同义词、近义词1. how soon, how often和how long
◆ how soon表示“要过多久以后,要到什么时候”的意思。用来对句中带有将来时态的句子进行提问。如:
He’ll come back in two hours.→How soon will he come back?
◆ how often表示“多长时间一次,是否经常”的意义,通常用来对sometimes,usually,never,seldom,often,always,every day,every two weeks等表示频度的副词或词组提问。如::
He writes to his mother once a month.→How often does he write to his mother?
◆ how long表示“多长时间”的意义,用来对句中带有for,unit(till),since,all the morning,from…to…等表示一段时间的状语提问。对某些动词(take,spend等)后面表示时段的名词提问时也用how long。如:
Mr. Black has lived in Shanghai for over two years
→How long has Mr. Black lived in Shanghai?
2.forget和leave
forget意为“遗忘某物”,指忘记一件具体的东西,但不能有具体的地点;leave意为“把某物遗忘在某处”,后应接具体的地点。试比较:
I forgot my umbrella yesterday.我昨天忘了带伞。
I've left my umbrella at home.我把伞忘在家里了。
3.think about 与think of
相同点:均为由think 构成的动词短语,都有“思考,想起”之意。
不同点:think about 指回想到过去所发生的事或想到某人, 也指考虑一件未做的事,强调“仔细考虑”的过程。Think of 指想起(某人,某事,某物)等,一般是粗略地想到。如:
Mr. Green is thinking about having a meeting. 格林先生正在考虑召开一次会议。
He always thinks of others more than himself. 他总是想别人的比自己的多。
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