《2022年考博英语-西南财经大学考试题库及全真模拟冲刺卷（含答案带详解）套卷24》由会员分享，可在线阅读，更多相关《2022年考博英语-西南财经大学考试题库及全真模拟冲刺卷（含答案带详解）套卷24（27页珍藏版）》请在金锄头文库上搜索。
1、2022年考博英语-西南财经大学考试题库及全真模拟冲刺卷（含答案带详解）1. 单选题More than one-third of the Chinese in the United States live in California （ ） in San Francisco.问题1选项A.previouslyB.predominantlyC.practicallyD.permanently【答案】B【解析】考查副词词义辨析。previously “以前，预先”；predominantly “主要地”；practically “实际地”；permanently “永久地，长期不变地”。句意：超过
2、三分之一的住在美国的中国人主要住在旧金山。选项B符合题意。2. 单选题Millions of Americans take large amounts of vitamin C pills every day because they believe the vitamin will help them stay healthy. However, a new study says vitamin C may help produce substances that can damage DNA. Scientists at the University of Pennsylvania exp
3、erimented with vitamin C in test tubes. They studied the effects of vitamin C on a substance produced in the body from fat. That substance is called hydro-peroxide（过氧化氢物）, which can be changed in a cell into substances that can damage DNA. The scientists found that vitamin C easily changed the hydro
4、-peroxide into the gene-damaging poisons. Such damage is the first step toward developing cancer.However, the scientists say the study does not mean that vitamin C causes cancer. They say it is well-known that vitamin C is important for human health, but people can get enough vitamin C in the foods
5、they eat. Earlier studies have shown that eating a lot of fruits, vegetables and grains can reduce the chance of developing both heart disease and cancer.Other researchers agree that the latest study is important in understanding the chemistry of vitamin C. But they say the study did not involve peo
6、ple. The vitamin C was tested in the laboratory only. They think the results might be different in living cells.Mark Levine is a vitamin C expert who questions whether a similar study in people would produce the same results. He also says people should get their vitamin C in food instead of taking h
7、uge amounts in pills to stay healthy, and research does not support taking a lot of vitamin C.The United States government says people should get about eighty milligrams of vitamin C each day in the foods they eat. Studies have shown that the body cannot use more than two hundred milligrams of vitam
8、in C each day. Medical researchers say that taking vitamin C pills cannot replace the value of eating healthy foods.1.What does this passage mainly discuss?2.Which one is Not true about the effect of VC according to the passage?3.What does the author imply when he mentions “living cells” in Paragrap
9、h 3?4.Which of the following is not true about the scientists research?5.Taking a lot of VC （ ）.问题1选项A.Taking a large amount of VC will do good to health.B.Taking too much VC pills every day is not good for health.C.People should take as much VC as possible.D.It is not necessary at all to take VC pi
10、lls.问题2选项A.It is important for human healthB.It may help produce substances that can damage DNAC.It causes cancerD.VC in foods can reduce the chance of developing heart disease and cancer问题3选项A.The research has involved living creatures.B.The results from the lab test might not always be reliable.C.
11、If it is tested in living body the results will be the same.D.The chemistry of VC is living.问题4选项A.The scientists experimented with VC in test tubes.B.The research didnt involve people.C.VC was tested in the lab only.D.Mark Levine did the experiment involving people.问题5选项A.is supported by VC expertB
12、.is encouraged by the U.S. governmentC.is agreed by medical researchersD.is disapproved by many scientists【答案】第1题:B第2题:D第3题:B第4题:D第5题:D【解析】第1题:主旨大意题。根据第一段的内容可知，美国人每天服用大量的维生素C药片，一项新的研究表明维生素C会产生破坏DNA的物质。由此可知，不能大量的摄入维生素C，所以选项A和C错误；再根据第二段第二句“ it is well-known that vitamin C is important for human health
13、.”众所周知，维生素C对人体健康很重要，所以不摄入维生素C也是不行的，选项D错误；只有选项B正确。所以本题选B。第2题:细节事实题。根据第二段第一句“the scientists say the study does not mean that vitamin C causes cancer.”科学家说，这项研究并不意味着维生素C会导致癌症。所以选项C不属于维生素C的效果。根据上一题可知选项A和B均正确；根据第二段最后一句“eating a lot of fruits, vegetables and grains can reduce the chance of developing both
14、 heart disease and cancer.”可知选项D也表述正确。第3题:判断推理题。根据关键词“living cells”定位到第三段最后一句，结合上下文的句意：“但是他们（研究人员）说这项研究并没有涉及人。维生素A只是在实验室里进行测试，如果在活细胞中实验的话结果可能会不同。”由此可推断，作者是想暗示实验的结果并不总是可靠的。所以选项B正确。选项A和C均不符合原文；选项D在文中没有提及。第4题:细节事实题。根据第一段第三句“Scientists at the University of Pennsylvania experimented with vitamin C in tes
15、t tubes.”可知选项A正确；根据第三段最后两句“The vitamin C was tested in the laboratory only. They think the results might be different in living cells.”可知选项B和C均正确；根据第四段第一句“Mark Levine is a vitamin C expert who questions whether a similar study in people would produce the same results.”Mark Levine是质疑在人体上进行类似的研究是否会产生相同的结果，而不是做了涉及人体的实验，所以只有选项D不正确。第5题:细节事实题。根据倒数第二段最后一句“research does not support taking a lot of vitamin C.”研究不支持人们服用大量维生素C。选项中“support，encourage，agree”都表示肯定，同意的意思，只有选项D中的“disapprove”属于不赞成，不同意，所以选项D为正确答案。3. 单选题AIDS activists permanently changed and shortened Americas （
