1.大雪使学生们无法上学。(prevent)
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2.学会如何充分利用时间永不嫌晚。(too…to)
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3.我最终以合理的价格买到了那台心仪已久的电脑。(manage)
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4.他在一些不重要的事情上花费时间太多，这导致了整个计划的失败。(which)
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5.如果你真的想解决问题，你必须在情况变得更糟之前，立即采取行动处理它。(action)
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1. 吉姆不假思索地回答了老师的问题。(hesitation)
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2. 青年人很有必要学会对自己所做的事情负责。(essential)
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3. 这份工作要求太高, 没有几个人能胜任。（So…）
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4. 网上购物虽然便捷，但个人信息的安全问题不容忽视。(while)
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5. 出国学习会使学生受益匪浅，但是他们也有可能会面临一系列前所未有的挑战。（likely）
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1. 他以前从未做过这种工作,但是我相信他会和同事们协调得好.
He's never done this type of work before, but I'm sure he will _____   ______  with his workmates.
2 . 他沉溺于玩电脑游戏,这使他妈妈很担扰.
He _____  _____  _____  playing computer games, which made his mother worried.
3. 我告诉他别乱动我的东西.
I told him to  _____  my things  _____.
4. 我开始对这儿的交通感到烦扰.
I am beginning to _____  _____  _____  the traffic here.
5. 我们正在为有困难的家庭募捐.
We are collecting money for families _____  _____.
6. 你去英格兰,我也要去英格兰.
I, _____  _____  _____ you, am going to England.

1. "They didn't take measures in time", the expert said firmly and angrily, "otherwise the
     explosions ___________." (happen)
    "他们没有及时采取措施,"专家坚定且愤怒地说道,"否则爆炸不会发生."
2. Soon after getting off his horse, the captain appeared at the second storey windows, _______
     nothing but trees. (see)
   下马不久,上尉就出现在二楼的窗口了, 从那里除了树木他什么也没看到.
3. Rosalyn loves sports. She is proud _________ competitions and to have broken a record by
    running 800 meters this year. (participate)
    罗莎琳热爱运动.她为今年参加比赛并打破800米赛跑的记录而感到骄傲.
4. _________ should be no reason for treating one's neighbors as strangers. (occupy)
   工作繁忙不应该成为"对面不相识"的借口.
5. He went on a bus tour with a group of people, _________ before. (travel)
   他和一群人乘坐巴士旅行,这群人中的大多数以前从没旅行过.
6. My son has been away from home for about 2 weeks. I'm looking forward to ________. (hear)
    我儿子离家差不多两周了.我盼望着收到他的来信.
7. I think that only in this way _________ the knowledge and skills needed for my job. (acquire)
   我认为只有通过这种方式我才能获得工作所需要的知识与技能.
8. _______ that China produces one third of the world's cigarettes. (astonish)
    令人震惊的是全世界三分之一的香烟是由中国生产的.
9. Even though Tony had been so clever, he would have to be rebuilt- you cannot have _________
   with machines.(fall)
   尽管托尼很聪明,他还得作一番改造--总不能允许女人与机器人相爱吧.
10. It's time for me to quit smoking, for I do hope to live as ________as my grandfather has. (healthy)
      我该戒烟了,因为我真的希望能过着像我的祖父一样长寿健康的生活.

1. _____________________ is still a puzzle to us.(lay)
    它们什么时候产的卵对于我们仍然是一个谜.
2. Could you tell me ___________________ on marriage when she was young ?(chance)
    你能告诉我当她年轻的时候为什么拿她的婚姻冒险吗?
3. Where is my English dictionary ? It was here a moment ago. Someone _______ by mistake.(take)
    我的字典在哪?它刚才在这儿的.肯定有人拿错了.
4. This morning, as I was working, a man ______ stepped into my shop and begged me for
    some money.(dress)
   今天早晨,当我正在工作的时候,一个衣衫褴褛的人走进我的商店,向我讨钱.
5. I can't imagine _______________ when they received these Christmas presents.(how)
    我无法想像当收到这些圣诞礼物时,他们多么激动.
6. It's a small informal party among our old classmates-you _________________ .(need)
    这是我们老同学之间的一个小型的非正式的聚会,你不必盛装打扮.
7. Your words made Tom angry yesterday, so you ________________ to him then.(ought)
    昨天你说的话使汤姆生气,那时你应该向他道歉的.
8. Mr. Smith _____________ by teaching ten years ago and he gained much experience from
    his work.(earn)
    史密斯先生十年前靠教书谋生,并且从这个工作中获得很多经验.
9. The girl as well as her classmates _______ the bird outside the window when their teacher
    came in.(stare)
   这个女孩和她的同学正凝视着窗外的那只鸟时,他们的老师走进来了.
10. The fact _____________ learning languages delighted his parents very much.(gift)
     他在语言学习方面有天赋这一事实使他的父母非常高兴.