八年级英语下册阅读理解专项练习4Word文档下载推荐.docx

1、B.Because there wont be any spare land, new cities will have to be built in the sea. Some cities on water will have two levels（层）. People will live on the upper level; the lower level will be used for traffic, shops and factories. C.Biotechnology（生物技术） will make food better and healthier. Plants tha

2、t are not affected（影响） by insects or illnesses will be developed. The taste of fruit and vegetables will be better and food will be kept longer. D.New technology will be used to make TVs that are only 5cm thick. They will have pictures that are as clear as photos. Electrical appliances（家用电器） will be

3、 quieter and will be controlled by computer; they will also use 50% less power. E. Many new ways to cure illnesses will be successful using products of genetic engineering（基因产品）. Cures will be found for the flu and the common cold. However, some new illnesses will appear. 1. Cars using solar power o

4、r electricity will cause fewer accidents and less pollution. T F2. People will be able to live in the new cities in the sea. F 3. Biotechnology will help divide food into two groups: better food and healthier food. 4. Electrical appliances will save 50% of power because they are controlled by comput

5、er. 5. Genetic engineering can help doctors to cure illnesses. 6. The information above is about the history of the development of modern science. 参考答案 1. T 由A段中cleaner和safer可知。2. T 由B段可知。3. F 由C段第一句可知。4. F they are controlled by computer不是“省电”的原因。5. T 由E段第一句可知。6. F 由开头Read the following information

6、 about things that may happen in ten years.可知。阅读理解17A strange thing happens to nearly everybody at night. They turn off the lights，pull up the covers and close their eyes. Six or seven sleeping hours later，they wake up again. Strange，isnt it?Sleep puzzles science. Scientists and doctors would rather

7、 talk about why one cant fall asleep. They are not sure what causes sleep. The best conditions for sleep are good health and meals neither too big nor too small. No worries and a comfortable place are important，too. They advise against two in bed.Strange things happen during sleep. For example，they

8、move often. You would feel tired if you didnt. You also dream. Part of your brain is still awake when you dream. Dreaming happens when the memory and imagination in parts of your brain are still awake. Experiments have shown most of us dream in color. Bad dreams may be caused by stomachache.Dont wor

9、ry if you dream. Some great stories and poems were begun while their writers slept. 1. Sleep puzzles scientists because they are not certain _.A. why one cant fall asleep B. why one wakes upC. both A and B D. what causes sleep 2. The best conditions for sleep are _.A. good healthB. a meal neither to

10、o big nor too smallC. no worriesD. good health，limited meal，no worries and a good place 3. You would feel tired during sleep if you _.A. moved too often B. slept on your backC. didnt move D. went to sleep late 4. The best title for the passage is _.A. How can You Get a Good SleepB. The Strangeness o

11、f SleepC. What Happens During SleepD. The Causes of Dream 1. D 参见第二段第三句“They are not sure what causes sleep.”2. D 第二段后半部分作了说明：“The best conditions for sleep are good health and meals neither too big nor too small. No worries and a comfortable place are important，too.”3. C 参见第三段第三句“You would feel tir

12、ed if you didnt.”4. B 文章贯穿始终，第二段第一句已指出：“Sleep puzzles science.” 阅读理解18The aim（目的） of students who came to school is to study. But to study requires（需要） a right way，or you waste either the time or the money. The following are the ways of studying.The best time for reading is morning，because in the mo

13、rning，the air is fresh and the mind is clear. For that reason，we can get good result（结果）.In studying we must have patience（耐心）. If we have not known a text well，we must read it again. We should not read the next one till we have learned the first one.When we are studying，we must put our hearts into the book，or we can get nothing from the book while we are reading.We must always ask “whys”. If it is not well understood，write it down and ask our teachers or our parents，or friends. In any possible way，we must know it completely