#口语粉碎机#L1 Day 9【打卡序列10】

今天认真完成了晨读和作业9:

---whether和if的区别：

一、引导宾语从句

这时两者的含义区别很小,一般可通用.

但是,当whether与or not连成一个词组时,whether不可换用if.

若whether和or not不连在一起,在口语中可以用if取代whether,当然也可以用whether.

I don't care if/whether your car breaks down or not.我不在乎您的车是否是会出故障.

此外,还有三种情况值得注意：

(1)在介词后面只能用whether,不能用if.

I am not interested in whether you'll come or not.

(2)在动词不定式之前,只能用whether,不能用if.

He doesn't know whether to stay or not.

(3)在及物动词discuss后的宾语从句中,只能用whether,不能用if.

We discussed whether we should make a change in our plan.

二、引导主语从句

只能用whether,不能用if.

It is unknown whether he will come.

Whether the news is true remains a question.

三、引导表语从句

只能用whether,不能用if

The question is whether they can take our advice.

四、引导同位语从句常用whether

The question whether he'll come is unknown.

五、if可以用来引导一个否定的宾语从句,whether则不能用来引导否定的宾语从句,因为它表示正反两方面的选意义比较强.

Tell me if it is not going to rain,please.

六、if除引导宾语从句外,还可以引导条件状语从句,作“是否”解.在容易引起混淆产生歧义的情况下,就不可用if,而须用whether.

Please let me know if you intend to come.这个句子有两种解释：A：“请让我们知道你是否想来.” B：“如果你打算来,请让我们知道.”在书面语中,如果我们想表达的第一种含义,就得用whether来改写第一句.

Please let me know whether you intend to come.

通俗来讲,whether在大多数情况下都可以用,而if则不然,有wether和if时一般选wether不会有错,但是如果所需的意思是"如果",自然只能选if了.

---保持联系---keep in touch with，取得联系---get in touch with、estabilsh contact with.

---depend on:

vt.依赖(依靠,取决于,随...而定)，例句与用法:

1.Children depend on their parents for food and clothing.

小孩依赖他们的父母供给衣食.

2.It all depend on whether she like the boss or not.

一切都取决于她喜欢还是不喜欢这个老板.

3.I've been old enough to shift for myself ，I'll no longer depend on my father.

我已长大,可自己独立生活了,我将不再依靠我父亲了.

4.Depend on me.

相信我.

5.We can depend on his arriving here on time.

我们可以相信他会准时到来.

6.But that all depend on the specific circumstances.

不过,那要看具体情况而定.

7.All living things depend on the sun for their growth.

万物生长靠太阳.

8.A lot will depend on how she responds to the challenge.

在很大程度上将取决於她对这一难题的反应.