八年级英语下册Unit3Couldyoupleasecleanyourroom短语语法知识点汇总

4. It is the parents’ job to provide a clean and comfortable environment at home for their children. (P. 22)

(1) It is+名词+to do sth.表示“做某事是……”，其中的it为形式主语，后边的动词不定式才是真正的主语。

翻译：It’s my job to look after you. ____________________________________________ (2) provide表示“提供”时，常用的结构为：provide sb. with sth.或者provide sth. for sth.“为某人提供某物”；

【拓展】offer也表示“提供”，但结构有所不同，常用于“offer sb. sth.或者offer sth. to sb.”结构中，意为“为某人提供某物”。

翻译：The government provided a lot of food and clothes for the flooded area. (受洪灾地区)

=The government provided the flooded area with a lot of food and clothes.

___________________________________________________________________ 5. Any anyway, I think doing chores is not so difficult. (P. 22) (1) anyway用作副词，表示“而且、加之”，也可以表示“即使这样、无论如何”。 翻译：It’s expensive and anyway the size is too small.

翻译：Anyway, we should have a try. _________________________________________ (2) doing chores是动名词，在句中用作主语，谓语动词用单数形式。 翻译：Doing morning exercise is good for us.

6. I think it is important for children to learn how to do chores and help their parents with housework. (P. 22)

(1) 本句结构为“It’s+adj.+for sb.+to do sth.”结构，意为“做某事对某人来说……”，此结构中的形容词多为描述事物特征的词，如easy, important, dangerous, necessary等。 例如：

翻译：It is important for you to study hard. ______________________________________ 翻译：It is not easy to learn a foreign language. ___________________________________ 【拓展】It’s+adj.+of sb.+to do sth.意为“某人做某事是……的”，此结构中的形容词多是kind, nice, right, wrong, clever, foolish, polite等描述行为者性格、品质的词。 翻译：It is very kind of you to lend me so much money.

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(2) how to do chores是“特殊疑问词+动词不定式”结构，作learn的宾语，动词不定式常与what, who, how, where, when等特殊疑问词连用，在句中作主语、宾语、表语等。

翻译：When to start is not decided yet. ________________________________________ 翻译：The question is what to do next. ________________________________________ 7. Children these days depend on their parents too much. (P. 22) depend on/upon意为“取决于……；由……决定；依靠”

翻译：You can accept or refuse the gift. It depends on your personal choice. _________________________________________________________________ 翻译：We shouldn’t always depend on our parents.

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8. Doing chores helps to develop children’s independence and teaches them how to look after themselves. (P. 22)

independence用作不可数名词，表示“独立、自主”，形容词为independent，意为“独立的”。 例句：The Declaration of Independence was made in America in 1776. 《独立宣言》于1776年在美国宣布。

9. Since they live in one house with their parents, they should know that everyone should

do their part in keeping it clean and tidy. (P. 22)

(1) since此处表示“因为、既然”，引导原因状语从句，常位于句首。 翻译：Since you don’t know the boy, I will ask someone else.

_________________________________________________________________ (2) do one’s part in (doing) sth.意为“尽自己的职责去做某事”。

翻译：The president asked every citizen to do his part in saving water. _________________________________________________________________ 10. As a result, he often fell ill and his grades dropped. (P. 22)

as a result意为“因此、结果”，在句中作状语；as a result of表示“由于”，后接名词或者代词，相当于because of。

翻译：He got up very late today. As a result, he missed the first bus. ________________________________________________________________ 翻译：He was late as a result of the heavy rain.

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11. The earlier kids learn to be independent, the better it is for their future. (P. 22) 本句为“the+比较级，the+比较级”结构，表示“越……越……”。 翻译：The harder you study, the better grades you can get.

________________________________________________________________ 翻译：The longer the war lasts, the more the people there will suffer. ________________________________________________________________

【语法讲解】 情态动词could的用法

情态动词could可以用来表示请求或建议，具体用法如下： 1. 表示请求或者允许

could表示请求或允许时，并不表示过去，只表示语气更加委婉，表示委婉的请求和陈述看法时，回答时用can。

Could I use your cell phone for a while?

Could you tell me how I can get to the railway station? ---Could you come to my birthday party?

---Sorry, I can’t. I have to stay at home to look after my mother. 2. 表示建议

情态动词could表示建议做某事，意为“可以”，语气比can更加委婉。 You could ask your doctor to check you over and do a few tests.

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