? [析] must 加动词原形表达一种比较肯定的推测,而表示否定的推测则要用can't。
? [误] My grandpa is over eighty but he is able to read without glasses.
? [正] My grandpa is over eighty, but he can read without glasses.
? [析] can (could) 多用于表达客观的事实,主观能力,而be able to 则多用于表达主观的意愿。
? [误] She doesn't answer the doorbell.? She should be asleep.
? [正] She doesn't answer the doorbell. ? She must be asleep?
? [析] should 用于现在时态的句子中应译为应该,如:You should do your homework right away. 而 must加动词原形表示一种推测。
? [误] Do you like to go with us?
? [正] Would you like to go with us?
? [析] Do you like问的是习惯,如:Do you like swimming? 而would you like是一次性的邀请。
? [误] I am used to get up early in the morning.
? [正] I am used to getting up early in the morning.
? [析] used to 共有三种用法,① 表示过去的习惯,如:I used to live with my parents. ?② 表示?过去的习惯延续到现在,如:I am used to swimming in the river. ③ 用于被动语态,如: ?Oil is? used to cook?
? [误] To play with the children are very interesting.
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