【正文】 w about Jae Kwon？A. He is teaching chemistry at MU.B. He developed a chemical battery.C. He was good at puter engineering.D. He is working on a nuclear energy source.48. Which of the following is true according to paragraph 3 and 4？A. The writer introduces methods of providing power density.B. The writer intends to describe a nuclearpower system.C. The writer introduces nuclear batteries which/that can be safely used.D. The writer is likely to show chemical batteries are widely applied.49. Liquid semiconductor is used to .A. control the lattice structureB. show the power of nuclear batteriesC. decrease the size of nuclear batteriesD. reduce the damage to lattice structure50. The passage is most probably from a .A. science news report B. book reviewC. science fiction novel D. newspaper advertisementPart III Cloze (15%)Direction: There are 15 blanks in the following passage. For each blank, there are four choices. Choose the one best answer and mark the corresponding letter on the Answer Sheet.Bill Fuller, a mailman, whistled cheerfully as he 51 up the hill towards Mrs. Carter’shouse. His work for the day was almost 52 , and his bag, usually quite heavy when he started out on his rounds, was 53 now except for the letter that he had to deliver to Mrs. Carter. She lived quite a few blocks away, so when Bill had mails for her, he usually finished his day’s work much 54 . He was happy that Mrs. Carter often 55 him coffee and a piece of her special cake.When Bill got to Mrs. Carter’s house, he was 56 that she did not work in the yard. She usually spent her afternoon there when the weather was 57 . Bill went around to the back of the house, 58 that she might be in the kitchen. The door was locked and the curtains were drawn. Puzzled, he returned to the front of the house and knocked loudly on the front door. There was no 59 . Bill thought that it was very strange because he knew that Mrs. Carter 60 left the house. Just then he noticed that her bottle of milk, which is always delivered early in the morning, was still on the porch. This 61 him. If Mrs. Carter had not taken her milk, maybe she was 62 . Bill walked around the house 63 he found an open window. It was a 64 window, but he got through successfully.He went into the hall. There he was almost stumbled (絆倒) over Mrs. Carter, who51. A. walkedB. droveC. wanderedD. rode52. A. forgottenB. startedC. finishedD. neglected53. A. heavyB. fullC. emptyD. handy54. A. laterB. earlierC. quickerD. slower55. A. lentB. soldC. offeredD. borrowed56. A. gladB. surprisedC. madD. angry57. A. windyB. fineC. badD. rainy58. A. thinkingB. seeingC. findingD. noticing59. A. doubtB. answerC. chanceD. way60. A. rarelyB. hardlyC. oftenD. always61. A. angeredB. worriedC. encouragedD. bothered62. A. sadB. busyC. absentD. sick63. A. becauseB. afterC. asD. until64. A. smallB. largeC. darkD. clean65. A. standingB. cryingC. tremblingD. lyingwas 65 unconsciously at the foot of the stairs. Realizing that he needed help, he rushed out of the house, stopped a passing car and told the driver to go to the nearest telephone and call an ambulance.Part IV Writing(15 points)Direction: Write an invitation in at least 100 words according to the following requirements.假設(shè)你是李明，你們班將要舉辦一場畢業(yè)晚會，晚會節(jié)目豐富多彩，包括唱歌、跳舞、 游戲等。時間：5 月 28 日 19:30；地點(diǎn)：教學(xué)樓 502。屆時班主任、任課老師和全體同學(xué)都 來參加。擬邀請外教 Robert 參加，請你寫一封邀請信，邀請他出席晚會，歡迎他表演節(jié)目。