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高考英语重点句型分析(十六)

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高考英语重点句型分析(十六)


  1.If burns are on arms or legs, keep them higher than the heart, if_possible. 如果烫伤的部位在臂部或腿部,如果可能的话就要把手臂或腿抬到高于心脏的位置。

  if possible 为状语从句的省略,其完整形式为 if it is possible.

  ①If possible, do it by yourself.可能的话,你自己做。

  ②If possible, I‘ll go to Beijing tomorrow.如果可能的话,明天我要去北京。

  拓展:

  if so 如果这样的话

  if not 如果不是的话

  if any 如果有的话

  if necessary 如果必要的话

  if ever 如果曾经有的话

  [即境活用1]

  —I hear Bob has been ill in hospital for days.

  —______, let‘s go to see him.

  A.If ever   B.If any  C.If possible   D.If so

  答案:D

  解析:考查省略句 if so“如果这样的话”。

  2.John was_studying in his room when he heard screaming. 约翰正在屋里学习,突然听到一声尖叫。

  when 并列连词,意为“这时”,相当于 and then. when 作并列连词用时,构成并列句,意为“就在这时,恰恰在这时”,多用在下列句型中:

  ...be doing...when... 正在……这时……

  ...be about to do...when... 正打算做……这时……

  be just going to do...when... 正要……这时……

  had just done...when... 刚做了……这时……

  be on the point of doing...when... 正要……这时……

  ①He was sleeping when there was a knock at the door.他正在睡觉,这时有人敲门。

  ②I was about to go out when someone knocked at the door. 我刚想出门,这时有人敲门。

  ③We had just begun to work when the machine broke down. 我们刚开始工作,这时机器坏了。

  ④The thief was on the point of putting his hand into the lady‘s handbag when the bus suddenly stopped.小偷正要把手伸进那位女士的手提袋中,这时公共汽车突然停了。

  [即境活用2]

  The children were playing football happily on the playground ______ it began to rain heavily.

  A.as   B.while   C.when   D.suddenly

  答案:C

  解析:句意为:孩子们正在操场上高兴地踢足球,这时天开始下起大雨。

,高考英语重点句型分析(十六)
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