1、unit 7 Green Issuesvocabulary:acid rain 酸雨animal conservation動物保護carbon emissions 碳排放climate change 氣候變化global warming 全球變暖industrial waste 工業廢料melting icecaps 融化的冰蓋oil spills 石油泄漏renewable resources可再生資源solar power太陽能extreme rainfall特大暴雨freezing temperature極冷的天氣frost霜hailstorm雹暴heatwave奇熱時期light br

2、eeze微風mild weather 溫和天氣mist薄霧tornado 龍卷風tropical storm熱帶風暴 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(否則) 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 一直以來的事實對于過去某個動作的影響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 “如果當初現在就” -If+ Third, Second -We use this to talk about how a past fact affects what is happening now 談論過去做過的事情對于現在的影響 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總共，合計in progress:happening or being done now 正在進行in favour of:agree with an idea or plan支持，贊成in due course:at a suitable time in the future.在適當的時候；及時地；in practice:the real situation is that在實踐中；實際上bear i

10、n mind:remember to consider something記住；考慮到in the long term:over a period of time continuing far into the future.從長遠來看play a part in:be invovled in 參與；起作用；in the meantime:in the time between two events在此期間；in doubt:uncertain可懷疑的；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，通常放在對比兩個事物的中間。

12、on the one hand, on the other hand通常連用。 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