8. After hospitals buy the expensive equipment that is necessary for modern heart surgery， they must try to recover the money they have spent.

　　本句中的equipment 是不可数名词，不能在后面加s.equipment后面的谓语动词也用单数形式。

　　1）The modern equipment enables them to double their production.（现代化的设备使他们能把产量翻倍。）

　　2）They decided¹ to buy some new equipment.（他们决定购买新设备。）

　　3）Advanced equipment is necessary for this work.（干这个活需要先进的设备。）

　　还请注意，recover 在本句中的意思是get back（回收）。

　　1）We must try to recover lost time.（我们必须设法弥补失去的时间。）

　　2）They recovered increased costs through higher prices.（他们通过提高价格来补偿上涨的成本。）

　　9. In the past， people tended to think that it was sufficient for good health to have a good doctor who could be relied on to know exactly what to do when they became ill.

　　That引导的是一个宾语从句。在这个宾语从句中，it 做形式主语，真正的主语是to have a good doctor.  Who引导的是一个定语从句，修饰doctor.what to do 做know的宾语。这句话的意思是，“过去，人们往往认为有个可以信赖的好医生就足以使他们有好身体，因为这个医生知道在他们生病时究竟该做什么。”

　　本课主要词组

　　1. at an alarming speed

　　2. die of

　　3. spend money on

　　4. emphasis on

　　5. associate with

　　6. take place

　　7. enable sb. to do sth.

　　8. increase in

　　9. benefit from

　　10. point out

　　11. cause…to…

　　12. be encouraged to do sth.

　　13. not at all

　　14. pay attention to

　　15. as a result

　　16. rely on

　　17. take responsibility for

　　18. succeed in

　　19. take up

　　20. be aware of

　　21. instead of

　　22. decrease in

　　Text B   Dieting Your Way to Health

　　短语表达

　　1. consider doing sth.

　　He is considering changing his present job.

　　Have you ever considered moving to the suburb？

　　2. go on a diet

　　She decided to go on a diet to keep her weight down.

　　The doctor suggested that he should go on a diet to lose some weight.

　　3. sometime

　　I remember meeting him sometime two years ago.

　　I believe we will meet again sometime in the future.

　　4. regardless of

　　He went to see the old lady every week regardless of wind or rain.

　　These pineapples are sold for the same price regardless of their size.

　　5. have…in common

　　The twin brothers had no interests in common.

　　6. do harm to

　　Excessive drinking and smoking will do harm to your health.

　　His lies will surely do harm to his integrity.

　　7. slow down

　　It is dangerous for you to drive so fast. Please slow down.

　　I have to persuade my father to slow down a bit. He has been too busy recently.

　　8. convert to

　　The food we eat is converted into energy.

　　After Einstein finished using the tube of shaving cream， he reverted² to using plain water.

　　9. lose interest in

　　If you don't encourage him he will soon lose interest in this project.

　　He said he had long lost interest in playing video games.

　　10. go on

　　He was not aware of what was going on around him.

　　It is so noisy outside. What is going on？

　　11. resistance to

　　The doctor did not expect he would have resistance to this antibiotic³.

　　This child's resistance to illness is too low.

　　12. be essential

　　English is essential for his diplomatic work.

　　Regular exercise is essential for his recovery.

　　13. have difficulty doing sth.

　　He had difficulty making himself understood.

　　The young man had difficulty in reading these technical drawings.

　　14. suffer from

　　Some people suffer from heart illness at an early age.

　　He is suffering from breath difficulty.

　　15. take the place of

　　Who is going to take the place of Miss Li when she is away？

　　Artificial sweeteners are recommended to take the place of sugar and other natural sweeteners.

　　16. lead to

　　His explanation led to great confusion.

　　17. result in

　　The workers' strike resulted in the management yielding to their demand.

　　His lack of business sense resulted in his bankruptcy⁴.

　　18. provide sb. with sth.

　　They will be provided with all the daily necessities.

　　Nature provides the wild animals with the necessary safeguards.

　　19. substitute for

　　There is no substitute for good food and exercise.

　　He substituted for the worker who was ill.

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