一、倍数增减的表示法
　　1) Force N1 _______________(比力N2大2.5倍).
　　2) This substance _______________(反应速度是另外那种物质的三倍).
　　3) The earth _______________(是月球大小的49倍).
　　4) The landlord _______________(想将租金提高三分之一).
　　5) They _______________(计划将投资增加一倍).
　　二、时态
　　1) Be quick, _______________(否则等我们到达教堂时婚礼就已经结束了).
　　2) When she got home, _______________(孩子们已经睡着了).
　　3) When I prepare for the college entrance examination, _______________(我姐姐将在海边度假).
　　4) I_______________(一上午都在修改我的简历).
　　5) Do you often go on holiday? _______________(不，我已经有五年没有度假了).
　　6) He joined the army in October, 2001. _______________(他参军已五年了).
　　三、被动语态
　　1) The blackboard and chalk _______________(正在被电脑和投影机所取代).
　　2) The book _______________(到今年年底就将已出版).
　　3) Computer models _______________(可以用来演示细胞工作的方式).
　　4) When the bill of fare was brought, _______________(我惊呆了，价格大大超出了我的预料).
　　5) _______________(必须立即采取有效措施)to eliminate sandy storms.
　　四、情态动词
　　1) The phone is ringing, _______________(但是没人接听。她一定不在家).
　　2) I can’t find my sunglasses. _______________(我可能昨天落在咖啡店里了).
　　3) You screamed in your sleep last night. _______________(你一定梦见什么可怕的东西了).
　　4) It’s a pity. _______________(你本应该邀请她来参加你的毕业典礼的).
　　5) _______________(其实我没必要穿上我最好的套装去参加那次聚会的); most of the guests were wearing jeans and sweaters.
　　五、虚拟语气
　　1) I wish _______________(我年轻的时候有你们这样的机会).
　　2) If only _______________(他知道这病是可以治好的)! Then he would not have killed himself.
　　3) —— Would you like him to paint your door with yellow stars?
　　—— I’d rather he _______________(漆成蓝色的，而且不带任何装饰).
　　4) It’s high time that _______________(采取措施解决交通堵塞的问题).
　　5) Hugh usually talks _______________(仿佛在大会上发表演说似的).
　　6) We insist that _______________(让杰克立刻进医院).
　　7) It was advised that _______________(在居民区设立更多的流动商店).
　　8) His proposal was that _______________(他们成立一个专门委员会来检查这个问题).
　　9) We are going to discuss his suggestion that _______________(取消期中考试).
　　10) It is ridiculous that _______________(我们在一个总是下雨的国家还缺水).
　　11) But for his help, _______________(我们就不会以这么低的价格租到房子了).
　　12) I used my calculator; _______________(否则，我会花更长的时间才能算出这道题).
　　13) Were I in your place, _______________(我会毫不犹豫地抓住机会).
　　14) He walked lightly _______________(以免惊醒婴儿).
　　六、不定式
　　1) It was a great achievement _______________(10个月建成一栋24层的楼).
　　2) It is necessary _______________(我们在考试前好好地睡一晚上觉).
　　3) It is generous _______________(你把这么多钱捐给灾区人民).
　　4) The teacher decided _______________(不惩罚那些上课迟到的学生).
　　5) Mr. Green was wondering _______________ (是否去看望在法国的儿子).
　　6) The gardener _______________(刚才警告我不要在中午给花浇水).
　　7) We _______________(请他给我们做有关现代艺术的讲座).
　　8) He feels it challenging _______________(在这么大一所大学做学生会主席).
　　9) We hope to have more opportunities _______________(把我们在课堂上学到的东西应用于实践).
　　10) Sally Ride was the first _______________(探索外部空间的美国妇女).
　　11) They lifted a rock _______________(结果砸了自己的脚).
　　12) He was surprised _______________(在这个山村遇见一个中学同学).
　　13) I am sorry _______________(占用了您这么多时间).
　　14) I happened _______________(在他冲进来的时候站在门口).
　　15) She doesn’t like _______________(被当作客人).
　　16) If you want to save money, you’d better _______________(到校园书店买旧书).
　　17) We were made _______________(进屋之前在垫子上擦擦脚).

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