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1、Unit 3 Reading Warming upWhat do the pictures tell us?Have a discussion:What will happen to the earth if we keep polluting it?How can we reduce pollution?Whatis the greenhouse effect?A1 What do you know about the greenhouse effect?Match the first half of the sentences in column A with the second hal
2、f in column B.Write the correct letters in the blanks.1.There is an atmosphere.2.It controls3.However,we are polluting4.The gases cause the atmosphere5.The Earth is getting6.We call thisA the greenhouse effectB the Earth with harmful gasesC warmer and warmerD to keep in too much heat from the SunE a
3、round the EarthF the Earths temperatureABThe greenhouse effect 温室效应温室效应1.Do you recycle A:newspapers?1 B:tins?1 C:plastic bags?22.When you make a short journey,do you A:walk or cycle?3 B:go by car?0 C:go by public transport?13.What type of bags do you use for shopping?A:reusable(e.g.,basket)3 B:reus
4、ed plastic 1 C:new plastic 04.How many pieces of electrical equipment are used in your kitchen?A:10 or more 0B:5 to 9 1C:below 5 25.Do you make sure that lights and other electrical equipment are switched off when not needed?A:nearly always 2 B:seldom 1 C:never 06.Do you use disposable chopsticks?A:
5、often 0 B:seldom 1 C:never 27.Do you use paper tissues?A:often 0 B:seldom 1 C:never 28.Do you usually take?A:a bath 0 B:a shower 1Look at the pictures,the title,the introduction and the sub-headings of the article on page35.Then answer the qustions below.Before you read The main problems we face.The
6、 greenhouse effect,cutting down forests and bad habits.A green consumer is someone who only buys products friendly to the environment.1.What is the article mainly about?2.What problems does the article discuss?3.A consumer is someone who buys and uses things.Can you guess what a green consumer is?Re
7、adingReadingReading TipsReading Tips在阅读每个段落时，要注意在阅读每个段落时，要注意综合运用综合运用略读略读(skimming)与与扫读扫读(scanning)这两种方法。这两种方法。略读略读(skimming)只看文章标题、只看文章标题、下标题以及每个部分或者段落第一行下标题以及每个部分或者段落第一行,关注文章中反复出现的关键词。关注文章中反复出现的关键词。略读时略读时,要用充足的时间读懂段落要用充足的时间读懂段落的第一句和第二句的第一句和第二句,因为第一句往往是因为第一句往往是该段的主题句该段的主题句(topic sentence),而第二而第二句往往是
8、对前句的延伸句往往是对前句的延伸(extension)或或进一步的解释进一步的解释(explanation)。通过略读把握文章大意通过略读把握文章大意 Now,skimming to get main ideas.Read the first paragraph and find out the main idea.Our world is in danger.Read the second paragraph and find out the main idea.The atmosphere around Earth is important to all living things.Rea
9、d the third paragraph and find out the main idea.Cutting down trees cause many problems.Read the third paragraph and find out the main idea.Bad habits cause pollution.Rubbish should be thrown away in right way or we should use recycling things.Read the last paragraph and find out the main idea.Be gr
10、een consumers and try to buy and use products friendly to the environment.1.The writer says that it is in danger.2.It is necessary for all living things.3.CO2 comes from burning them.4.This causes sea level to rise.5.It causes the surface of the soil to be easily destroyed by rain.6.Many of our habi
11、ts cause this.the world The atmospherefuelsThe increasing temperatureCutting down treespollutionD2 Read the article again and circle the correct answers.1.Because of pollution,_.a.not enough sunlight is reaching Earthb.too much heat is leaving the Earthc.not enough CO2 is leaving the Earth2.If there
12、 are more trees,the amount of CO2 in the atmosphere will be _.a.greater b.lessc.the same3.We can help protect the environment if we_.a.change our bad habitsb.become consumersc.buy more products4.The purpose of the article is to make _.a.people do more to protect the environment b.more people become
13、consumersc.People learn more about the environment1.原句再现：原句再现：It is like the glass of a greenhouse.它像温室的玻璃。它像温室的玻璃。be like=look like 像；什么样子像；什么样子如：如：你妈妈长什么样子？你妈妈长什么样子？-What is your mother like?=What does your mother look like?-My mother is a tall woman with short hair.like prep.像像50年后的世界会是什么样子？年后的世界
14、会是什么样子？-What will the world be/look like in 50 years?Our life will be more wonderful.2.原句再现：原句再现：This causes sea level to rise,and in the future may cause cities to disappear.这使得海平面上升，在未这使得海平面上升，在未来会使得城市消失。来会使得城市消失。如：如：什么使得你犯了那个愚蠢的错误？什么使得你犯了那个愚蠢的错误？-What causes you to make the silly mistake?cause sb
15、 to do sth使某人做某事使某人做某事3.原句再现：原句再现：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.如：如：做运动对我们的身体健康很重要。做运动对我们的身体健康很重要。exercise is important to our health.(do)Cutting down treesdestroys and causes为为V-in
16、g作主语，谓语动词用单数。作主语，谓语动词用单数。Doing4.原句再现：原句再现：People often use things once and then throw them away,or leave them on the ground as litter.人们人们经常会把用了一次的东西扔掉，或者当经常会把用了一次的东西扔掉，或者当垃圾丢弃在地上。垃圾丢弃在地上。throw them/it awaypick them/it upthrow them away 中的中的them为代词，代为代词，代替前面的替前面的things,不可以说不可以说throw away thempick up
17、 them/itleave 意为遗留；落下意为遗留；落下 x5.原句再现：原句再现：We should also recycle as many things as we can.我们也应该我们也应该尽我们所能地多重复利用东西。尽我们所能地多重复利用东西。如：如：我们应该尽可能多的帮妈妈做家务。我们应该尽可能多的帮妈妈做家务。We should do we to help our mother.=We should do to help our mother.asas sb can=asas possible尽可能。尽可能。的。的as much homework as canas much h
18、omework as possible1.在危险中在危险中2.2.保护环境保护环境3.3.温室效应温室效应4.4.生物生物5.5.像。像。6.6.阻止阻止发生发生7.7.和和.一样一样8.8.引起。引起。9.9.太多热量太多热量be in danger protect the environmentgreenhouse effectliving thingsbe likekeep/stopfrom doing sththe same ascause sb to do sthtoo much heat10.10.由于由于11.11.砍伐砍伐12.12.破坏自然破坏自然13.13.使。更差使。更差
19、14.14.吸收二氧化碳吸收二氧化碳14.14.产生氧气产生氧气15.15.造成；导致造成；导致16.16.引起污染引起污染17.17.扔掉扔掉cut down destroy naturemake sth.Worsetake in=absorb CO2produce oxygenresult incause pollutionthrow awayas a result of=because of 18.18.大量的大量的19.19.为了为了20.20.保护环境保护环境21.21.采取行动采取行动22.22.和。不和。不同同23.23.有利于环境有利于环境的产品的产品24.24.尽我们可能尽我
20、们可能多的多的25.25.有作用；有有作用；有影响影响mountains of=lots of in order toprotect the environmenttake actionbe different fromproducts friendly to the environmentas many things as we can make a differencevThe writer gives an example of a bad habit that causes pollution.Can you name some other bad habits that cause pollution?