Part OneVocabulary and StructureDirections: There are ten incomplete sentences in this part. For each sentence there are four choices marked A, B, C and D. Choose the one that best completes the sentence. Mark your answer on the ANSWER SHEET with a single line through the center.1. Making energy use completely harmless to the environment _ very difficult and usually economically expensive. A. is B. are C. have been D. shall be2. _ no gravity, there would be no air around the earth, hence no life. A. If there had been B. If there was C. Had there been D. Were there3. Some members of the committee suggested that the meeting A. being postponed B. to be postponed C. be postponed D. postponed4. Is there anything else _ you want to get ready for the party this evening? A. which B. who C. that D. what5. Since any answer may bring _ to his government, the spokesman tried to avoid the question. A. commitment B. embarrassment C. failure D. benefit6. It is possible for a person to _ negative attitudes and gain healthy confidence needed to realize his or her dreams.A. get rid of B. get away with C. get out of D. get along with7. By the end of this term, the girls _ the basic rules of dinner party conversation. A. will learn B. will have learned C. have learned D. are learning8. If you miss the cultural references _ a word, youre very likely to miss its meaning. A. below B. before C. beyond D. behind9. I cannot _ your plan, for I see no money return for the pursuit. A. approve of B. argue with C. turn down D. give up10. The thief was so _ by the bright lights and barking dogs that he left hastily. A. annoyed B. frightened C. puzzled D. disappointedPart TwoReading ComprehensionDirections: In this part there are three passages and one table, each followed by five questions or unfinished statements. For each of them, there are four choices marked A, B, C and D. Choose the best one and mark your answer on the ANSWER SHEET with a single line through the center.Questions 11-15 are based on the following passage: Firefighters are often asked to speak to school and community groups about the importance of fire safety, particularly fire prevention and detection. Because smoke detectors reduce the risk of dying in a fire by half, firefighters often provide audiences with information on how to install these protective devices in their homes.Specifically, they tell them these things: A smoke detector should be placed on each floor of a home. While sleeping, people are in particular danger of an emergent fire, and there must be a detector outside each sleeping area. A good site for a detector would be a hallway that runs between living spaces and bedrooms. Because of the dead-air space that might be missed by hot air bouncing around above a fire, smoke detectors should be installed either on the ceiling at least four inches from the nearest wall, or high on a wall at least four, but no further than twelve, inches from the ceiling. Detectors should not be mounted near windows, entrances, or other places where drafts (过堂风) might direct the smoke away from the unit. Nor should they be placed in kitchens and garages, where cooking and gas fumes are likely to cause false alarms.11. One responsibility of a firefighter is to _. A. install smoke detectors in residents homes B. check if smoke detectors are properly installed C. develop fire safety programs for schools D. speak to residents about how to prevent fires12. Compared with homes without smoke detectors, homes with them give their owners a 50% better chance of _. A. surviving a fire B.preventing a fire C. detecting a hidden fireD. not getting injured in a fire13. A smoke detector must always be placed _. A. on any level of a home B. outside all bedrooms in a home C. in all hallways of a home D. in kitchens where fires are most likely to start14. The passage implies that dead-air space is most likely to be found _. A. on a ceiling four inches away from a wall B. near an open window C. close to where a wall meets a ceiling D. in kitchens and garages15. What is the focus of this passage? A. How firefighters carry out their responsibilities. B. The proper installation of home smoke detectors. C. The detection of dead-air space on walls and ceilings.D. How smoke detectors prevent fires in homes.Questions 16-20 are based