Unit 1 1. Lively behavior is normal (活泼的举止是正常的) for a four-year-old child. 2. Fast cars appeal to John （速度快的车对约翰有吸引力）, but he cant afford one. 3. Dave required a lot of time to study the diverse arguments (各种各样的论据). 4. I asked my boss for clarification (我要求我的上司进行澄清)，and she explained the project to me again. 5. Photographic film is sensitive to light (对光很敏感). 6. Mutual encouragement (互相鼓励) can be a great help, especially in the early days. 7. Jimmy cried when people made fun of him (拿他开玩笑). 8. John wont give up. He persists in his opinion (坚持他的观点). 9. Ted always wants to be the focus of attention (成为注意的焦点). 10. Is it cheaper if we buy our tickets in advance (我们提前买票)? Unit 2 1. However, the main drawback with this type of search engine (这种搜索引擎的主要缺陷) is its tendency to include too much information. 2. Shes very generous with her time (她从不吝惜自己的时间)-always ready to help other people. 3. You may have known someone else for 20 years and yet they will never be more than a casual acquaintance (他们永远只是泛泛之交). 4. He doubted that the car was hers (他怀疑这车不是她的)because everyone knew she had no money. 5. Its impossible to forget such horrific events- they will remain in the memory forever (它们会永远留在记忆中). 6. In a word too often filled with uncertainties (在这样一个常常充满各种不确定性的世界上),it is nice to have a safety net, something you can rely on. 7. The earthquake happened a year ahead of prediction by the research group (比该研究小组的预报提前了一年), but earthquakes are usually difficult to predict. 8. I dont mind being awakened once or twice in the middle of the night by my roommate so long as she doesnt make a habit of it (只要她不养成习惯). Unit 3 1. Their study shows that sports skills carry over into personal life (可以运用到个人生活中).2. I find myself call on the boys more often (更多地叫男生回答问题), because they tend to be the ones having trouble staying on task. 3. I used to have trouble getting all the laundry put away (把要洗的衣服放好) before it was time to do the next batch. 4. After her time in hospital, Jennys parents are afraid she has fallen behind academically (在学业上落后了). 5. People are wondering whos going to take over (谁会接班) when the old president dies. Unit 4 1. I think it is up to him to finish the work (这工作都得由他来完成)no matter how long it takes. 2. We decided to sacrifice a trip for a new car (我们决定为买新车而放弃旅行)，though it was really hard for us to make the decision.3. He tried not to involve his wife in the management of the company (让他的妻子参与公司的管理工作),because in most cases the advantages outweighed the disadvantages. 4. It is of vital importance to future generations (对未来几代人都是极其重要的) that open spaces and parklands are protected and maintained to a high standard to keep the city increasingly attractive. 5. We have reached the agreement at the meeting that the key to this problem is better planning (解决这个问题的关键是更好的策划). 6. I propose pursuing this question further (继续深入讨论这个问题) by considering critically the four theories well-known in this area.7. The house was a completely original design (这个房子是完全新颖的设计)-neither the interior nor the exterior was copied of any existing buildings of the kind. 8. Through all his life he has made efforts to promote the mutual understanding between the two countries (增进两国间的相互了解). Unit 5 1. One of the reasons they became good friends (他们成为好朋友的其中一个理由) was that they enjoyed the same sports and music. 2. We will learn by our own experience what is best, and not by following the footsteps of others (不是靠重复别人的足迹). 3. He will play in two tournaments in Japan, which means he will miss the world cup (这意味着他将错过世界杯)in his home country. 4. She wondered whether to say she missed him very much or to continue to keep silent(是否表白自己很想他还是继续保持沉默).She had to think about their relationship again. 5. Her mind was soothed by memories of her dad and of the days when she was a little girl living with dad in the country (她还是个小女孩时同父亲一起住在乡下的日子). 6. No matter how insignificant the findings were at the time (无论调查结果在当时是多少没有意义), it is important to record all of them properly. 7. Constantly being criticized by parents (总是受到父母的批评)can seriously hurt the children and wont reinforce what the parents try to teach. 8. The danger of going too far (做过头的危险)was always present because he was talking too much. But he couldnt help it.Unit 6 1.He was finally offered the job on the strength of his good memory （凭借他的记忆力好）and the many exams he had passed. 2.She favors a bit of adventure as well as a certain degree of self-government when her childrens education is concerned（当涉及到她孩子的教育时）. 3.Most people who are sick with AIDS want to stay at home, rather than spend time unnecessarily in hospital（而不愿意毫无必要地呆在医院里）. 4.What if I choose to give small amounts of money regularly over a period of time（在一段时间内定期给少量的钱） instead of donating a la