reef is full of 5.c_ fish,turtles and other sea animals—like a busy "underwater city". You can swim or dive there to see its beauty,but it needs our 6.p_ because pollution harms it. The third one is Victoria Falls,between Zambia and Zimbabwe in Africa. Locals call it "The Smoke That Thunders" 7.b_ when water falls down the 108﹣meter cliff(悬崖),it makes a loud sound and lots of mist(雾气). The waterfall is 8.s_ big that you can see the mist from kilometres away. It's a great place to watch the powerful water and 9.f_ nature's strength. These natural wonders 10.s_ how beautiful and powerful our planet is. We should love and protect them so they can stay amazing for future people to see. Reading The earth’s main ecosystems 1, 根据短文内容和提示填空。 The biggest ecosystem on our planet is the ocean. It covers the largest area of the earth’s (1) _ [ s f s] and (2) _(容纳) 97% of the earth's water. Many animals and plants live there.Do you know that some of the plants in the ocean (3) p_oxygen for the animals living there? What’s more, the ocean can (4) _ _(吸收) 25%-30% of carbon dioxide and (5) _ [st ] heat. It plays an important role in (6) _ _(减慢)climate change. (7) S_, we're facing a serious problem: ocean pollution. There are millions of(8)_(吨) of plastic in the ocean and it’s very difficult to (9) _ _ _(去除) it. It's time for us to take action and protect the ocean. If we don’t, the plastic will (10). _ [h m] the balance of the ocean ecosystem, so many living things in the ocean may die out , and they may not (11)._ [r t n]. 二,单项选择。 1. They need four more people to _the new research group. A. make up B. wake up C. eat up D. take up 2. Mary looked _ when she learned that she didn't pass the exam. Now she is looking _ at her paper. A. sadly; sadly B. sad; sad C. sad; sadly D. sadly; sad 3.Ninety-five per cent of the students in the class _ from Jiangning. Half of their work _ already finished. A. are; is B. are; are C. is; is D. is; are 4.—Shall we go to the nature park this weekend?—Good idea. We can _ fresh air in the park. A. take up B. take down C. take in D. take off 5.By learning more ,we know that the wetlands _ the “kidneys” of the earth, A.look like B. act like C. act as D. feel kike 6.All the _ things on the earth need water to keep _. A. living; alive B. living; living C. lively; alive D. alive; living 7. —Why was he late again?—He arrived at the station late. _, he missed the early train. A. Therefore B. Because C. However D. Moreover 8.Please _ your kids _too much sugar , it’s_ to their teeth. A. prevent,eat,harm B. stop, eating,harmful C. prevent, from eating,harmless D. keep, from eating,harm 9.If more and more wetlands disappear (消失), there _ space for animals. A. is more and more B. is little and little C. will be little and little D. will be less and less 10.—Why do you choose this kind of e-car?—Because it is much cheaper. _, it saves much energy. A. Moreover B. However C. Instead D. Otherwise 三,翻译 1. 它(海洋)容纳大量海水,水分升上天空,落到陆地上,然后流回海洋。 It holds _ _ salt water, and the water _ _ the sky, _ _ the lands and then _ _ the ocean. 2. 湿地仅占地球陆地面积的6%左右。 Wetlands only _ _ 6% of the earth’s land area. 3. 森林占地球陆地面积的近三分之一。 Forests _ _ _ a third of the earth’s land area. 4. 它(海洋)在减缓气候变化方面 发挥着重要作用。 It _ _ _ _ _ _ _ _ _. 5. 一个生态系统包括一个地区的所有生物和非生物. An _ _ all the _ and _things. 6. 在暴雨期间,湿地像巨大的海绵一样蓄水 _ heavy rains ,the _ _ water _ _ _. 7. 森林把有害的东西吸收在树叶里,帮助净化空气。 Forests _ _things _their _ and _ _ the air. 8. 生态系统是由什么组成的? What _ _ _ _ _ _? 1 / 7 学科网(北京)股份有限公司 学科网(北京)股份有限公司 $