英语同步优化指导(人教必修3)课件：Unit-4-Period-2-Learning-about-Language-

单击此处编辑母版文本样式,英语必修3,Unit 4Astronomy:the science of the stars,Period 2,Learning about Language,Unit 4Astronomy:the science,block out,挡住(光线)；抹去，忘掉(不愉快的回忆),The ashes of the volcanic eruption,blocked out,the way.火山爆发的灰烬挡住了道路。,Over the years she had tried to _that part of her life.多年来她努力想把她生命中的那一段经历从记忆中抹去。,词,汇,As a result of this event,，,a great dust cloud formed in the sky,blocking out,the sunlight.,因此，天空中形成大量的灰尘阻挡住了太阳光线。,block out,block out 挡住(光线)；抹去，忘掉(不愉快的回忆,block in填塞；画草图,block off (用路障)封锁；堵住，阻挡,block up 塞住；封住(孔、洞),block one,s way 挡住某人的去路,block in填塞；画草图,根据语境用block 的短语填空,At that moment black clouds _the sun.,My nose is _with this cold.,The police _the street where the gunman was hiding.,Your bike has _，could you move it away？,blocked out,blocked up,blocked off,blocked my way,根据语境用block 的短语填空blocked outblo,名师点津,“,动词,out,”,型短语还有：,break out爆发,carry out 执行,give out 用完；耗尽；分发；发出,make out 看清；听清；理解；明白,pick out 精心挑选；辨别出,point out 指出,set out 出发；动身,sort out 整理；把,安排好,work out 找,的答案，解决；计算出；计,划；思考；锻炼身体；成功地发展,名师点津“动词out”型短语还有：,名词性从句(二)主语从句,名词性从句(二)主语从句,一、定义,在主从复合句中充当主语的从句即为主语从句。,What made her happy,was that she won the game in such an important match.,令她高兴的是在这么重要的比赛中她获胜了。,It worried the woman,that her son was always playing computer games.,儿子一直在玩电脑游戏，这让这个女人很担心。,一、定义,二、主语从句的连接词及其句法功能,1.,连接词,that,和,whether/if,(1)that 在从句中不充当任何句子成分，本身无任何意义，只起连接作用，但不可省略。,That former Hollywood child star Shirley Temple died,upset her fans all over the world.,好莱坞前童星秀兰邓波儿的离世令全世界的粉丝感到难过。,二、主语从句的连接词及其句法功能,(2)whether/if 在从句中不充当任何句子成分，起连接作用，意为,“,是否,”,，不可省略。,Whether the plan will be carried out,is still unknown.,It is still unknown,if/whether the plan will be carried out.,这个计划是否会实施还不知道。,名师点津：,whether 引导的主语从句既可放在句首也可放在句尾，但 if 引导的主语从句只能放在句尾，前面需用 it 作形式主语。,(2)whether/if 在从句中不充当任何句子成分，起连,2.,连接代词(,who,，,whose,，,whom,，,what,，,which,，,whichever,，,whoever,，,whomever,，,whatever,等)。连接代词引导主语从句，在从句中可以作主语、宾语、表语或定语。,Who will go to the concert,is not known.,不知道谁会去听音乐会。,Whoever breaks the law,should be punished.,无论是谁只要违法就应该受到惩罚。,Whatever you do in your spare time,should do no harm to others.,无论你在业余时间做什么都不应该伤害其他人。,2.连接代词(who，whose，whom，what，whi,名师点津：,who引导的主语从句表示一件,“,事情,”,，而 whoever引导的主语从句指,“,人,”,。,英语同步优化指导(人教必修3)课件：Unit-4-Period-2-Learning-about-Language-,3.,连接副词(,when,，,where,，,how,，,why,等)。连接副词引导主语从句并在从句中作状语。,When we will have a meeting,is an important question.,我们何时举行会议是个重要的问题。,Where the English evening will be held,has not yet been decided.,英语晚会将在哪里举行，还没有决定。,英语同步优化指导(人教必修3)课件：Unit-4-Period-2-Learning-about-Language-,名师点津：,名词性从句引导词的确定步骤：,分析句式结构，明确名词性从句在句中的功能；,明确名词性从句所表达的意义；,明确名词性从句中所需要的成分及意义；,确定从句的引导词。,英语同步优化指导(人教必修3)课件：Unit-4-Period-2-Learning-about-Language-,三、主语从句中用,it,作形式主语的结构,1.,It,be,形容词(,obvious,，,true,，,natural,，,strange,，,etc.,),主语从句,It is doubtful whether,she will be able to come to the party.,她是否能来参加聚会还很难说。,It is very important that,a student(should)learn English well.,学生学好英语很重要。,名师点津：,在,“,It be 形容词主语从句,”,结构中，若形容词为 important/necessary/strange 等时，主语从句中的谓语用,“,(should)do,”,。,三、主语从句中用 it 作形式主语的结构,2.,It,be,名词词组(,no wonder,，,an honour,，,a pity,，,a/no surprise,，,etc.,)主语从句,It,s a pity that,you missed the film.,你没有看那部电影真是太遗憾了。,英语同步优化指导(人教必修3)课件：Unit-4-Period-2-Learning-about-Language-,3.,It,be,过去分词(,said,，,reported,，,thought,，,expected,，,proved,，,etc.,)主语从句,It is suggested that,the meeting be put off.,有人建议会议延期召开。,名师点津：,在,“,Itbe过去分词主语从句,”,结构中，过去分词若为 suggested/ordered/required/advised 等时，主语从句中的谓语用,“,(should)do,”,。,英语同步优化指导(人教必修3)课件：Unit-4-Period-2-Learning-about-Language-,4.,It,不及物动词(,happen,，,seem,，,appear,，,etc.,)主语从句,It seems that,it is going to rain.,看起来好像要下雨。,5.,It,及物动词宾语主语从句,It surprised him why,they came to visit him suddenly.,让他吃惊的是他们为什么突然来看他。,英语同步优化指导(人教必修3)课件：Unit-4-Period-2-Learning-about-Language-,四、主语从句中应注意的问题,1.,从句要用陈述语序,How he succeeded,is still a puzzle.,他是如何成功的仍然是个谜。,英语同步优化指导(人教必修3)课件：Unit-4-Period-2-Learning-about-Language-,2.,主谓一致,(1)从句作主语时，主句的谓语一般用单数形式。,Where he will get a job after graduation,has puzzled,him much.,毕业后到哪儿找份工作使他很困惑。,名师点津：,what 引导主语从句时，有时主句谓语动词应与主句中作表语的名词保持一致。,What the school needs most,are books.,这所学校最需要的是书。,2.主谓一致,(2)如果由 and 连接两个或两个以上的主语从句作主语时，谓语动词用复数；由两个或多个连接词引导一个主语从句时，谓语动词用单数。,When they will start and where they will go have,not been decided yet.,他们将在什么时候动身以及要去哪里还没定下来。,When and where they will hold the meeting is,not clear.,他们何时何地召开会议还不清楚。,(2)如果由 and 连接两个或两个以上的主语从句作主语时，,英语同步优化指导(人教必修3)课件：Unit-4-Period-2-Learning-about-Language-,Unit 4Exercise 2,Unit 4Exercise 2,谢谢观看！,谢谢观看！,