同步外研英语必修二新突破课件:Module 5 Section Ⅲ Grammar——时间状语从句与原因状语从句
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Section ⅢGrammar——时间状语从句与原因状语从句一、时间状语从句除了之前学习的由when, while, as引导的时间状语从句外,常见的引导时间状语从句的连词还有以下几种情况:1.before引导时间状语从句时,有“在……之前;……才……;……就……;还没来得及……就……”等多种意义。
常用句式:It will be/was +一段时间+before...过了……时间才……;It won't be/wasn't +一段时间+before...没过多久就……。
He had left before I could say something.我还没来得及说点什么,他就离开了。
It won't be long before we meet again.过不了多久我们就会再见面的。
2.since引导时间状语从句时,表示“自从……以来多久了”,从句中的谓语动词多用一般过去时,而主句中谓语动词多用现在完成时或现在完成进行时。
常用句式:It is/has been +一段时间+since从句(常用过去时)We have never met since we graduated from the college.自从我们大学毕业后就再也没有见过面。
As is reported,it is over 100 years since Qinghua University was founded.据报道,自清华大学建校以来已有一百多年了。
3.till/until引导时间状语从句时,主句的谓语动词是延续性动词,表示“直到……为止”;not...until/till...引导时间状语从句时,主句的谓语动词是终止性动词,表示“直到……才……”。
He waited until/till his mother came back.他一直等到他妈妈回来。
I didn't go to bed until/till I finished my homework.直到做完作业我才上床睡觉。
Section ⅡLearning about LanguageⅠ.单词拼写根据汉语或首字母提示,写出下列单词1.The flight(班机) to Beijing has been delayed because of the thick fog.2.His father worked as a sailor(水手) in a ship for 20 years.3.There are many artificial satellites orbiting(绕轨道飞行) around the earth.4.He presented a new concept of the beginning of the universe(宇宙).5.The professor likes watching some historical(有关历史的)TV plays.6.The economy of our country has been developing steadily under the correct leadership of the Party.7.A cool drink was welcome after the long, hot walk in the hot summer.8.Visitors are not allowed to take photographs inside the museum.9.The news of his death was splashed in headlines across all the newspaper.10.As soon as I was aboard the ship, I began to have second thoughts about my leaving.Ⅱ.拓展词汇根据词性和汉语提示,写出下列单词1.economy n .经济→economic adj.经济的2.politics n .政治→political adj.政治的→politician n .政治家3.congratulate v t.祝贺,庆贺→congratulation n .祝贺4.history n .历史→historical adj.历史性的→historic adj.有历史意义的5.achieve v .完成;达到→achievement n .成就;功业;伟绩[寻规律、巧记忆]根据提示补全下列短语1.divide...into...把……划分为……2.work on 从事;继续3.add...to... 把……增添到……4.in space 在太空5.in the history of 在……的历史上6.take a photograph of 拍照片7.take off 起飞8.in total 总共;总计Ⅳ.选词填空选用上述短语的适当形式填空1.In total,fifteen people were injured in the traffic accident last night.2.The writer has a high place in the history of American literature.3.Before the plane takes off,you ought to fasten your seat belts.4.Stand still. Let me take a photograph of you.5.The scientists are still working on inventing new methods of reaching outer space.[寻规律、巧记忆]success n .[U ]成功;[C ]成功的人(或事)(教材P 43)The Beijing Space Control Centre said the flight was a “complete success ”.北京航天指挥控制中心评论说飞行取得“圆满成功”。