精读Book1 U4-6 部分答案打印节选.doc

Book1 U4 Careless is used when people do not pay enough attention to what they are doing, so they make mistakes, or cause harm or damage, while carefree refers to a person or a period of time that does not involve any problems, worries, or responsibilities. Both words can refer to suffering from a disease or a health problem. In this sense, sick can often be used as attributive in front of a noun. When ill is used as attributive, it often refers to something harmful or unpleasant. Sick can also mean “going to vomit”, so it can be confusing to say “I’m sick.” Sick is sometimes used to talk about a dislike from too much of something. Disease refers to any kind of bad health or is an illness that affects people, animals or plants. It does not have any implications as to whether the sickness is acute or chronic, mild or harsh, or long or short in duration. Plague specifically refers to a very infectious disease that spreads quickly over a wide area and kills large numbers of people. Keep, among its many different uses, can mean “to cause something or somebody to continue to do something”, or “to have without the need of returning.” Maintain means “ to continue to have something and do not let it stop or grow weaker”, or “ to keep something in good condition by regularly checking it and repairing it when necessary.” Let’s go for a picnic tomorrow unless the weather forecast is unfavourable. (favour) A successful business needs good organization. (organize) The ring was not at all valuable; in fact, it was almost worthless. (worth) Your job will be to see that no imperfect product leaves this part of the factory. (perfect) The floor of the attic needs strengthening if we’re going to make it into a bedroom. (strong) He is ashamed of what he has done. (shame) She expressed her gratitude to me by inviting me to dinner. (grateful) In youth, he showed great promise, but finally he turned out mediocre. (young) Translation exercises: Translate the following sentences into Chine