课件版fce compact unit7修改中

1、unit 7 Green Issuesvocabulary:acid rain 酸雨animal conservation动物保护carbon emissions 碳排放climate change 气候变化global warming 全球变暖industrial waste 工业废料melting icecaps 融化的冰盖oil spills 石油泄漏renewable resources可再生资源solar power太阳能extreme rainfall特大暴雨freezing temperature极冷的天气frost霜hailstorm雹暴heatwave奇热时期light br

2、eeze微风mild weather 温和天气mist薄雾tornado 龙卷风tropical storm热带风暴 conditionals with ifConditional sentences with if zero conditionalzero conditional it talks about a general truth (when a condition happens) If + do/does,do/does Eg. If we heat ice, it melts. = Ice always melts when heated. first conditional

3、first conditionalit talks about future possibilities (based on a possible present condition)If do/does, will/wont do Eg. If I have time later, Ill upload some of them onto the blog. = It is possible for me to have time later, so it is possible for me to upload the photos. second conditionalsecond co

4、nditional it talks about an imaginary situation about present Ifdid, would/wouldnt do Eg. If I was fitter, I wouldnt find this so hard. = Actually I am not fitter, so I actually find this hard. We use If I were you, I would/wouldnt do to give advice in a polite way. third conditionalthird conditiona

5、l it talks about an imaginary situation in the past, usually showing regret Ifhad/hadnt done, would/wouldnt have done Eg. If we had played any longer, someone would have got hurt. = Actually in the past we didnt play any longer, so no one got hurt, otherwise(否则) we would regret it. Mixed conditional

6、 Mixed conditional 1)If + did, would/wouldnt have doneIf +Second, Third -We use this structure to express how a fact affects what happened in the past 一直以来的事实对于过去某个动作的影响Eg. If I were thin enough, I would have bought that pair of pants. = I am actually not thin enough, so in the past when I saw those

7、 of pants, they didnt fit, so I didnt buy them. 2)If +had(hadnt) done, would(wouldnt) do 2)If +had(hadnt) done, would(wouldnt) do “如果当初现在就” -If+ Third, Second -We use this to talk about how a past fact affects what is happening now 谈论过去做过的事情对于现在的影响 Eg. If I had taken the medicine, I would feel much

8、better now. I didnt take the medicine, so now I dont feel better. comparative/superlative forms irregularirregular A is stronger than B.B is not as strong as A. B is less stronger than B. less harder than these.harmful as old onesless successfully than the big companies/worse than big companies.as s

9、ensible as the second one.so/as negatively as driving a carphrases with inin all:the total number总共，合计in progress:happening or being done now 正在进行in favour of:agree with an idea or plan支持，赞成in due course:at a suitable time in the future.在适当的时候；及时地；in practice:the real situation is that在实践中；实际上bear i

10、n mind:remember to consider something记住；考虑到in the long term:over a period of time continuing far into the future.从长远来看play a part in:be invovled in 参与；起作用；in the meantime:in the time between two events在此期间；in doubt:uncertain可怀疑的；不能肯定的1.in progress2.play a part in 3.In practice4.in due course5.in all

11、 6.in doubt7.In the meantime8.in the long term1.would have called if I2.drive so well as 3.are not in favour 4.would have arrived in 5.probably not as harmful as 6.would work if we hadcontrast links However/by contrast/in contrast with comma, Although/Even though+句子 while/whereas +句子，通常放在对比两个事物的中间。

12、on the one hand, on the other hand通常连用。 despite/in spite of doing/noun doing/noun despite the fact/in spite of the fact +句子 eg:Although solar power has lots of advantages, solar power is not widely used in my country. Writingfirst conditionalfirst conditionalguide para1.A general topic on the topic. para2.Arguments for the statement para3.Arguments against the statement. para4.A reference back to points already made. para5.the writers own opinion.writing 1.please underline the useful linkers. despite this, fi