1、阅读理解。阅读下列短文, 从给的四个选项 (A、B、C和D) 中, 选出最佳选项。Today, ultrasonic(超声的) waves are being put to work in laboratories and factories. If an ultrasound generator is placed in a liquid, the waves move the liquid back and forth hundreds of thousands of times each second. This causes materials to mix quickly or to
2、 dissolve(使分解，使溶解) in liquids. Paint manufacturers(制造商) use ultrasound to do a better job of blending colors. The companies that make film for your camera find that mixing chemicals by the use of sound waves will produce a more sensitive film. The new lightweight(轻量的) type of washing machine uses ul
3、trasonic waves to get clothes clean. Its special ultrasound generator is put into a pail of soapy water containing the soiled clothes. The sound waves drive the soapy water back and forth through the cloth so fast that everything is soon clean. There is also a new kind of dishwasher that works in mu
4、ch the same way. Ultrasonic waves can shake a liquid so fast that tiny holes form all through it. The liquid is actually torn apart by this action. Almost as soon as these holes are made, they fall together again. The result is a powerful pounding action. In the dairy industry this is used for the d
5、ouble purpose of making homogenized(使均匀，使匀质) milk and sterilizing(使无菌) it at the same time. If you look at some raw milk with a microscope, you find that it is made up of little drops of butter fat floating around in a watery liquid. In order to make milk easier to digest, these fat droplets(微粒) may
6、 be broken up by forcing the milk through very small openings. The result is called homogenized milk. When the ultrasonic method is used, the sound waves not only break up the droplets but also kill the germs in the milk by pounding them to pieces. (from )1. Why does a paint manufacturer use ultraso
7、und to do a better job of blending colors?A. Because it is cheap to use ultrasound to blend colors.B. Because the waves move the liquid so quickly that it can make materials mix quickly or dissolve in liquids.C. Because they can mix chemicals by the use of sound waves.D. Because the waves can clean
8、the paint.2. What properties does ultrasound wave have?A. Homogenizes and sterilizes the milk. B. Mix materials and break droplets.C. Kill germs and sterilize milk. D. Move liquids quickly.3. What exists in the raw milk?A. Little drops of butter fat. B. Small holes.C. Fat droplets and germs. D. Chem
9、icals.4. Where is ultrasound wave not used? A. In the paint manufacture. B. In the shop mixing bread flour.C. In the film-making company. D. In the dairy industry.1. B 事实细节题。根据其上句 This causes materials to mix quickly or to dissolve(使分解，使溶解) in liquids 可知，答案选 B。2. D 事实细节题。根据文章最后一段的第 1 句 Ultrasonic wa
10、ves can shake a liquid so fast that tiny holes form all through it可知，答案选 D。3. C 事实细节题。根据文章最后一段的内容，特别是最后一句 When the ultrasonic method is used, the sound waves not only break up the droplets but also kill the germs in the milk by pounding them to pieces 可知，答案选 C4. B 推理判断题。根据文章第 1 段最后提到的 Paint manufact
11、urers(制造商)以及The companies that make film 两句排除选项 A、C，根据第 3 段第 5 句的 In the dairy industry this is used for 排除选项 D，从而得出答案是 B。阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。Those who have suffered from insomnia know the sinking feeling of watching the clock tick. Now a new study in the Archives of Internal Medicine
12、 suggests that lying in bed awake may actually contribute to the problem of sleeplessness. The study of 79 adults (average age 72) with insomnia aimed to determine whether brief behavioral interventions for insomnia would help. Traditional behavioral therapy（疗法）requires at least half a dozen hour-lo
13、ng sessions with a therapist a costly commitment many patients either cant make or dont have access to. Other options include sleep-aiding medications or supplements. In the current study, the 39 participants in the behavioral therapy group received a 45- to 60-minute instructing session, plus a 30-
14、minute follow-up session and two 20-minute phone calls. Doctors offered the following behavioral interventions for improving sleep: reduce time in bed; get up at the same time every day, regardless of sleep duration; dont go to bed unless sleepy; and dont stay in bed unless asleep. The other 40 part
15、icipants in the study were given printed educational materials about insomnia, which included the same instructions given to the intervention group, but without the individualized sessions with a therapist. Two weeks later, the latter group also got a 10-minute follow-up phone call. At the end of fo
16、ur weeks, the behavioral treatment group was significantly more likely to show improvements in sleep than the printed-materials group. By that time, 55% of those who received behavioral treatment no longer met the criteria for insomnia, compared with 13% of the group that got educational brochures.
