山西重点中学协作体高二下学期英语暑假作业 12 专项篇之单词句子
一、补全填空 1、联系上下文，根据首字母填写单词。 Every flu season it seems like we’re bombarded (炮轰, 轰击) with commercials for new and improved medicines promising to relieve te
rrible headaches and f___1___. But for many people around the world, the secret to avoiding a nasty or even fatal cold might lie in a better diet, not drugs. Researchers from the University of North Carolina at Chapel Hill, the Beltsville Human Nutrition Research Center in Maryland, and the Nestle Research Center in Switzerland have found that a deficiency of the mineral selenium ( 硒 ) may c___2___ to the spread of highly virulent strains of influenza virus. The team infected two g___3____ of mice—one that had sufficient selenium in their diets and one that did not — with a type of flu that also affects h___4___. The selenium-deficient mice were more l___5___ to get sick after being infected. More worrisome (令人不安的), the flu virus grew m___6___ virulent when it re-emerged for the selenium-deficient mice. Random mutations (变异) normally alter the genes responsible f___7___ designing the proteins on the virus’s surface. But in selenium-deficient mice, “it’s the exact opposite to what we expected,” says Beck, a researcher. The rapid mutation was instead occurring in genes that code for internal proteins. Those changes, she says, might reprogram the flu strain, making it more contagious (传染性的). Beck and her team are still uncertain exactly h___8___ selenium fits into the puzzle, but scientists know the mineral is necessary for antioxidant (抗氧化剂) activity in the body. without selenium, excess (过度的) free radicals wreak havoc (发泄, 报仇) on the viral (滤过性病毒) RNA, leading to those unexpected mutations, says Beck. Common sources of selenium include breads, meats and fish, foods that Americans eat in abundance, says Orville Levander, a chemist at the Beltsville Nutrition Center. But Levander points out that some areas in China l___9___ selenium in the soil, and people who live there require selenium supplements to a___10___ health problems. 2、用 who, whom, which, whose, that 填空，完成下面句子。 11. Ellen was a painter of birds and of nature, had withdrawn(脱 离) from the human society. 12. I was born in New Orleans, name will create a picture in our mind. 13. This is the boy without help I couldn’t have passed the difficult exam. 14. He passed the College Entrance Exam, makes his parents very happy. 15. Have you sent thank-you notes to your friends from you receive gifts? 16. Baotou is a beautiful city in 70% of the rare earth (稀土) in our country is made.
17. The things and people my grandpa told me still fresh in my mind. 18. Many children, parents are away working in big cities, are taken good care of in the village. 19. The sound of music is the first English film I have ever seen. 20. Mrs. Frank has two sons, both of work in Beijing now. 二、翻译 3、根据提示，把中文翻译成英文。 1. 在商业中，没有永远的敌人，只有永远的利益。 （permanent） ________________________________________________________________________ 2. 两个学生帮助我做了这个实验。 （assist） ________________________________________________________________________ 3. 他从失火的高楼内救出了三个孩子。 （rescue） ________________________________________________________________________ 4. 他向慈善事业捐款数千英镑。 （donate） ________________________________________________________________________ 5. 他已把早起锻炼当成了一种习惯。 （it 作形式宾语） ________________________________________________________________________ 6. 当我正要出门买东西的时候，他们来到我家。 （be about to） ________________________________________________________________________ 7. 阅览室现在不能使用，正在粉刷。 （have 使役结构） ________________________________________________________________________ 8. 计算机能辨别人的声音，这个想法让很多人大吃一惊。 （同位语从句） ________________________________________________________________________ 9. 这就是她能为她的儿子所做的一切。 （定语从句） ________________________________________________________________________ 10. 把这篇课文翻译成德语，他需要很长时间吗？（take） ________________________________________________________________________ 4、英译中 1.In recent years，great changes have taken place in our city，making it take on a new look.
2．After graduating from university，Tom applied for many jobs，but he has not found one which suits him yet.
3．In 2013，he performed on stage for the first time.Since then，his popularity has grown greatly.
4．Instead of going to school，Dong Hao joined the army.
5．He is a friend that you can trust.He has never broken his promise to anyone.
答案 1 、 1. fever 2. contribute 3. groups 4. humans 5. likely 6. more 7. for 8. how 9. lack 10. avoid 2、11 who 12 whose 13 whose 14 which 15 whom 16 which 17 that 18 whose 19 that 20 whom 3、1. In business, there is no permanent enemy but there is only permanent interest. 2. Two students assisted me with the experiment. 3. He rescued three children from the burning building. 4. He donated thousands of pounds to charity. 5. He has made it a habit to get up early and do exercise. 6. They came to my home when I was about to go out to do some shopping. 7. You can’t use the reading-room right now. They have it being painted /are having some people painting it. 8. The idea that computer can recognize a person’s voice surprises many people. 9. This is all that she can/is able to do for her own son. 10. Will it take him a long time to translate the text into German? 4、1．近几年来，我们城市发生了很大的变化，呈现出崭新的面貌。 2．大学毕业后，汤姆申请了很多工作，但还没有找到合适的。 3．2013 年，他第一次上台表演。从那以后，他越来越受欢迎了。 4．董浩没有去学校读书，而是去参军了。 5．他是一个可以信赖的朋友，他从来没有对任何人食言过。