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高二英语教案:第六单元疑难点击

来源:未知 2013-10-09 字体大小: 分享到:

  1. To ensure safety, the train is controlled by an advanced computer system.

  ensure用作动词,意思是\"确保;担保\",常用于以下句型:

  ①ensure that... 保证......

  I tried to ensure that everybody understood the instructions. 我设法确保每个人都明白这个说明。

  I can\'t ensure that he will arrive there in time. 我不能保证他及时赶到那儿。

  ②ensure sb. sth. 确保某人某事/物

  This medicine will ensure you a good sleep. 这药会确保你睡个好觉。

  2. It will not be business as usual in the future.

  as usual 意思是\"像往常一样;一如往常\"。

  As usual, there weren\'t many people at the meeting. 像往常一样,来开会的人不多。

  Yesterday morning she came into the classroom as usual. 昨天早上她像往常一样进入教室。

  usually为副词,也有\"通常;往常\"的意思,常放在be后、情态动词或助动词与动词之间,为加强语气也可置于句首。

  You don\'t usually arrive late, do you? 你通常不迟到的,是吗?

  Usually she gets up very early. 通常她起得很早。

  3. They are careful about what they eat and exercise regularly.

  be careful意思是\"注意;当心\",常用于以下句型:

  ①be careful to do sth.

  Be careful not to be late for class. 小心上课不要晚了。

  ②be careful (that)...

  Be careful that you are not late for class. 注意上课不要迟到。

  ③be careful about / of (=take care of)

  Be careful of your health. 注意你的身体。

  ④be careful (in) doing sth.

  Be careful (in) crossing the road. 过马路时要小心。

  ⑤be careful with sth.

  Be careful with your work. 工作要认真。

  4. Advances in medical science have also allowed us to deal with new diseases, such as SARS.

  deal在句中可用作及物动词或不及物动词:

  ①用作不及物动词,常与with连用,意思是\"对付;处理\"。

  He seemed to be quick-tempered,

  but was actually not difficult to deal with. 他似乎性子急躁,但实际上并不难相处。

  He knows how to deal with children. 他知道怎样对付孩子。

  ②用作及物动词,意思是\"分配;给予\"等。

  I tried to deal justice to all men. 我力求公正地对待所有的人。

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