单元语法聚焦二单元语法聚焦二Unit2GreatPeople 单元语法聚焦二[before,after和as引导的时间状语从句&that和who引导的定语从句]Unit2GreatPeople 教材典句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单元语法聚焦二 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。
单元语法聚焦二 语法探究 一、before, after 和as 引导的时间状语从句1．before, 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. 我们总是边走边唱在……之前单元语法聚焦二在……之后 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，我将会给她打一般现在单元语法聚焦二一般将来 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单元语法聚焦二名/代代/名之后先行词 2. who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 ________语时可省略单元语法聚焦二人主/宾人/物物/人宾宾/主 实战演练 I. 单项选择( ) 1. ________ Helen's knowledge and vocabulary increased, she asked more and more questions. A．Unless B．While C．As D．BeforeC单元语法聚焦二 ( )2. Someone called me up in the middle of the night, but he hung up________ I could answer the phone. A．after B．since C．until D．before单元语法聚焦二D ( )3. 2017•攀枝花 The book was so interesting that he had read it for three hours________ he realized it. A．before B．after C．until D．since单元语法聚焦二A ( )4. Stephen Hawking got more than 380，000 followers in two hours________ he put his first message on Weibo. A．before B．since C．after D．until单元语法聚焦二C ( )5. 2017•营口 —Do you know the boy________ is under the tree? —Oh, he is my cousin. A．who B．whose C．whom D．which单元语法聚焦二A ( )6. 2017•丹东 My cousin is a boy ________ lots of trouble to his parents. A．who bring B．which brings C．who brings D．that bring单元语法聚焦二C ( )7. 2016•孝感 It's a good habit to wash your hands ________ you have meals. A．unless B．while C．when D．before单元语法聚焦二D ( )8. 2017•来宾 I like the TV shows________ make me laugh happily. A．who B．what C．whom D．that单元语法聚焦二D Ⅱ. 用before, after或as填空1．He was lucky. He reached the station ________ the train left.2．—Do you have a swimming pool? —No, we don't. At least, not ________ big ________ yours.3．Give me your paper ________ you finish it.单元语法聚焦二beforeasasafter 4．The 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.单元语法聚焦二beforeAfter Ⅲ. 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) we'll visit next week.单元语法聚焦二thatwhothat 4. I like music ________(that/what) can make me relaxed.5. I don't like the people ________ (who/what) don't help others when they are in trouble.单元语法聚焦二thatwho 。