17、The good news comes at the same time as a report on the health effects of insomnia from the U.K.s Mental Health Foundation. The report, Sleep Matters, suggests a link between insomnia and poor relationships, low energy levels and an inability to concentrate. Poor sleep has already been linked to dep
18、ression, immune deficiency and heart disease. 66. What is the meaning of the underlined word “ insomnia”?A. sleeplessness B. depression C. heart disease D. immune deficiency67. What is the disadvantage of traditional behavioral therapy? A. It cant help. B. It costs a lot of money. C. It requires ses
19、sions with a therapist. D. It includes sleep-aiding medications.68. How to improve sleep according to the doctor? A. Lying in bed awake. B. Get up early every day. C. Dont go to bed late at night. D. Dont stay in bed if you are not asleep.69. We can learn from the text that insomnia may cause the fo
20、llowing results except_. A. depression B. concentration C. immune deficiency D. heart disease70. What can we infer from the study?A. The intervention group was not given the printed materials.B. The latter group of the study was not given follow-up phone calls.C. The behavioral treatment group was l
21、ess likely to show improvements.D. The instructing session that the intervention group received is most effective.【参考答案】6670ABDBD阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。Britains seed bank, the only one in the world aiming to collect all of the planets wild plant species, has reached its goal of banking 1
22、0 percent by 2010The Millennium Seed Bank Project, run by Kew Gardensone of the oldest botanical gardenswill officially deposit the 24,200th species on Thursday, a pink, wild banana from ChinaMore than 50 countries are now on board with Kews giant task but vast places of the globe, including India a
23、nd Brazil, still need to join in and donate seeds, director Paul Smith said The seed bank is one of the largest and most diverse in the world with more than 15 billion seedsIts goal is to help protect the planets bio-diversity during a time of climate changeThe wild banana seed is under threat of ex
24、tinction（灭绝） in southwest China from agricultural developmentIt is a vital food source for Asian elephants and important for growing bananas for human consumptionStored at minus-20 degrees centigrade, so they can last for thousands of years, the seeds await the day that scientists hope never comeswh
25、en the species no longer exist in the wildIt is a race against time, Smith said, because in the last decade alone, 20 plants held in the bank have already been wiped out in the wildHe estimates that between a third and a quarter will become extinct this centuryIt is urgent and it is happening nowAn
26、area, the size of England, is cleared of primary vegetation（植被）every year Smith saidBecause most of the worlds food and medicines come from nature, protecting wild plant species is quite important, scientists sayThere are already many other seed banks safeguarding food crops, which only account for
27、0.6 percent of plant diversityFor Kews next goalto collect a quarter of wild varieties by 2020the botanists need 10 million pounds a year, or a further 100 million pounds on top of the 40 million they have already been granted71Whats the final purpose of the Britains seed bank? ATo collect enough mo
28、ney for the project BTo safeguard food crops CTo protect wild plants from extinction DTo help scientists study wild plants72The wild banana seed in China is in danger because of _ Athe expanding of farming work Bthe climate change in this area Cthe large number of Asian elephants Dhumans large consu
29、mption73We can learn from the passage that _ Athe seeds in the bank can be used now and then all over the world BIndia and Brazil havent joined in the Seed Bank Project at present Cthere is only one seed bank in the world at present Dthe wild plants in places like India and China will never die out7
