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1、Unit 3 Travel journal李仕才一、阅读理解。A new study has found the amount of antibiotics given to farm animals is expected to increase by twothirds over the next 15 years. Researchers are linking the growing dependence on the drugs to rising demand for meat, milk and eggs. The researchers warn the drugs
2、could quicken the development of antibioticsresistant (耐抗生素的)infections. Such infections are already a major public health concern in the United States. Experts say when people stop living in poverty, the first thing they want to do is eat better,rather than earn more money. For most people, th
3、at means their diet should contain more meat. Increasing prosperity in Asia has meant people there are eating nearly four times as much meat, milk and dairy products as they did 50 years ago. To meet that demand, farms have put many animals into smaller spaces. As the animals are crowded together, o
4、ften the easiest way to deal with some of the problems of crowding is to give them antibiotics. Its clear that antibiotics help animals stay healthy in a crowded environment and grow faster. But bacteria can develop resistance to the drugs gradually, and the antibiotics-resistant bacteria can spread
5、 to people. Doctors find that antibiotics that once worked against the infections no longer do. The bacteria have learned ways to fight the medicine. Doctors say the heavy use of antibiotics in animals is one of several reasons for the growth of antibiotic resistance worldwide. In the United States,
6、 at least two million people get drug-resistant infections each year. At least 23,000 die from an infection. Ramanan Laxminarayan heads the Center for Disease Dynamics, Economics and Policy. He says the problem is expected to get worse. He believes the use of antibiotics in animals will soon increas
7、e sharply. He says that will not be good for human health. He and other researchers wrote a report on the study, which was published in the Proceedings of theNational Academy of Sciences. They used data from the United Nations that tell how and where livestock(牲畜) are raised today. They then predict
8、ed how such production would change by 2030. Europe has banned the use of antibiotics to increase animal growth. And she adds the United States is hoping to persuade farmers to stop using antibiotics for that purpose.1.What is the passage mainly about?A.How to keep farm animals healthy.B.The abuse o
9、f antibiotics in human beings.C.A new way of raising farm animals.D.The disadvantages of using antibiotics.2.From he passage, we can infer that using antibiotics too often in farm animals _.A.will lead to animals being less activeB.causes animals to get infected more easilyC.makes antibiotic-resista
10、nt bacteria spread to peopleD.has a negative effect on the growth of animals3.What accounts for the increasing amount of antibiotics given to farm animals?A.The increasing need for meat.B.The need for eating diversely.C.The less effective antibiotics.D.The limited farm technology.4.How will the use
11、of antibiotics in animals according to Ramanan Laxminarayan?A.It will soon stop rising.B.It will soon increase sharply.C.It will soon rise steadily.D.It will soon increase slowly.参考答案： 1.D; 2.C; 3.A; 4.B解析： 1.纵观全文便知,文章主要介绍了人们使用抗生素来饲养家畜带来的缺点。如第一段:The researchers warn the drugs could quicken the devel
12、opment of antibioticsresistant (耐抗生素的)infections. Such infections are already a major public health concern in the United States和第五段等可得答案。2.推理判断题。根据第三段最后一句:But bacteria can develop resistance to the drugs gradually , and the antibioticsresistant bacteria can spread to people可得答案。3.事实判断题。根据第一段:Resear
13、chers are linking the growing dependence on the drugs to rising demand for meat, milk and eggs和第二段:Experts say when people stop living in poverty, the first thing they want to do is eat better, rather than earn more money. For most people, that means their diet should contain more meat.二、单句语法填空1This
14、 made Hannah very sad, and even more determined _ (do) something.答案：to dobe determined to do sth. “下定决心做某事”。2The World Health _ (organize) says half of them will die if they are not treated.答案：Organizationorganization “组织”，the World Health Organization “世界卫生组织”。3But that is not _ many people have in
15、 mind when thinking of driverless cars.答案：whathave sth. in mind “心里记着某事”，设空处是引导表语从句的连接词，在从句中作宾语，故填what。4Not having persuaded Helen _ (change) her mind, her parents had no choice but to allow her to go to China to travel alone.答案：to changepersuade sb. to do sth. “劝说某人做某事”。5The governments attitude _
16、the development of the flying car is favorable.答案：to/toward(s)attitude to/toward(s) . “对的态度”。6I graduated from university twenty years ago and _ (teach) in a middle school ever since.答案：have taughtever since “自从以来”，与现在完成时连用。7She got me back to the UK even earlier than originally _ (schedule)答案：schedul
