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大学英语语法常识
1.由that引导，因为that没有任何意义，也不充当任何语句成分。因而that在非正式文体中可以省掉。这类宾语从句一般表达一种陈述意义。
e.g.He told me (that) he would go to Wuhan.
Tom says (that) he must study hard.
She told me (that) she was a student.
(1)假定由and联接两个并排的宾语从句时，第二个that则不能省掉。
e.g.She said she liked English very much and that she didn’t like math at all.
(2)常接that引导的宾语从句的谓语动词有：believe, expect, explain, feel, hear, hope, imagine, prefer, promise, report, say, see, tell, think, understand, warn, wish等。
2.由联接代词或联接副词who, whose, what, which, when, where, how, why引导，富含??/span>啥、哪个、啥时分、啥当地、怎样、为啥”等特别疑问意义。
e.g.Do you know who they’re talking about?
Can you tell me what they’re looking for?
I don’t know where she has gone.
I wonder how she can find us.
She didn’t tell me where her hometown was.
3.由隶属连词whether和if引导，富含“是不是，能否，对否，有否”等一般疑问意义。
e.g.She asked me if I could help her.
Jim wanted to know whether I had taken his English book.
Please tell me whether you can come or not.
在这类宾语从句中要留心两点：
(1)if引导宾语从句和状语从句的差异
if引导宾语从句时意为“是不是”，从句中该用啥时态就使用啥时态。
if引导条件状语从句时意为“假定”，从句中使用一般如今时替代一般将来时。
e.g.She 
wanted to know if you were a teacher.
I don’t know if the letter is yours.
They’ll go boating if it is fine tomorrow.
I’ll give it to her if she comes next week.
(2)if引导宾语从句时大都情况下可以与whether交换，但假定要杰出“究竟是……仍是不……”这层意思时，一般用whether，并在后边的加上“or not”，即一般要选择whether构成whether…or not的规划。
e.g.Please find out whether the money is his or not.
Let me know whether you can come or not.
I want to know whether you can help me or not.
大学英语基础常识
1) leave的用法
1.“leave+地址”标明“脱离某地”。例如：
When did you leave Shanghai?
你啥时分脱离上海的?
2.“leave for+地址”标明“启航去某地”。例如：
Next Friday, Alice is leaving for London.
下周五，爱丽斯要去伦敦了。
3.“leave+地址+for+地址”标明“脱离某地去某地”。
例如：
Why are you leaving Shanghai for Beijing?
你为啥要脱离上海去北京?
2) 神态动词should“大约”学会运用
should作为神态动词用?常常标明意外、惊奇、不能了解等?有“竟会”的意思
例如：：How should I know? 我怎么晓得?
Why should you be so late today?
你今日为啥来得这么晚?
should有时标明应作为或发生的事?例如：
We should help each other.咱们应当彼此协助。
咱们在运用时要留心以下几点
1. 用于标明“大约”或“不大约”的概念。此常常指老一辈教训或责怪晚辈。例如：
You should be here with clean hands. 你大约把手洗洁净了再来。
2. 用于提出定见劝导别人。例如：
You should go to the doctor if you feel ill. 假定你感触不舒畅?你最佳去看医生。
3. 用于标明可以性。should的.这一用法是考试中常常呈现的考点之一。例如：
We should arrive by supper time. 咱们在晚饭前就能到了。
She should be here any moment. 她随时都可以来。
3) What…? 与 Which…?
1. what 与 which 都是疑问代词，都可以指人或事物。可是what仅用来问询作业。如：
What is your father? 你父亲是干啥的?
该句恰当于： What does your father do?
What is your father’s job?
Which 指代的是特定规模内的某一自个。如：
Which is Peter? 哪个是皮特?
—The boy behind Mary. 玛丽不和的那个男孩。
2. What…?是泛指?所指的事物没有规模的捆绑，而
Which…?是特指，所指的事物有规模的捆绑。如：
What color do you like best? 一切颜色
你最喜爱啥颜色?
Which color do you like best, blue, green or yellow? 有特定的规模
你最喜爱哪一种颜色?
3. what 与 which 后都可以接单、复数名词和不可以数名词。如：
Which pictures are from China?
哪些图像来自我国?
大学英语必备常识点
1)will/shall+动词原形 shall用于第一人称，常被will 所替代。will 在陈述句顶用于各人称，在寻求定见常常用于第二人称。will not=won’t shall not=shan’t例如：
Which paragraph shall I read first? 我先读哪一段呢?
Will you be at home at seven this evening? 今晚七点回家好吗?
2) be going to +不定式，标明将来。
a. 主语的意图，即将做某事。例如：What are you going to do tomorrow? 明日方案作啥呢?
b. 方案，组织要发生的事。例如：The play is going to be produced next month。这出戏下月开播。
c. 有痕迹要发生的事。例如：Look at the dark clouds, there is going to be a storm. 看那乌云，快要下雨了。
3) be +不定式表将来，按方案或正式组织将发生的事。例如：
We are to discuss the report next Saturday.咱们下星期六谈论这份陈述。
4) be about to +不定式，意为马上做某事。例如：
He is about to leave for Beijing. 他马上要去北京。
留心：be about to do 不能与tomorrow, next week 等标明清楚将来时的时刻状语连用。
Notice:be to和be going to
be to 标明客观组织或受人指示而做某事，be going to 标明片面的方案或方案。例如：
I am to play football tomorrow afternoon. 明日下午我去踢球。(客观组织)
I’m going to play football tomorrow afternoon. 明日下午我想去踢球。(片面组织)
5)如今进行时表将来时
下列动词的如今进行时标明将来时
go.come.fly.leave.start.begin.finish.end.arrive and so on.
she is leaving for Wuhan tomorrow.
6)一般如今时表将来
1)下列动词come, go, arrive, leave, start, begin, return的一般如今时可以标明将来，首要用来标明在时刻上已断定或组织好的作业。例如：
The train leaves at six tomorrow morning. 火车明日上午六点开。
When does the bus star? It stars in ten minutes. 轿车啥时分隔?非常钟后。
#人教版大学英语#
