作者:丁楠
一、stop ... from ... 阻止某人做某事
【考點(diǎn)說明】from是介詞,后邊需接名詞或動(dòng)名詞。如:
You can't stop him (from) going there. 你不能阻止他去那兒。
【知識(shí)串聯(lián)】stop ... from doing sth. = keep ... from doing sth. = prevent ... from doing sth. 阻止......做某事。這三個(gè)短語(yǔ)用在主動(dòng)語(yǔ)態(tài)中,stop和prevent構(gòu)成的兩短語(yǔ)中from可以省略,但keep短語(yǔ)中的from不可省略。各短語(yǔ)用在被動(dòng)語(yǔ)態(tài)中時(shí),from都不可省略。如:
The snow kept us from driving to school. 這場(chǎng)雪讓我們無法開車上學(xué)。
We were prevented from going home by the heavy rain. 大雨使我們不能回家了。
二、more or less 或多或少;大體如此
【考點(diǎn)說明】修飾數(shù)目時(shí)應(yīng)放在數(shù)詞后面,強(qiáng)調(diào)程度時(shí)放在be或助動(dòng)詞之后、行為動(dòng)詞之前。如:
There are 50 students more or less in our class. 我們班大約有50個(gè)學(xué)生。
His homework is more or less finished. 他的家庭作業(yè)差不多完成了。
He has more or less understood the text. 他基本上理解了課文。
【知識(shí)串聯(lián)】(1)or so大約;左右。通常用在數(shù)詞的后面。如:
I have 100 yuan or so.我大約有100元錢。
(2)the more ... , the less ...越......越不...... 如:
The more difficult the questions are, the less likely I am able to answer them. 問題越難,我就越答不上來。
三、neither ... nor ... 既不......也不......
【考點(diǎn)說明】連接兩個(gè)代詞做主語(yǔ)時(shí),謂語(yǔ)要遵循就近原則。如:
Neither you nor I am a student. 你不是學(xué)生,我也不是學(xué)生。
【知識(shí)串聯(lián)】neither, either和both都用于談及兩個(gè)人或兩件事物,either表示"兩者中任何一方",both表示"兩者都",它們都可以用作形容詞或代詞。類似短語(yǔ)還有:either ... or ... 或者......或者......,both ... and ... 雙方都。如:
Either you or he has been invited. 你和他都被邀請(qǐng)了。
Both Tom and Mary are good students. 湯姆和瑪莉都是好學(xué)生。