Unit 4 Lesson 12 Healthy Bones 同步练习 1.doc

Unit 4 Lesson 12 Healthy Bones 同步练习一、单项选择。1.Amy was reading a book I came in.A. whenB. whileC. becauseD. though2.Ill go to visit my aunt in England the summer holidays start.A. whileB. sinceC. untilD. as soon as3.You must make sure your tea is not too hot you drink it.A. beforeB. afterC. sinceD. while4.Many students didnt realize the importance of study they left school.A. whenB. untilC. asD. after5.Tom failed in the math exam again he wanted to pass it very much.A. ifB. soC. thoughD. as二、汉译英。6. 虽然在下雨，但他们仍在工作。 7. 虽然他很老，但仍然努力地工作。 8. 这台相机太贵了(以至于)我买不起。 三、单词拼写(单句首字母填空)9. Can you give me some a on how to save water and electricity？10. Helen didnt go to bed until 11:30 last night. She feels s now.11. B is thicker than water.12. Dont w paper. You can use both sides of it.13. I can open up my students eyes to the o world and give them a good s in life.四、阅读与表达(问答式) Why do people cry？ Scientists say the body produces tears because they need them. One kind of tears is for the eye， the other is for the heart. They both work as cleaners. If something else like dust(灰尘) gets into your eye， tears also come into the eye to clean it out. If you are hurt by something， your strong feelings produce some poisonous chemicals(毒素) in your body， and at the same time， tears come out with them. If these poisonous chemicals are not cleaned out of your body as soon as possible， they will do harm to the heart sooner or later. In the United States men have heart problems more often than women do. Doctors say heart problems have something to do with the pressures(压力) of living and working now. Perhaps men suffer more from these illnesses because they do not cry enough. They need to cry more. In fact， you can find many ways of reducing the pressures to keep fit. Crying is a natural and physical one. 根据短文内容，完成下列小题。14. How many kinds of tears does the body usually produce？ 15. What do tears do when dust gets into your eye？ 16. Will the poisonous chemicals in the body do harm to the heart？ 17. Why do men suffer more from heart problems than women？ 18. What will you do to reduce the pressures of living and working to keep fit？ 答案一、1. A 2. D 3. A4. B 5. C二、6.Although it was raining， they are still working in the field7.Although he is very old， he still works very hard8.This camera is so expensive that I cant afford it三、9. advice10. sleepy11. Blood12. waste13. outside， suggestion四、14. Two.15. The