C
The longer the food is kept, the more likely it is to attract insects. Even foods stored in containers often attract bugs. To solve this problem, scientists have been working with different odors in an attempt to find one strong enough to keep insects from going near food. One possibility would be to use plants with strong smells, like garlic or pine, to keep insects away. Unfortunately, however, using these smells might keep some people away too !
A more promising repellent is citronella oil, which comes from a type of lemongrass. An experiment was done using this oil with a certain insect, the red flour beetle. Scientists sprayed cardboard boxes with citronella oil and noticed that the beetles did not enter those boxes. They were much more interested in boxes that were not sprayed. One problem with using citronella oil as a repellent, however, is that it is quite ephemeral ---it simply does not last very long. After a few months it loses its smell, and bugs no longer find it unpleasant. Scientists hope to improve citronella oil so that its scent remains strong for a longer time. It will also be necessary to make sure that the oil is not harmful to people. as scientists are not sure whether it is safe to use around food. 54. What is the passage mainly about?
A. Oil used in cooking B. Ways of protecting food from insects C. The behavior of a kind of beetle D. Smells produced by different grasses 55.What dose the author imply about the odors of garlic and pine? A. They last for a long time B. They are not very strong
C. They can be unpleasant to people D. They attract certain species of beetles 56.What are repellents?
A.A food source for beetles B. Machines used to get oil from plants C. Substances used to keep insects away D. Chemicals used to speed up plant growth 57. The underlined word \A. weightless B. short-lived C. overpriced D. not distinguishable
D
Qi Haoran, a Junior Grade One student at a High School Attached to Harbin Institute of Technology, was quite busy over the past winter holiday-and not just with homework. Qi, together with 10 other classmates, made a volunteer group to call on people to join the Clean Your Plate Campaign（光盘行动）.
These student went to many restaurants and told people the importance of saving food. “Excuse me，do you know that 950 million people around the world still haven’t got enough to eat? Please don't waste food.” They would say this kind of thing hundreds of times every day.
The Clean Your Plate Campaign began on the Internet in January. It calls on people to reduce food waste. China in recent years has experienced serious problems with wasted food. CCTV reported in January that the food Chinese people waste every year is enough to feed 200 million people for a year. .
Chinese people are well-known for being hospitable (好客的) and generous.Many even feel that they lose face if their guests have eaten all the food.
Luckily, the campaign has got the support of many. In a restaurant in Xinjiang,the owner gives the guests who have eaten up all that they ordered a sticker (贴花) .People can enjoy a free meal when they have 10 stickers. More than 750 restaurants in Beijing have begun to offer smaller dishes and encourage their guests to take leftovers(剩饭剩菜) home.
To reduce food waste is a big task, and it needs time. It's important that everyone does their bit, just like Qi. Did you finish your meals today?
58. These students went to the restaurants in the winter holidays in order to . A. enjoy eating with friends B. tell people not to waste food. C. talk with people about their study . D. collect and clean the plates
59. According to the CCTV report in January, the food we waste every year can . A. get rid of very serious problems B. stop people from going to the restaurants C. feed 200, 000, 000 people D. make us become hospitable and generous 60. What is the author's attitude toward the campaign?
A. partially against B. supportive C. nonchalant D conservative 61. You can probably read this passage . A in a science book B. in a newspaper C. in a tourist guide D. in an advertisement
E
Radiation (辐射) from the Sun continuously breaks two-atom oxygen molecules(分子) into single atoms (原子 ) . Some of these link up with ordinary oxygen (氧) molecules and form ozone. Some rejoin other free singles and revert to stable molecules. This Sun-energy process, if left undisturbed(不受干扰), maintains a fairly constant supply of ozone (臭氧) above the Earth's surface. The ozone layer begins about eight miles up and is disturbed thinly to about thirty miles up. This lofty umbrella of ozone shields the Earth from much of the Sun's deadly ultraviolet rays(紫外线). Without the ozone cover, life of Earth would be literally sunburned to death.
Some scientists believe that relatively small amount of synthetic chemicals, such as spray-can fluorocarbon or jet exhaust, reach the upper limits of the atmosphere and break down the three-atom ozone molecules. It is also believed that just one atom of the spray-can or jet pollutant can affect vast numbers of ozone molecules. Weather research satellites have observed the ozone shield in great detail, but their data have neither put to rest the “doomsday theories” nor incited a global campaign to stop destroying the Earth's protective covering. 62. According to the passage, ozone is a . A. kind of radiation B. deadly ultraviolet ray C. combination of oxygen atoms D. synthetic chemical 63. The destruction of the ozone layer would most likely result in a decrease in . A.1ife on Earth B. air pollution C. spray-can gases D. severe cases of sunburn 64. Which of the following statements is NOT true according to the passage? A. The level of ozone in the atmosphere is relatively constant if nothing disturbs. B. It is possible that even a small amount of a certain chemical can break down ozone. C. Weather research satellites are quite useful to stop the destruction of the ozone layer. D. An ozone molecule contains three atoms. 65. What is the author's purpose to write this article?
A. to persuade people B. to introduce a situation C. to sell goods D. to entertain people
第Ⅱ卷
四、短文改错（共10小题，每小题1.5分，满分15分）
此题要求改正短文中的错误。请在答题卡相应题目横线上写出错误并改正。 例：原文：
Once when a short- sighted man is walking 61.___________
on a farm
答题卡：61.is改为was
注意：每行最多只有一个错误，原行没有错的不要改。
A BRT bus catches fire in the southeastern city of Xiamen 66. ___________ on June 7th, killed at least 47 people and injuring 34 others, 67. ___________ the news agency Xinhua reported.
The vehicle was on a elevated bus lane and more than a 68. ___________ quarter-mile a bus stop when the flames started about 6:30 p. m. 69. ___________ It wasn't clear how started the fire. 70. ___________ Witness said they heard explosions 10 minutes afier the fire started. 71. ___________ An injured passenger told Xinhua that she smelled gasoline 72. ___________ while on the bus but then saw a fellow passenger 73. ___________ break a window in an attempt to get out 74. ___________ The incident is on investigation, Xinhua reported. 75. ___________
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