表语从句与同位语从句PPT讲稿
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(一).表语从句:从句在句中充当表语成分,一般放在连系动词之后. 作用:对主语进行解释说明,使主语的内容具体化。
结构是主语+系动词+表语从句系动词(包括be动词和以下六种)亦称联系动词(Link Verb),作为系动词,它本身有词义,但不能单独用作谓语,后边必须跟表语(亦称补语),构成系表结构说明主语的状况、性质、特征等情况。
1)状态系动词用来表示主语状态,只有be一词,例如:He is a teacher. 他是一名教师。
(is与补足语一起说明主语的身份。
)2)持续系动词用来表示主语继续或保持一种状况或态度,主要有keep, remain, stay, lie, stand, 例如:He always kept silent at meeting. 他开会时总保持沉默。
This matter remains a mystery. 此事仍是一个谜。
3)表像系动词用来表示"看起来像"这一概念,主要有seem, appear, look, 例如:He looks tired. 他看起来很累。
He seems (to be) very sad. 他看起来很伤心。
4)变化系动词这些系动词表示主语变成什么样,变化系动词主要有become, grow, turn, fall, get, go, come, run. 例如:He became mad after that. 自那之后,他疯了。
She grew rich within a short time. 她没多长时间就富了。
5)终止系动词表示主语已终止动作,主要有prove, trun out, 表达"证实","变成"之意,例如:The rumor proved false. 这谣言证实有假。
The search proved difficult. 搜查证实很难。
His plan turned out a success. 他的计划终于成功了。
表语从句一、概念表语从句是在复合句中作表语的名词性从句.放在系动词之后,一般结构是”主语+系动词+表语从句”可以接表语从句的连系动词有be, look, remain, seem等.可以接表语从句的系动词有:1.be(being,been,am,is,are,was,were)2. feel , seem , look, appear ,sound, taste , smell3. stand , lie , remain ,keep, stay4. become ,get , grow , turn ,go ,come, run, fall5. prove, turn outThe trouble is that we are short of money.困难是我们资金短缺.That is why stone walls are used instead of fences around New England fields.这就是为什么在新英格兰用石头墙而不用栅栏的原因.At that time, it seemed as if I couldn't think of the right word anyhow.当时,我似乎怎么也想不出一个恰当的字眼来.引导表语从句的词:从属连词that、whether、as though、as if(That引导表语从句时,在口语中可以省略.)关系代词who, what, which, whom, whose, whatever, whoever, whomever, whichever等;关系副词when, where, why, how, however, whenever, wherever等.●由从属连词that,whether引导的表语从句.that在引导表语从句时无词义,而whether有词义,意为、是否.这时主句的主语常常是些抽象名词,如question(问题),trouble(麻烦),problem(问题),result(结果),chance(可能性),suggestion(建议),idea(想法),reason(理由)等.表语从句对主句主语进行说明、解释,使主语的内容具体化.例如:The trouble is (that) she has lost his money. 麻烦的事是他丢了钱.The question is whether we need more ice cream.问题是我们是否还需要一些冰淇淋.The problem was that it was too valuable for everyday use.问题是它作为日常之用太贵重了. What she couldn’t understand was that fewer and fewer students showed interest in her lessons. 我们不能理解越来越少的学生对他的课不感兴趣.●由关系代词引导的表语从句.关系代词who, what, which, whom, whose, whatever, whoever, whomever, whichever等引导表语从句,在句中作主语、宾语、表语,关系代词不能省略.例如:The question is which of us should go.问题是我们哪一个应该去.The problem was who could do the work.问题是谁能做这项工作.That's what he is worrying about.那就是他在担心的事.That's what we should do.那是我们应该做的.●由关系副词引导的表语从句.关系副词when, where, how, why 除在句子起连接作用外,在从句中还充当时间,地点,方式或原因状语,本身具有词义.例如:Go and get your coat. It's where you left it. 去把雨衣拿来.就在你原来放的地方.I had neither a raincoat nor an umbrella. That’s why I got wet through. 我们既没伞也没雨衣,这是我们淋湿的原因.That is how mice ruin many stores of grain every year.那就是老鼠是怎样每年损害大量粮食的. That is what he is worried about.那就是他所担心的.●由连词because,as if/as though等引导的表语从句.It looked as if it was going to snow.看起来好像要下雪了.That's because we never thought of it.这是因为我们从未想过此事.It seems as if he didn’t know the answer.好像他不知道答案.注意A. 表语从句一定要用陈述语序.False: The question is when can he arrive at the hotel.Right: The question is when he can arrive at the hotel.B.不可以用if,而用whether 连接表语从句(as if 例外).(引导宾语从句时可以互换if/whether ,位于介词后要用whether,位于句首时要用whether.)引导表语从句,主语从句,同位语从句时要用whether.False: The question is if the enemy is marching towards us.Right: The question is whether the enemy is marching towards us.Right: It looked as if he had understood this question.C.不像宾语从句,在有表语从句的复合句中,主句时态和从句时态可以不一致.Right: The question is who will travel with me to Beijing tomorrow.Right: The question is why he cried yesterday.D. that在表语从句中不可以省掉.