大學(xué)英語(yǔ)四級(jí)考試涉及的語(yǔ)法知識(shí)點(diǎn)多、涉及面寬，對(duì)不少考生來說都是一個(gè)難題。希望通過本專題的學(xué)習(xí)，考生能對(duì)四級(jí)語(yǔ)法有更全面的掌握！

2. 方式狀語(yǔ)從句：

方式狀語(yǔ)從句通常由as，as if，as though，the way，what引導(dǎo)；

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

When enter rome do as the romans do.

（1）as從句帶有比喻的含義，意思是"正如…"，"就像"；

（2）as if/though："仿佛……似的"，"好像……似的"；

有時(shí)用虛擬語(yǔ)氣，有時(shí)不用；

eg：They completely ignore these facts as if (as though) they never existed. （與事實(shí)相反，謂語(yǔ)用虛擬語(yǔ)氣。）

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

（與事實(shí)相反，謂語(yǔ)用虛擬語(yǔ)氣。）

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

（實(shí)現(xiàn)的可能性較大，謂語(yǔ)用陳述語(yǔ)氣。）

（3）the way：可以連接兩個(gè)句子，表達(dá)就像……一樣；

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，猶如；

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：找到解決的辦法；

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