______  to nuclear radiation, even for a short time, may produce variants(变异)of genes in human bodies.   

试卷相关题目

• 1The young lady prefers dressing up for a party to _____ by others.     

  A.be noticed

  B.being noticed

  C.having been noticed

  D.have been noticed

  开始考试点击查看答案
• 2When the Eiffel Tower was erected in 1889, at the world exposition, it was not very popular and came close to______down.  

  A.be torn

  B.tear

  C.tearing

  D.being torn

  开始考试点击查看答案
• 3While you are hurrying to the airport, _____ in a heavy traffic jam in a taxi is quite an unpleasantexperience.

  A.having caught

  B.being caught

  C.caught

  D.having been caught

  开始考试点击查看答案
• 4—What made your skin look so terrible?—______ to the sunlight for a long time．

  A.Because it was exposed

  B.After being exposed

  C.Being exposed

  D.Exposed

  开始考试点击查看答案
• 5In the traffic accident, his father came close to ____.

  A.be killed

  B.being killed

  C.kill

  D.killing

  开始考试点击查看答案
• 6The bird was lucky that it just missed______.   

  A.being caught

  B.to be caught

  C.catching

  D.caught

  开始考试点击查看答案
• 7We're looking forward to _____a chance to watch the opening ceremony of the London 2012 Olympic Games.     

  A.give

  B.be given

  C.giving

  D.being given

  开始考试点击查看答案
• 8After he became conscious ,he remembered  ______ and  ______ on the head with a rod.     

  A.to attack：hit

  B.to be attacked; be hit

  C.attacking；behit

  D.having been attacked; hit

  开始考试点击查看答案
• 9New ideas sometimes have to wait for years before _______.

  A.being fully accepted

  B.fully allowing

  C.having fully accepted

  D.fully allowed

  开始考试点击查看答案
• 10He kept silent over the matter because he had no intention to risk ______ in it.

  A.to involve

  B.being involved

  C.to be involved

  D.involving

  开始考试点击查看答案