Unit 2 What is happiness to you 同步练习2（含答案）

Unit 2 What is happiness to you 同步练习 总分 100分 时间 45 分钟 成绩评定 _____ I . 根据首字母或中文提示补全单词：(每题2分, 共20分) 1. A He finished the report under the g_____ of the professor. 2. B Don’t bother me when I am _____ off my feet. 3. A We were all weak from h_____ not having had food for over fourteen hours. 4. B Drivers must not exceed (超过) a m_____ of 55 miles an hour. 5. A He made the story so v_____ that we all believed it. 6. B Children lose their _____ (天真) as they grow older. 7. B Those are the problems that _____ (青春期) boys between the ages of 13 and 18 have to face. 8. B If you press the switch, the light comes on _____ (立即). 9. A His _____ (动机) was so strong that we doubted he could fail. 10. B My family’s health and _____ (安全) are of the greatest importance to me. II. 用所给的短语填空： (每题2分, 共20分) focus ... on, assist ... with , look back on, take care of, take time, at that point, at work, in a rush, in life, ahead of, 1. B When the tap was opened, the water came out _____. 2. A _____, the professor got up and left the room. 3. A I like to _____ my high-school days, which were among the happiest in my life. 4. A Do you think everyone makes mistakes _____ 5. A Tom is a quick walker and soon got _____ the others. 6. B I think it will _____ to make changes in the law. 7. A He finds it hard to _____ his thoughts _____ one thing for longer than five minutes. 8. A When I was his age I was _____ day and night. 9. A He was very happy to _____ him _____ his mathematics. 10. A I will _____ these books and return them as soon as possible. III. 阅读理解：(每题5分, 共40分) A (2006年安徽高考题) To extinguish (熄灭) different kinds of fires, several types of fire extinguishers have been invented. They must be ready for immediate use when fire breaks out. Most portable (手提式的) kinds operate for less than a minute, so they are useful only on small fires. The law requires ships, trains, buses and planes to carry extinguishers. Since fuel, oxygen and heat must be present in order for fire to exist, one or more of these things must be removed or reduced to extinguish a fire. If the heat is reduced by cooling the material below a certain temperature, the fire goes out. The cooling method is the most common way to put out a fire. Water is the best cooling material because it is low in cost and easy to get. Another method of extinguishing fire is by cutting off the oxygen. This is usually done by covering the fire with sand, steam or some other things. A blanket may be used do cover a small fire. A third method is called separation, which includes removing the fuel, or material easy to burn, from a fire, so that it can find no fuel. The method that is used to put out a fire depends upon the type of fire. Fires have been grouped in three classes. Fires in wood, paper, cloth and the like are called Class A fires. These materials usually help keep the fire on. Such fires can be stopped most readily by cooling with water. ... ...