2021年6月大学英语四级成绩查询时间:2021年6月大学英语四级语法知识

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【篇一】2021年6月大学英语四级语法知识

　　比较：because, since, as和for

　　1)　because语势，用来说明人所不知的原因，回答why提出的问题。当原因是显而易见的或已为人们所知，就用as或 since。

　　I didn't go, because I was afraid.

　　Since /As the weather is so bad, we have to delay our journey.

　　2)　由because引导的从句如果放在句末，且前面有逗 号，则可以用for来代替。但如果不是说明直接原因，而是多种情况加以推断，就只能用for。

　　He is absent today, because / for he is ill.

　　He must be ill, for he is absent today.

【篇二】2021年6月大学英语四级语法知识

　　though, although

　　注意： 当有though, although时，后面的从句不能有but，但是 though 和yet可连用

　　Although it's raining, they are still working in the field.

　　虽然在下雨，但他们仍在地里干活。

　　He is very old, but he still works very hard.

　　虽然他很老，但仍然努力地工作。

　　Though the sore be healed, yet a scar may remain.

　　伤口虽愈合，但伤疤留下了。 (谚语)

【篇三】2021年6月大学英语四级语法知识

　　方式状语从句通常由as，as if，as though，the way，what引导;

　　eg：Always do to the others as you would be done by.

　　When enter rome do as the romans do.

　　(1)as从句带有比喻的含义，意思是"正如…"，"就像";

　　(2)as if/though："仿佛……似的"，"好像……似的";

　　有时用虚拟语气，有时不用;

　　eg：They completely ignore these facts as if (as though) they never existed. (与事实相反，谓语用虚拟语气。)

　　He looks as if (as though) he had been hit by lighting.

　　(与事实相反，谓语用虚拟语气。)

　　It looks as if the weather may pick up very soon.

　　(实现的可能性较大，谓语用陈述语气。)

　　(3)the way：可以连接两个句子，表达就像……一样;

　　eg：I should do the job the way my father did.

　　Many Europeans now apparently view the US. the way many Americans view Mexican as a cheap place to vacation, shop and party.

　　(4)what：就像，犹如;

　　eg：Air is to man what/as water is to fish.

　　句型：A is to B what C is to D.

　　eg：A1 Gore calls global warming an "inconvenient truth," as if merely recognizing it could put us on a path to a solution.

　　put sb. on a path to a solution：找到解决的办法

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