在比较从句中通常把和主句重复的部分省掉。

詹姆斯比苏姆更喜欢戏剧。（ Susan 后省略了 enjoys the theatre ）James enjoys the theatre more than Susan ,

汤姆有跟杰克一样多的书。（ Jack 后省略了 has many books ）Tom has as many books as Jack ,

布朗说法语和英语一样流利。（ as 后省略了 he speaks ）Brown speaks French as fluently as English ,

与其说她害怕，倒不如说她生气。（ than 后省略了 She was ）She was more angry than frightened ,

怀特夫人没有看上去那样年轻。（ looks 后省略了 young ）Mrs White is not so young as she looks ,

情况要比表面上看起来微妙得多。（ seems 后省略了 delicate ）The situation is much more delicate than it seems ,

他现在工作比过去努力多了。（ than 后省略了 he worked hard ）He is working harder than before ,

我们学校的学生和他们学校的学生一样多。（ as 后省略了 there are many students ）There are as many students in our school as in their school ,

他喝酒稍有一点过量。（ than 后省略了 it ）He drank a little more than was good for him ,

你花掉的钱比我预料的多。（ expected 后省略了 that you should spend ）You spent more money than I had expected ,

我想要的许多书如数借到。I was able to borrow as many books as I asked for ,

I was able to borrow as many books as what I asked for ,

你越来越苗条了。 (slimmer后省略了 than you were before)You are getting slimmer,

You are getting slimmer than you were before,

不仅仅只是瞎子才犯如此愚蠢的错误。有时候，眼睛看得见的人也做出同样的蠢事。（ foolishly 后省略了 as blind men act ）it is not only blind men who make such stupid mistakes , People who can see sometimes act just as foolishly,

it is not only blind men who make such stupid mistakes , People who can see sometimes act just as foolishly as blind men act,

他比我高。He is taller than I am ,

主句和从句中可同时省略一些成分。

越快越好。The sooner,the better,

The sooner this is done, the better it will be,

不劳则无获。No pains, no gains ,

If you take no pains, you will make no gains ,

我们在省略句子某些成分时，有时还必须加上适当的替代词，如 do或者 so或者 one 等，以保持句子意思的完整。

do 用来代替动词或动词加其他成分。

我比他更了解你。（ he does 等于 he knows you ）I know you better than he does ,

你完成了你的工作吗Have you finished your work?,

是的 我昨天完成了。（ did 替代 finished my work ）Yes, I did yesterday ,

so 在 expect 或者think或者 imagine 或者hope 或者suppose或者 believe ，期望、思考、想象 希望 想 相信 等词后面，代替单词、词组或句子。

她成了我的一个忠诚的朋友，而且一直如此。（ so 替代 a loyal friend ）She became a loyal friend to me and remains so ,

 她曾到过伦敦吗Has she ever been to London?,

 我想她没去过。I don't think so ,

I don't think she has been to London ,

可使用 do so或者 do that ，这样做 这样做，来代替动词加宾语。

他说他帮我整理床铺的，但是他没有这样做。（ do so 代替 make the bed for me ）He said he would make the bed for me, but he didn't do so ,

他们晚饭后打牌，我在一旁观看。（ do that 代替 play cards ）They played cards after supper and I watched them do that ,

not 代替否定的句子，用法和 so 相似。

 明天会下雨吗Will it rain tomorrow?,

我希望不会。I hope not ,

I hope it won't rain tomorrow ,

 你下星期能来吗Can you come next week?,

 恐怕我不能来。I'm afraid not ,

I'm afraid that I can not come ,

the same 可代替词组或从句。

母亲扫地 孩子也跟着干。（ the same 代替 swept the floor ）The mother swept the floor and her child did the same ,

凯特点了两个煎鸡蛋，我也点了同样的菜。（ the same 代替 two fried eggs ）Kate ordered two fried eggs ,I ordered the same ,

这些桔子和我们上次吃的一样酸。他们味道一样。（ the same 代替 as sour as the last ones we had ）These oranges are just as sour as the last ones we had ,They taste the same ,

one 是不定代词，常用来代替可数名词。其复数形式是 ones 。

 我没有书，你能借我一本吗I haven't got any books ,can you lend me one?,

白色套装比蓝色套装更配这顶帽子。The white dresses go with the hat better than the blue ones ,

你说了算！up to you ！,

相信我。Believe me ,

帮我一下。Give me a hand ,

没关系。Doesn't matter ,

我也一样。Me too ,

还没有。Not yet ,

太糟糕啦！Too bad !,

当心！Mind you ！,

 要去哪儿？Where to?,

当然，没问题。Sure no problem ,

 太贵了吧？That much,

滚开！Get lost !,

原来如此So that explains it ,

太奇怪了，不真实。Too strange to be true !,

 了解我的意思吗？See what I mean?,