九年级下册Unit3Reading

1、Module 2 Environmental problems环境 illEarthatmospherelightheatA1 What do you know about the greenhouse effect? Match the first half of the sentences in column A with the second half in column B. Write the correct letters in the blanks. A B1 There is an atmosphere _ a the greenhouse effect2 It control

2、s _ b the Earth with harmful gases.3 However, we are polluting _ c warmer and warmer.4 The gases cause the _ d to keep in too much atmosphere heat from the Sun.5 The Earth is getting _ e around the Earth.6 We call this _ f the Earths temperature.What do you know about?123456温室效应温室效应大气层大气层吸入吸入温度温度控制T

3、he article is probably from a (an) _.A advertisement(广告） B poster（海报） about the Earth HourC environmental（环境的） science bookD comic bookThe world is_Main problem1：_Main problem2：_Main problem3：_Solution:We need to_in dagerBad habitsCutting down forestsThe greenhouse effectTake proper actionThe world

4、is in DANGER!The world is in DANGER! Our world is in danger. We must do something to protect the environment. But, what are the main problems we face? The greenhouse effect The atmosphere around the Earth is necessary for all living things. It is like the glass of a greenhouse, letting sunlight in a

5、nd keeping heat from getting out. Without it, the Earth would be the same as the Mooncold and lifeless. When we burn fuels such as petrol and coal, we produce a gas called carbon dioxide(CO ). Too much of this gas pollutes the atmosphere, and causes it to keep in too much heat. As a result of the gr

6、eenhouse effect, the Earths temperature is increasing. This causes sea level to rise, and in the future may cause cities to disappear.Reading大气层大气层温室效应温室效应阻止阻止处于危险中处于危险中无生命的无生命的和和一样一样燃料燃料汽油汽油煤煤吸入吸入由于由于温度温度海平面海平面上升上升消失消失 1. The atmosphere around the Earth is not necessary for all living things. 2. Wi

7、thout it, the Earth would be the same as the Sun cold and lifeless. 3. When we burn fuels such as petrol and coal, we produce a gas called oxygen. 4. Too much of this gas pollutes the atmosphere, and causes it to keep in too much heat. 5. As a result of the green house effect, the Earths temperature

8、 is decreasing. 6. This causes level to rise, and in the future may cause cities to disappear.FFFTFTMoon carbon dioxide (CO)increasingRead Line 3line23 Cutting down forests Every year, we destroy nature by cutting down huge areas of forests. This makes the greenhouse effect worse because trees take

9、in CO and produce oxygen. Cutting down trees also destroys the homes of the animals that live in our forests, and causes the surface of the soil to be easily destroyed by rain. This can result in floods and even more damage to the environment.摧毁摧毁大自然大自然吸入吸入表面表面土壤土壤导致导致水灾水灾cutting down forestsCarbon

10、dioxide(CO )Oxygen(O )result in _cause the_ to be destroyed easily by rain.floodsurface of the soilthe homes of animalsdestroys_make _worsegreenhouse effect Bad habits Many of our habits cause pollution. People often use things once and then throw them away, or leave them on the ground as litter. Th

11、is creates mountains of rubbish and pollutes our land and seas. In order to protect the environment, we need to take proper action. We should be different from many consumers and become “green consumers”. This means that we should only buy and use products friendly to the environment. We should also

12、 recycle as many things as we can. We can reuse things for the same purpose as before, or we can use them for new purposes. If we just learn to live in new and different ways, we can make a difference. 习惯习惯把把扔掉扔掉大量的大量的采取采取行动行动恰当的恰当的与与不同不同消费者消费者环保的环保的无害的无害的回收利用回收利用目的目的有作用，有作用，有影响有影响1. Whats our bad h

13、abits? A. often use things once B. throw things away C. leave the things on the ground as litter2. In order to protect the environment, what proper actions are mentioned in this paragraph? A. use both sides of the paper B. use throwaway chopsticks C. buy and use products friendly to the environment

14、D. save water E. recycle things F. reuse things D1 Replace the italicized words with information from the article on page 35.1 The writer says that it is in danger.2 It is necessary for all living things.3 CO comes from burning them.4 This causes sea level to rise.5 It causes the surface of the soil

15、 to be easily destroyed by rain.6 Many of our habits cause this.Comprehension_ the world the atmosphere fuels increasing temperature cutting down trees pollutionAfter you readDiscuss in groups and think about what we should do. D2 Read the article again and circle the correct answers.1 Because of po

16、llution, _. a. not enough sunlight is reaching the Earth b. not enough heat is leaving the Earth c. not enough CO is leaving the Earth2 If there are more trees, the amount of CO in the atmosphere will be _. a. greater b. less c. the same3 We can help protect the environment if we _. a. change our ba

17、d habits b. become consumers c. buy more products4 The purpose of the article is to make _. a. people do more to protect the environment b. more people become consumers c. people learn more about the environmentNew words and expressions 大气层 atmosphere 温度，气温 temperature 消费者 consumer 环境保护的 green 无生命的

