巩固练：介词和介词短语1. I will go on a vacation once all the work is _.A. at the end B. by the end C. in the end D. at an end2. Youd sound a lot more polite if you make a request _ a question.A. in search of B. in the form of C. in defence of D. in the direction of3. The girl gave him some peanuts _ some sweets.A. in charge of B. in praise ofC. in exchange for D. in need of4. Learning to play basketball calls for perseverance, strength, time and skill. _, its not a simple thing.A. As a result B. In conclusion C. In general D. After all5. The chairman remained silent _ the whole debateA. from B. while C. with D. throughout6. If you keep on, youll succeed _. Wish you success in the exam.A. in time B. at one time C. for the same time D. sometimes7. Did you plan to meet here?No, .A. by accident B. by mistake C. by the way D. by reason8. You should book your flight about two or three weeks _ so that you can enjoy a lower price.A. in particular B. in advance C. in return D. in fact9. According to a recent research, some of the small islands around the country may disappear _ the effects of climate change.A. except for B. along with C. instead of D. due to10. In1964, Yuan Longping discovered a natural hybrid rice plant _.Since then, he has spent all his life increasing the production of rice.A. at ease B. by chance C. in turn D. on purpose一、阅读理解。Mummy, I don t know what to play with. Steve interrupts his mother, who is talking to a friend, for the fourth time. Youve got a room full of toys! his mother says, impatiently. In fact it is the jumble of toys which is to blame for four-year-old Steves lack of interest in his dolls, cars and stuffed (packed) animals. Each morning he tips out three washing baskets of toys all over his floor, listlessly pulls out something and shortly after is standing at his mothers desk or following her into the kitchen saying: Mummy, I am bored.A family therapist ( 心理医生) explains why children lose interest when they have a whole toy shop at home: According to their brain development, little children are not in a position to judge the quality of a variety of things at once. There is always just one favorite toy for the moment. All the rest is left lying about. What can parents do to stop their children from being oversupplied with toys? Under no conditions simply make something disappear without the childs knowledge. If he/she takes no more notice of a toy, a parent can ask if it can be stored or given away. Be warned though the child will always say he/she wants it then! A talk with s and friends may also help. Lyn is the mother of four-year-old Jessie, and we like her way. A small set of shelves in her childs room holds the toys and books that are the current (at present) favorites. When it seems to her that her daughter is tired of these toys, they put them away in a box together and select some other toys from a cupboard in another room. The box of old toys goes into the cupboard. When her child says she is bored, they also get something from her cupboard - it may be something she has had for some time but because she hasnt seen it for a while it is almost like a new toy.Some favorite toys stay out all the time, and there is collection of dolls which sits in the corner, but in this way Lyn has found that she has fewer toys to put away at the end of the day and her daughter always has something fresh to play with.1. Steve interrupted his mother several times because _.A. he felt uninterested in his toysB. he disliked his mothers guestC. he didnt have enough toys to play withD. he hoped his mother would play with him2. According to the therapist, children often complain that they have nothing to play with because _.A. they cant play alone for a long timeB. they are too young to play with so many toysC. they are too lazy to pick out their favoritesD. they lack the ability to value too many things at a time3. Which of the following can be used in place of jumble?A. Simple choice. B. Mixture in disorder.C. Ordinary appearance. D. Same shape.4. Which is the advice given to parents in the text?A. Buy fewer toys for their children.B. Form good habits for their children.C. Spare some time to play with their children.D. Put some toys away without telling their children.二、书面表达。假定你是李华，来自美国的文化交流团将来你所在的社区参观，你负责接待工作。请你用英语写一份欢迎辞，向他们介绍你们的社区生活。注意：1. 词数100左右；2. 可适当增加细节，以使行文连贯。参考词汇：社区 communityDear guests，_