【正文】 （ 倒裝 ） 3. You must try to do as I did. ③ 像 … ..一樣 4. As she was late for class, she had to say sorry. ④ 由于 ※ before ① 在 …… 前 It will be half a year before I e back. It won’t be half a year before we meet again. We sailed four days and nights before we saw the land. We hadn’t run a mile before he felt tired. ④ 肯定句 “ 才” 否定句 “就” ② it will be +一段時(shí)間 before......多久之后才 ... ③ it won’t be +一段時(shí)間 before......不久就 .... ★ the minute, the second等 名詞短語 可以引導(dǎo)時(shí)間狀語從句 ： 1. Every time I was in trouble, he would e to help me. 2. Next time you e, do remember bring your son here. 3. First time I met the girl. I felt in love with her. 4. You are wele to e back any time you want to. 5. Last time she saw James, he was lying in bed. 語法規(guī)則： every time, each time, next time, the first time, any time 等名詞短語引導(dǎo)狀語從句不加介詞。 ? since語氣較弱，常表對方已知的事實(shí)，相當(dāng)于漢語的“既然”。 ? He got so little pay that his family had to live on welfare money. 他工資很少，他的家人不得不靠救濟(jì)金生活。 ?You’ll catch a cold unless you put on your coat. 你會(huì)感冒的除非你穿上大衣。 1. ___________________he is old ,he works hard. 2. ___________________you say so,I don’t believe it. 3. Smart ___ he is ,he doesn’t study hard. 4. The old tower must be saved, _____________ the cost. A. however B. whatever C. whichever D. wherever Although / Though Even though (even if) as 8. 比較狀語從句 ?比較狀語從句常用 than或 as…as， the more… the more等 引導(dǎo)。 ? He can jump higher than I can. 他能比我跳得高。 ? If he es, I’ll tell you.（ I’ll tell you if he es.） 如果他來，我會(huì)告訴你。 If it doesn’t rain, we’ll go fishing. 明天不下雨我們就去釣魚。 The more I see him , the less I like him. 我越看他就越不喜歡。 ? Although it is difficult, we shall do it. 此事雖難，但我們還是要做。 ? He spoke slowly in order that everyone should understand. 他講得很慢以便人人能聽懂。 7. ____I didn’t know the way, I asked a policeman. 我由于不知道路，因而問警察。 如： He won’t go to bed till/until she returns. 3． till不可以置于句首，而 until可以。 ? Wait until you’re called. 你等著叫你吧！ When he came, I was cooking. 他來時(shí)，我在做飯。（ when是從屬連詞） ? I was late because I missed the bus. 我遲到了，因?yàn)槲艺`了公共汽車。 （ because是從屬連詞） . ? If she asks me, I’ll tell her. 她如果問我，我就告訴她。 I’ll call you as soon as I e back. 我一回來就給你打電話。 如： Until you told me I had no idea of it. 4． not… until句型中的強(qiáng)調(diào)和倒裝說法 ： It was not until you told me that I had any idea of it. （強(qiáng)調(diào)句） Not until you told me did I have any idea of it. （倒裝） ※ 易混淆句型 ? it is + 時(shí)間 + since before when that ? It is five years ______he finished his research. ? It was five years ______he finished his research. ? It was five years later _______he finished his research. ? It was 5 o’clock _____ he got home. ? It was at 5 o’clock _____ he got home. since when that before that 1. ______ he es here tomorrow, I will call you. 2. ________ he was walking in the street, he met Tim. 3. She sang ____she worked. 4. There was an applause _______________________she appeared on the stage. When While/When as the moment (as soon as) the minute/the second/ immediately/directly/instantly won’t be long ______he finishes his writing. he had finished his work, he left there. is two years ______he came here. 8. __________