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whether的用法

移动版    时间:2019-06-01 16:15

概括:这道题是利韧牌同学的课后英语练习题,主要是关于whether的用法,指导老师为许老师。whether,英文单词,英音[?wee?(r)],美音[?hw?e?, ?w?e-]。可用作连词(conj.)、代词(pron.)、名词(n.),表达对于某件事情的不确定性,表示的怀疑。

题目:whether的用法

解:

whether和if的用法分析

whether和if都可以引导宾语从句,表示“是否”,在口语或间接引语中两者可以互换使用.如:

I wonder if / whether I can get some advice from you.

Ask him whether / if he can come.

但在有些情况下,whether和if的用法有一定区别.

1.whether引导的从句常可以与连词or或or not直接连用,而if一般不能.如:

正:Let me know whether you can come or not.

误:Let me know if you can come or not.

2.当宾语从句提到句首时,只能用whether引导,而不能用if.如:

正:Whether it is true or not,I can’t tell.

误:If it is true or not,I can’t tell.

3.whether可以引导带to的不定式,if则不能.如:

正:I don’t know whether to accept or refuse.

误:I don’t know if to accept or refuse.

4.whether及其引导的成分可放于介词之后,作介词的宾语,但if不能.如:

正:I worry about whether I hurt her feelings.

误:I worry about if I hurt her feelings.

5.whether可以引导从句,作主语、表语或同位语,而if不能.如:

正:It was uncertain whether he would come.

误:It was uncertain if he would come.

正:His first question was whether Tom had arrived yet.

误:His first question was if Tom had arrived yet.

正:We must consider the question whether we will take these measures.

误:We must consider the question if we will take these measures.

举一反三

例1: 【whether的用法】[英语练习题]


思路提示:

whether和if的用法分析

whether和if都可以引导宾语从句,表示“是否”,在口语或间接引语中两者可以互换使用.如:

I wonder if / whether I can get some advice from you.

Ask him whether / if he can come.

但在有些情况下,whether和if的用法有一定区别.

1.whether引导的从句常可以与连词or或or not直接连用,而if一般不能.如:

正:Let me know whether you can come or not.

误:Let me know if you can come or not.

2.当宾语从句提到句首时,只能用whether引导,而不能用if.如:

正:Whether it is true or not,I can’t tell.

误:If it is true or not,I can’t tell.

3.whether可以引导带to的不定式,if则不能.如:

正:I don’t know whether to accept or refuse.

误:I don’t know if to accept or refuse.

4.whether及其引导的成分可放于介词之后,作介词的宾语,但if不能.如:

正:I worry about whether I hurt her feelings.

误:I worry about if I hurt her feelings.

5.whether可以引导从句,作主语、表语或同位语,而if不能.如:

正:It was uncertain whether he would come.

误:It was uncertain if he would come.

正:His first question was whether Tom had arrived yet.

误:His first question was if Tom had arrived yet.

正:We must consider the question whether we will take these measures.

误:We must consider the question if we will take these measures.

例2: 【关于if和whether的用法()thereislifeonthemoonisimpossible.答案是That我选择的是Whether注解告诉我根据impossible这一个信息词就可以排除Whether为什么啊?】[英语练习题]


思路提示:

我晕,怎么解答都这么复杂.我来讲一下吧,很简单的.

月球是有生命是不可能的.

如果按你的说法就变成:月球是有没有生命是不可能的(嘻嘻,觉得这还是人话吗?)

例3: whether的这种用法怎么用?Whethersleep(sleeping)atnoonisaseriousproblemtome?这句话中whether后的动词应该用原型还是动名词?[英语练习题]


思路提示:

首先,这不是一个问句,应该是个陈述句.意思是 是否睡午觉对我来说是个严重的问题.

whether此处引导主语从句(名词性从句中的一种),因而后面应该是动词原形,该怎么说怎么说.

例4: whether,if的用法和区别如题[英语练习题]


思路提示:

whether和if的用法区别

whether与if作“是否”讲,在用法上有相同之处,也有不同之处.

一、相同之处.

1.whether和if都能引导宾语从句,常置于see,ask,learn,tell,wonder,doubt,find out等动词之后.

如:He asked me whether/is I could help him.I want to know whether/if he lives there.

2.whether和if都可用it作形式主语从句中.如:it's uncertain whether/if he'll come this evening.

3.在be uncertain/doubtful之后,常用whether引导宾语从句,有时也可以用if,如:We are uncertain whether/if Mary will come.

二、不同之处.

1.whether可置于句首引导主语从句,而if不能.如:___the 2000 Olympic Games will be in Beijing is not known yet.A.whether B.If C.Whether D.That 答案是C.

2.whether可用在介词之后,引导宾语从句,而If则不能.如:Success depends on whether we make evough effort.

3.whether可引导表语从句,if则不能.如:The puestion is whether it is not worthdoing.

4.在名词之后引导同位语从句时,用whether而不用if.如:The puestion whether the students answered correctly should be decided by the teacher.

5.whether后可接不定式,而if不能.如:Please tell us whether to go or stay here.

6.在有些动词(如discuss)之后,只能用whether,而不用if引导宾语从句.如:We discussed whether we should close the shop.

7.在引导否定概念in宾语从句时,只能用if,而不用whether.如:he asked me if I hadn't finished my work.

例5: ***WHETHER和IF用法区别***大家踊跃发言[英语练习题]


思路提示:

whether与if作“是否”讲,在用法上有相同之处,也有不同之处.

一、相同之处.

1.whether和if都能引导宾语从句,常置于see,ask,learn,tell,wonder,doubt,find out等动词之后.

如:He asked me whether/is I could help him. I want to know whether/if he lives there.

2.whether和if都可用it作形式主语从句中.如: it's uncertain whether/if he'll come this evening.

3.在be uncertain/doubtful之后,常用whether引导宾语从句,有时也可以用if,如: We are uncertain whether/if Mary will come.

二、不同之处.

1.whether可置于句首引导主语从句,而if不能.如: ___the 2000 Olympic Games will be in Beijing is not known yet. A.whether B.If C.Whether D.That 答案是C.

2.whether可用在介词之后,引导宾语从句,而If则不能.如: Success depends on whether we make evough effort.

3.whether可引导表语从句,if则不能.如: The puestion is whether it is not worthdoing.

4.在名词之后引导同位语从句时,用whether而不用if.如: The puestion whether the students answered correctly should be decided by the teacher.

5.whether后可接不定式,而if不能.如: Please tell us whether to go or stay here.

6.在有些动词(如discuss)之后,只能用whether,而不用if引导宾语从句.如: We discussed whether we should close the shop.

7.在引导否定概念in宾语从句时,只能用if,而不用whether.如:he asked me if I hadn't finished my work.

I don`t know whether he will go.可以

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