名词性从句-- 名从和定从比较(全面).ppt

_________________ the meeting will be held is not decided. When and where _______ can we solve the problem is a difficult problem. How 4. 主语从句还可以用when, where, how, why, which(哪个/些), which+n, how many, how much, how long, whose 来引导． ____________ we should pay for the spring outing is not known. How much _______ he committed suicide is that his firm went bankrupt. Why 1.It + be + 形容词 ＋ that从句 It is necessary / important/ obvious that… 2.It + be + -ed分词 ＋ that从句 It is believed that… 人们相信… It is known to us all that …. 众所周知… It has been decided that…… 已经决定…… 3.It + be + 名词 ＋ that从句 It is common knowledge that… …是常识 It is a surprise that …. 令人惊奇的是… It is a fact that…… 事实是…… 4.It + 不及物动词 ＋ that从句 It appears that… 似乎… It happens that …. 碰巧… It occurred to me that…… 我突然想起…… 另注意在主语从句中用来表示惊奇、不相信、惋惜、理应如此等语气时，谓语动词要用 虚拟语气 “(should) +do”，常用的句型有： It is necessary (important, natural, strange, etc.) that … It is suggested (requested, proposed, desired, etc.) that… 主语从句中的“主谓一致”： 1.主语从句通常被看作一个整体,主句的谓语动词用单数形式. That they will come _______certain. 2. What 引导主语从句时,主句谓语动词的单复数由表语的单复数决定. What he wants ______these books. What he wants ______some water. 注意 is are is 表语从句 连词的选择与宾语从句一样. 个别地方有区别. (be, seem, look, feel, become, get, remain, stay) 如果表语从句是一个陈述句，连词用that.　(不可省略) My trouble is ______ my daughter doesn’t listen to me. 2.如果表语从句是一个一般疑问句，连词用 whether. 一般不用if. 　The question is ________ he will accept our offer. that whether 3. 如果表语从句本身缺主语或宾语或表语(物), 连词用what; 如果表语从句本身缺主语或宾语或表语(人),连词用who/ whom.　(非正式文体中who可取代whom.) My concern is ______ will win the game. who He is no longer ________ he used to be. what 4. 表语从句还可以用when, where, how, whose, why, which(哪个/些), which+n, how many, how much, how long, as if 来引导． 1) He remains ________ he is. 2) The cloth feels ________ it is cotton. where as if 同位语从句 在一些名词(idea, fact, news, promise, problem, suggestion…)之后的从句，解释说明这些名词的内容的叫同位语从句． Word came ________