30、4What does the underlined word “it” in paragraph 7 refer to? AThe extinction of plant species BKew Gardens next goal CBritains seed bank DThe Millennium Seed Bank Project75Which of the following information isnt mentioned in the passage? AThe global partnership of collecting wild plant species BThe
31、temperature condition of the conservative wild plant species CThe governments financial support for the seed bank project DScientists concern on the extinct wild plant species参考答案7175 CABDC完形填空。阅读下面短文，掌握其大意，然后从各题所给的四个选项A、B、C和D中，选出最佳答案。One day, a poor boy who was trying to pay his way through school
32、by selling goods from door to door found that he only had one dime left. He was hungry so he decided to 1 for a meal at the next house.However, he lost his nerve 2 a lovely young woman opened the door. Instead of a meal he asked for a drink of water. She thought he looked 3 so she brought him a larg
33、e glass of milk. He drank it 4 , and then asked, “How much do I owe you?”“You dont owe me anything,” she 5 . “Mother has taught me never to accept pay for a _6 .” He said, “Then I thank you from the bottom of my heart.” As Howard Kelly left that house, he not only felt stronger 7 , but it also incre
34、ased his faith in God and human race. He was about to give up and quit before this point.Years later the young woman became critically ill. The local doctors were baffled. They finally sent her to the big city, where specialists can be called 8 to study her rare disease. Dr. Howard Kelly, now 9 , wa
35、s called in for the consultation. When he heard the name of the town she came from, a strange light 10 his eyes. Immediately, he 11 and went down through the hospital hall into her room. 12 in his doctors gown he went in to see her. He 13 her at once. He went back to the consultation room and 14 to
36、do his best to save her life. From that day on, he gave 15_attention to her case. After a long 16 the battle was won. Dr. Kelly 17 the business office to pass the final bill to him for approval. He looked at it and then wrote something on the side. The bill was sent to her room. She was afraid to op
37、en it because she was 18 that it would take the rest of her life to pay it off. Finally she looked, and the note on the side of the bill caught her 19 . She read these words“Paid in full with a glass of milk.”(Signed) Dr. Howard KellyTears of joy flooded her eyes as she 20 silently. “Thank you, God.
38、 Your love has spread through human hearts and hands.”( ) 1AcallBmakeCbegDprepare( ) 2AwhileBwhenCthoughDunless( ) 3AthirstyBlazyCtiredDhungry( ) 4AslowlyBunexpectedlyCsteadilyDhurriedly( ) 5AannouncedBshookCrepliedDdoubted( ) 6ArewardBkindnessChandDvalue( ) 7AphysicallyBmentallyCnormallyDproperly(
39、) 8AupBforConDin( ) 9ArichBfamousCobservantDvivid( ) 10AfixedBconsultedCfilledDconcentrated( ) 11AroseBraisedCgotDleft( ) 12AWornBHavingCputtingDDressed( ) 13ArecognizedBknewCsparedDregained( ) 14AdesiredBdeclaredCdeterminedDdeclined( ) 15AspecialBordinaryCnormalDno( ) 16AdecisionBpreparationCstrugg
40、leDdebate( ) 17AorderedBrequestedCconfusedDcompressed( ) 18AnegativeBuncertainCpositiveDobvious( ) 19ApresentationBpreferenceCattentionDarrangement( ) 20ApraisedBpretendedCpressedDprayed1C beg for“向要”，也可以用ask for，其他答案不合语境。2B when=and suddenly; and at that moment。3D通过文章内容可以知道the poor boy当时是hungry，上文已
41、经有提示。4A5C replied=answered.6B the young woman在需要的时候帮助了the poor boy，这当然是一个善意的行为。7A上文已经交代了作者是饿了，所以是身体上的stronger.8D见44空后的call in。9B由下文的requested the business office to pass the final bill to him for approval可以判断。10C由后面的eyes可以推断。此时，Kelly 马上想起孩提时的那一件印像很深的事。11A rose(rise的过去式)在此意思是“起身”C应该说“get from”，D后加宾语才对。12D be dressed in为固定搭配，wear后直接接宾语。13A recognized意思是“认出”，其他答案不能表达这个意思。14C determined to do sth.是“下决心做事”。其他答案不合逻辑。15A special attention是“特殊的照顾”，表达Kelly对那个woman的感激之情。16C由上文的rare disease可以判断。17B其它答案不合情理。18C the woman根据自己的病情推出费用一定昂贵。19C catch ones attention“引起某人的注意”。20D由“Thank you, God”可以知道答案。