◎agreeon表示“(两人以上)就……取得一致意见,在……方面意见一致”,其主语多为复数形式,宾语是表示事、计划等的名词,而不是表示人的名词或代词,它可以与agree in doing sth替换。表示经过协商,讨论或谈判而就某事双方取得了一致意见用on.
They agreed on the plan.
=They agreed in doing the plan. 他们对这个计划意见一致。
We agreed on leaving for Beijing the next day.
Why can they never agree on something?
◎ agreeabout sth 涉及讨论的题目
They never agree about politics.
They all agree about that.
特别提示
agree with也可以表示“某人适应(食物、气候等)”。
The weather doesn’t agree with me. 我不适应这种天气。
(2)disagree是agree的反义词,相当于not agree。
2.be able to / can
be able to与can 都有“会”“能够”的意思。
如:No one can do it.=No one is able to do it.
当表示现在或过去“能力所及”时,两者可通用。
He can/ is able to speak German.
I could /was able to run away fast when I was a boy.
但两者用法也有区别:
1. be able to 侧重强调能力,语气上要比can强一些。可用于多种时态,还可以和某些情态动词连用,其后接不定式。
No one is able to do it.
He was able to swim when he was quite young.
No one was able to answer the question.
I’m sorry I haven’t been able to answer your letter.
I’ve not been able to find the air ticket.
I haven’t been able to get in touch with her.
They will be able to finish the work tomorrow.
I shall be able to speak English well.
You might be able to catch up with them.
II. can也可表示能力,这时它和be able to同义,但它只有现在和过去两种时态形式,不能和其它情态动词连用。
Look! I can swim now.
My father could speak five languages.
III. can还可以表示“请求和允许“,而be able to则不能。
Can I carry your bag?
Can you help me?
IV. be able to的过去时还可以表示一种“经过努力做到了”的意思。Can的过去式则没有这种意义。
He started late, but he was able to catch the eight o’clock train.
3.begin/ start
begin表示“开始”,其内涵是“使处于进程中”。例如:Knowledge begins with practice.从实践开始。
start 表示“开始”,其内涵是“起程”。例如:The meeting began last week.次会议是上星期开始的。会议是个过程,在这个意义上用begin 恰当。再如:A thousand-li journey is stared by taking the first step.千里之行,始于足下。所包含的意义是“起步”,所以用start恰当。
4.borrow/ lend/ keep
[辨析] 这两个动词都有“借”的意思。
1) borrow指向别人借东西(借入),常与from连用。即borrow sth from sb. (somewhere) 向某人或某处借某物 例如:
May I borrow your pen? 我可以借用一下你的钢笔吗?
I borrowed a dictionary from Li Lei yesterday. 我昨天向李磊借了一本字典。
Do you often borrow books from the library? 你经常从图书馆借书吗?
2) lend 指把东西借给别人(借出)。一般后面带双宾语。表示“把某物借给某人”,用lend sb sth=或lend sth to sb 例如:
I often lend her money. 我经常借给她钱。
You mustn’t lend it to others. 你一定不要把它借给别人。
Thank you very much for lending the dictionary to me. 非常感谢你把词典借给了我。
I have lost my pen. Would you please lend me yours? 我把钢笔弄丢了,你能把你的借给我吗?