1.Teenagers ______their health because they play computer games too much.A.have damaged B.are damaging C.damaged D.will damage2.The telephone_____,but by the time I got indoors,it stopped.A.had rung B.was ringing C.rings D.has rung3.Have you got any

1.Teenagers ______their health because they play computer games too much.A.have damaged B.are damaging C.damaged D.will damage2.The telephone_____,but by the time I got indoors,it stopped.A.had rung B.was ringing C.rings D.has rung3.Have you got any
1.Teenagers ______their health because they play computer games too much.
A.have damaged B.are damaging C.damaged D.will damage
2.The telephone_____,but by the time I got indoors,it stopped.
A.had rung B.was ringing C.rings D.has rung
3.Have you got any job offers?--No,I______.
A.waited B.had been waiting C.have waited D.am waiting
4.I called Hannah many times yesterday evening,but I couldn't get through.Her brother______on the phone all the time!
A.was talking B.has been talking C.has talked D.talked
5.--Did you watch the basketball match yesterday?
--Yes,I did.You know,my brother______in the match.
A.is playing B.was playing C.has played D.had played
6.The wet weather will continue tomorrow when a cold front______ to arrive.
A.is expected B.is expecting C.expects D.will be expected
我急用.选完答案后,简要说明原因.

1.Teenagers ______their health because they play computer games too much.A.have damaged B.are damaging C.damaged D.will damage2.The telephone_____,but by the time I got indoors,it stopped.A.had rung B.was ringing C.rings D.has rung3.Have you got any
1B 不强调过去对现在的影响,表示一种状态
进行时表示持续性的动作
2B 要结和语境,强调电话响的那一情况（当 我进门）
3D 现在完成时强调现在,回答是No,说明动作还在延续,是持续的动作.
4A 要结和语境,昨天打电话时打不通,是因为当时她哥哥在用,强调“正在”
5B 解法同第四题
6A is expected to 表示预期的
以上题目,我大都之前做过的,相信我吧!

我觉得答案是c,b,b,a,b,d

1.B 现在进行时，因为后面也没用过去时，表明是现在还在发生的一种现象或状态。
2.B 在现在的动作过去进行的用过去进行时。
3.D 个人认为如果是B应该用have 不太确定哦！
4.A 同理，若是B应是had
5.D
6.A 确定

1A "because they play computer games too much"暗示已经有了坏的结果。用完成时表明正是因为玩了太多的电脑才造成搞坏了身体这个结果。（现在完成时——对现在造成的影响）
2B "stopped"之前所一直发生的事情就是电话铃在响，直到进门时结束，符合过去进行时。
3D "No"则证明提问者所提问的还没完成，动作仍在继续。用现在进行时。但个人认...

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1A "because they play computer games too much"暗示已经有了坏的结果。用完成时表明正是因为玩了太多的电脑才造成搞坏了身体这个结果。（现在完成时——对现在造成的影响）
2B "stopped"之前所一直发生的事情就是电话铃在响，直到进门时结束，符合过去进行时。
3D "No"则证明提问者所提问的还没完成，动作仍在继续。用现在进行时。但个人认为，如果答案中有完成进行时，选它会更好，因为事情给现在造成了影响（主任没有工作）且动作还在继续。 4A 所要的答案是要强调每次打电话时所发生的状况（ Hannah 的哥哥在他打电话之前一直用着电话）
5B 讲述过去的那个时刻他哥哥正在队里正在进行比赛。
6A 条件状语从句——主将从现原则。再加上expect这个动作有被动意。

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