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Unit 2 Great People before, after和as引导的时间状语从句&that和who引导的定语从句1. After he finished school, he went on to study physics in Switzerland.毕业后他去瑞士继续研究物理学。2. He signed his last letter before he passed away. 在去世之前，他签署了他的最后一封信。3. As Helen grew older, she made a lot of progress and learned to read. 随着年龄的增长，海伦取得了很大进步并学会了阅读。4. Anyone who has never made a mistake has never tried anything new. 一个从不犯错误的人，一定从来没有尝试过任何新鲜事物。5. In the dream, he grew a new type of rice that was as big as a peanut.在梦里，他种植了一种像花生一样大的新型水稻。一、before, after 和as 引导的时间状语从句1before, after和as都可以引导时间状语从句。before意为“_”；after意为“_”； as 除了表示“随着”，还可以表示“正当时”和“一边一边”。The students were talking as the teacher came in.当老师进来时学生们正在说话。We always sing as we walk.我们总是边走边唱。2当时间是将来的时候， before, after和as引导的时间状语从句常用_时态，而主句要用_时态。I will call her after I finish the work.完成工作后，我将会给她打电话。二、that 和who引导的定语从句 1定语从句是用来修饰_词或_词的句子，起定语的作用。其中，被修饰的词叫作先行词。定语从句通常出现在先行词_(之前/之后)，由关系代词或关系副词引导，关系代词或关系副词代替_，并在从句中作一定的成分。2who在定语从句中指代_；that在定语从句中既可指代_， 又可指代_； who和that在定语从句中既可作_语，又可作_语，作_语时可省略。.单项选择()1._ Helens knowledge and vocabulary increased, she asked more and more questions.AUnlessBWhileCAs DBefore()2.Someone called me up in the middle of the night, but he hung up_ I could answer the phone.Aafter BsinceCuntil Dbefore()3.xx攀枝花The book was so interesting that he had read it for three hours_ he realized it.Abefore BafterCuntil Dsince()4.Stephen Hawking got more than 380，000 followers in two hours_ he put his first message on Weibo.Abefore BsinceCafter Duntil()5.xx营口Do you know the boy_ is under the tree?Oh, he is my cousin.Awho BwhoseCwhom Dwhich()6.xx丹东My cousin is a boy _ lots of trouble to his parents.Awho bring Bwhich bringsCwho brings Dthat bring()7. xx孝感Its a good habit to wash your hands _ you have meals.Aunless BwhileCwhen Dbefore()8.xx来宾I like the TV shows_ make me laugh happily.Awho BwhatCwhom Dthat.用before, after或as填空1He was lucky. He reached the station _ the train left.2Do you have a swimming pool?No, we dont. At least, not _ big _ yours.3Give me your paper _ you finish it.4The child had studied English for two years _ he went to middle school.5_ the boy finished his homework, he went to bed. He could handed it in on time the next day.选词填空1. Everyone was surprised at the photos _ (who/that) Mr.Thomas took in the deep sea.2. The woman_ (whom/who) is talking with my mother is our English teacher.3. Xiandao Lake in Yangxin is a famous place _ (where/that) well visit next week.4. I like music _(that/what) can make me relaxed.5. I dont like the people _ (who/what) dont help others when they are in trouble.教师详解详析【语法探究】一、 1.在之前； 在之后2一般现在； 一般将来二、 1.名/代； 代/名； 之后； 先行词2人； 人/物； 物/人； 主/宾； 宾/主； 宾【实战演练】.15CDACA68CDD.1.before2.as; as3.after4before5.After.1. that2. who3. that4. that5. who
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