单项选择1.The question is ________ we will have our sports meet next week.A. thatB. ifC. whenD. whether2.The reason why he failed is ________he was too careless.A. becauseB. thatC. forD. because of3. Go and get your coat. It’ s ________you left itA. whereB. thereC. there whereD. where there4.The problem is _________to take the place of TedA. who can we getB. what we can getC. who we can getD. that we can get5. What I want to know is ______ he likes the gift given by us.A. thatB. ifC. whetherD.不填6. The reason is_________ I missed the bus.A. thatB. whenC. whyD. what7. That is _____ we were late last time.A. thatB. whenC. whyD. what8. She looked _________ she were ten years younger.A. thatB. likeC. asD. as though9.—I fell sick!--I think it is _______ you are doing too much.A. whyB. whenC. whatD. because10. The reason why he hasn’t come is ___________.A. because his mother is illB. because of his mother’s being illC. that his mother is illD. for his mother is ill11. —He was born here.-- That is _______ he likes the place so much.A. thatB. whatC. whyD. how12.That is ______ Lu Xun once lived.A. whatB. whereC. thatD. why13._______your father wants to know is________ getting on with your studies.A. What; how are youB. That;how you areC. How;that you areD. What;how you are14. The trouble is__________ we are short of tools.A. whatB. thatC. howD. why that15. America was __________was first called India by Columbus.A. whatB. whereC. the placeD. there where16. China is becoming stronger and stronger. It is no longer_________ .A. what it used to beB. what it was used to beingC. what it used to beingD. what it was used to be17. ________he really means is ________he disagrees with us.A. What … thatB. That … whatC. What … whatD. That … what18. The energy is ________ makes the cells able to do their work.A. thatB. whichC. whatD. such19 —I drove to Zhuhai for the air show last week.—Is that_____ you had a few days off?A. why B .what C. when D. where20 .I had neither a raincoat nor an umbrella ____I got wet through.A. It’s the reasonB. That’s whyC. There’s whyD. It’s how21. See the flags on top of the building? That was ______ we did this morning.A. whenB. whichC. whereD. what22. --- Are you still thinking about yesterday’s game? ---Oh, that’s _____.A. what makes me feel excitedB. whatever I feel excited aboutC. how I feel about itD. when I feel excited23. What surprised me was not what he said but ______ he said it.A. the wayB. in the way thatC. in the wayD. the way which句子翻译1.这就是我想做的________________________________________________________2.这房子正是他最需要的东西.__________________________________________________________2.这就是Henry 怎样解决问题的_____________________________________________________3.问题是谁能完成这项困难的任务________________________________________________________4.今天讨论的话题是未来的学校会是怎样的_________________________________________________5.他迟到的原因是交通拥堵._______________________________________________________________6.事实是他对我撒谎了.___________________________________________________________7. You are saying that everyone should be equal, and this is ______________________________ _______________ . (disagree) 你一直说每个人应该是平等的这就是我不同意之处.9.Your coat is still _______________________________________________ . (where) 你的外套仍然在你放的地方.10.I had neither a raincoat nor an umbrella. That is ______________________________________ ___ through. (get) 我既没有雨衣也没有雨伞.这就是为什么我全身被淋湿的原因.11. It sounds ____________________________________________________ the door.(as if) 听起来好像某人正在敲门.12. It seems ______________________________ interested in Henry. (become) 好像伦敦所有人都变得对亨瑞感兴趣.13.The last time we had great fun was ________________________________________________ _____ the Water Park.(visit) 上一次我们玩得很开心的时候是我们正在参观水族公园的时候.同位语从句1.什么是同位语从句?在主从复合句中作同位语的从句称为同位语从句,常放在fact, news, idea, truth, hope, problem, information, wish,promise, answer, evidence, report, explanation, suggestion, conclusion等抽象名词后面,说明该名词的具体内容。