18、lifeless 燃料 fuel 煤 coal 结果 result 增长，增加 increase 海平面 sea level 摧毁，毁灭 destroy 自然界 nature 表面，表层 surface 土壤 soil 洪水，水灾 flood 习惯 habit 恰当的 proper 无害的 friendly 回收利用 recycle 目的 purpose 温室效应 在危险中 由于 造成，导致 许多，大量 采取行动 有作用，有影响 把扔掉 与不同 吸收，吸入 防止 和一样 greenhouse effect in danger as a result of result in mountains

19、 of take action make a difference throw away be different from take in keepfrom the same as C1 The words in italics explain the meanings of some words on page 35. Find these words to complete the sentences. Change their forms if necessary.1. _ the flood, many people were left homeless. (because of t

20、he effect of)2. The world population will continue to _ for many years to come. (to become greater in number)3. The mountain is high. It is 3,000 metres above _. (the height of the ocean)4. Man first walked on the _ of the Moon in 1969. (the top part of an area of land) 5. There were _ toys in the s

21、hops during the Christmas holidays. (a very large number of)VocabularyAs a result of increase sea level surfacemountains ofC2 Complete the conversation below with the words from the box. Change their forms if necessary.Mark: The burning and cutting down of trees all over the world _ the loss of our

22、forests. Why do you think people do that?Jenny: The worlds population is growing fast. Thats probably the main reason. People need land to live on.Mark: I suppose so. But forests are important to us. Trees take in CO. When so many trees are being cut down, the CO in the Earths atmosphere _. This cau

23、ses the temperature to rise and puts the world _.Jenny: To _, we need to stop cutting down so many trees, and we should use as few wood products as possible.Mark: Youre right. Everyone should _ to protect the Earth. in danger make a difference take action increase result in result in in danger make

24、a difference take actionincreases1. Our world is in danger. be in danger in+抽象名词 处于麻烦中 处于困难中 处于危急中(需要帮助) 处于沉默中 处于震惊中 处于危险中 处于某种状态中 be in trouble be in difficulty be in need be in silence be in shockLanguage points3. The atmosphere around the Earth is necessary for all living things. face the main pr

25、oblems face v.面对面对 be necessary for 对对是必要的是必要的 干净的水和食物对我们每个人都是必要的。干净的水和食物对我们每个人都是必要的。 Clean water and food are necessary for all of us. = It is necessary for all of us to have clean water and food.2. But, what are the main problems we face?4. It is like the glass of a greenhouse, letting sunlight in

26、 and keeping heat from getting out. (1) like prep.像像 be like / look like 他看起来像学者。他看起来像学者。 He looks like a scholar. (2) letin 让让进来进来 让让出去出去 letout (3) keep from doing 阻止阻止 = stop (from)doing = prevent (from) doing 这些烦恼使她睡不好觉。这些烦恼使她睡不好觉。 These worries kept/stopped/prevented her from sleeping properly.

27、5. Without it, the Earth would be the same as the Moon cold and lifeless. (1) with/ without 有/没有 在老师的帮助下，她取得了很大进步。在老师的帮助下，她取得了很大进步。 With the help of the teacher, she made a great progress. (2) the same as 和一样 驾船和开车不是一回事。驾船和开车不是一回事。 Driving a boat is not the same as driving a car. (3) lifeless adj. 没

28、有生命的 -less 否定后缀否定后缀 粗心的粗心的careless, 无家可归的无家可归的homeless, 没有希望的没有希望的hopeless, 没有尽头的没有尽头的endless, 无助的无助的helpless, 无用无用的的useless 6. Too much of this gas pollutes the atmosphere, and causes it to keep in too much heat.(1) cause v.引起，造成引起，造成 cause sth. to do 这会造成海平面上升，将来也许会造成城市消失。这会造成海平面上升，将来也许会造成城市消失。 Th

29、is causes sea level to rise, and in the future may cause cities to disappear.(2) keep in 保留住保留住7. As a result of the greenhouse effect, the Earths temperature is increasing.(1) as a result of 由于由于 由于天冷，她感冒了。由于天冷，她感冒了。 She got a cold as a result of the cold weather.(2) increase v. 增长增长 近年来，人口不断增长。近年来

30、，人口不断增长。 The population continues to increase over the years.8. Every year, we destroy nature by cutting down huge areas of forests.(1) by doing 通过通过(2) cut down (cut-cut-cut) 砍伐砍伐9. This makes the greenhouse effect worse because trees take in CO and produce oxygen.(1) make + n. + adj.(比较级比较级) 使使更更这

31、些花让你的房间更温馨了。These flowers make your room warmer.(2) take in 吸收吸收鱼用腮(gill)呼吸。Fish take in oxygen through their gills.10. Cutting down trees also destroys the homes of the animals that live in our forests, and cause the surface of the soil to be easily destroyed by rain.(1) the home of 的家园的家园(2) the surface of 的表面的表面11. This can result in floods and even more damage to the environment.(1) result in 造成，导致造成，导致 这次水灾造成很多人死亡。这次水灾造成很多人死亡。 The flood resulted in many deaths. (2) damage n.&v.损坏，毁坏损坏，毁坏 (destroy v.)12. People often use things once and then throw them away, or leave them on the gro