Unit 3 Language in useI单项填空。1. _ they playing games over there?Yes, they_.A. Do, doB. Are, areC. Do, areD. Are, do2. Tony is talking_ his cell phone.A. onB. aboutC. inD. for3. All the students are getting ready_ their homework.A. doB. to doC. doingD. does4. The children cant wait to open their presents_ Christmas Day. A. inB. onC. forD. of5. They go shopping for presents and get_ food ready.A. lot ofB. a lotC. a lots ofD. a lot of6. The teacher wants_.A. three pieces of chalk B. three piece of chalkC. three pieces of chalks D. three piece of chalks7. How about_ English?Its great.A. learnB. learnsC. learningD. to learn8. “Hes working.” Means(意思是) “Hes_.”A. at workB. workC. worksD. to work9. Three _ a football match tomorrow.A. will haveB. will beC. will hasD. going to be10. _ she/she is kind, _ we all like her.A. Because, soB. So, becauseC. /, becauseD. /, soII完形填空。Class Four 11 not going to have any lessons next week. They are going to help the farmers 12 their work on the farm. They are going to 13 apples. Many students think working on the farm is much better than 14 classes. They 15 to 16 earlier next Monday morning. They are going to 17 at the school gate at about 7:30. They are going 18 . They are going to 19 their old clothes. They are going to 20 hard. 1. A. areB. isC. willD. can2. A. onB. withC. toD. of3. A. pickingB. picksC. pickD. to pick4. A. haveB. havingC. to haveD. has5. A. are goB. goC. are goingD. going6. A. workB. get upC. put onD. get on7. A. leaveB. reachC. meetD. stay8. A. by a busB. by busC. a busD. on bus9. A. put upB. put offC. putD. put on10. A. studyB. walkC. workD. listenIII阅读理解。 What is the sky? Where is it? How high is it? What lies above it? These questions are difficult to answer, arent they?Is the sky blue? No, the sky has no colour. Is the sky full of air(空气)? Yes, we know that there is air all over the world. When planes fly, they need air to lift(托起) their wins. Planes cannot fly very high, because when they go higher, the air gets thinner(更薄). When we go high enough from the earth, we find there is no air.Maybe we can answer some of the questions now. what is the sky? Nothing. Where is it? Its all round the world. The sky is space. In this space there is nothing but the sun, the moon and all the stars.根据短文内容，选择正确答案。1. What is the sky?A. It is the clouds. B. It is space.C. It is the whole world. D. It is air.2. The sky_.A. is blue B. has no colour C. is colourfulD. is of different colours at different times of the day3. Planes cannot fly very high because_.A. there will be less and less(更多) air to lift their wingsB. the flying machine is not good enoughC. the pilot(飞行员) will be afraid if he flies too high D. there will not be enough air for the pilot to breathe4. In the sky there is_.A. nothing B. air everywhereC. the earth D. the sun, the moon and all the stars5. The Chinese for “wing” is_.A. 机身B. 机翼C. 机头D. 机毛3