A. because B. why C. that
3 .That is ___ they separated.
A. that A. what B. what C. which 4.Jane is no longer ___ she was four years ago. B. which C. that D. when
特别要注意的几点
1. because，why引导的表语从句。 That's because he didn't understand me. （That‘s because…强调原因）
That's why he didn’t understand me.
（That's why…强调结果）
填 空 : The reason why we didn't trust him is ______ he has often lied． that
1. that 引导的表语从句 that 仅起连接作用，无意义，在句中不作任何成分，通 常不可省略。 e.g. The chance is that one smoker in four will die from smoking. 2. whether 引导的表语从句 （注意：if不能引导表语从句) 在句中也不作任何成分。 e.g. The question is whether the man will turn up in time.
This is how they overcome the difficulties.
My strongest memory is when I attended an American wedding.
5. 其他连词as if, because, as, as though 引导的表语从 句 because引导表语从句通常只用于“This/That/It is because…”结构中。
5.The reason ___ I have to go is_____ my mother is ill in bed． A. why ; why B. why ; because C. why ; that D. that ; because 6. ---Dad, can you give me some advice? ---Why not try your luck downtown, Bob? That’s _____ the best jobs are. A. where B. what C. when D. why 7. ___ she couldn’t understand was ____fewer and fewer students showed interest in her lessons. A. That; what B. What; why C. What; because D. Why; that 8. What the doctors really doubt is ____my mother will recover from the serious disease soon. A. when B. how C. whether D. why
专项练习
1. That’s ___ the Party called on us to do. A. why B. what C. how D. that D. Whether D. why
2. The reason is ___ he is unable to operate the machine.
2.
reason
做主语时，表语从句只能用that引导, 不能用
why 引导。句型结构为：
The reason (why…/for…)is /was that…. The reason is that……
3. 名词主语+be+that引起的表语从句 常用表示事实，真理的名词，或表示看法，观 点的名词，如： fact, truth, idea, opinion, belief, view, feeling, suggestion, plan等作主语。 如： 1.The fact is that our team has won the game. 2.The truth is that she is the thief. 3. My opinion is that we should discuss it with them.
4. where, when, why, how引导的表语从句
连接副词where, when, why, how除在句中起连接作 用外，在从句中还充当时间、地点、方式、原因状语， 本身具有词义。 e.g. That’s where I can’t agree with you.
She is no longer what she was.
Grammar
Noun clauses as the predicative 名词性从句 表语从句
表语从句－在从句中作表语的从句称作表语从句。
一般结构是“主语+系动词+表语从句”。 可以接表语从句的系动词有： 1：be（being,been,am,is,are,was,were) 2: 感官动词 feel , seem , look, appear, sound, taste , smell 3: become, grow , turn ,go 4: prove, remain
as if/though引导的表语从句常置于连系动词look, seem, sound, be, become等后面，常用虚拟语气， 表示不存在的动作或状态。
e.g. It sounds as if/though somebody was knocking at the door.
My anger is because you haven’ime.
连接词：that / whether /as if /as though (if不引导表语从句) 连接代词：who / whom / whose / which / what 连接副词：when / where / why / how / because
The Predicative Clause