湖北省2014高考英语 专项训练 阅读理解37.doc
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
5 0人已下载
| 下载 | 加入VIP,免费下载 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 湖北省2014高考英语 专项训练 阅读理解37 湖北省 2014 高考 英语 专项 训练 阅读 理解 37
- 资源描述:
-
1、2014高考英语冲刺阅读理解专项 50-37AAmerican researchers say drinking tea may help strengthen the bodys defense system against infection(感染). Doctors at Brigham and Womens Hospital in Boston, Massachusetts, did the study. The team studied a chemical found in black, green, oolong and pekoe tea. This chemical is a
2、n amino acid(氨基酸)called L-theanine. The scientists say it may increase the strength of gamma delta T cells. Thats the letter T, not the drink. Gamma delta T cells are part of the bodys defenses.First, the researchers mixed some of these cells with antigens(抗原)found in the amino acid. Antigens help t
3、he body react to infection. Then the scientists added some bacteria(细菌). Within twenty-four hours, the cells produced a lot of interferon, a substance that fights infection. Cells not mixed with the antigens did not produce interferon.In the second part of the study, eleven people drank five to six
4、cups of black tea every day. Ten other people drank the same amount of instant coffee. That is dried coffee mixed with hot water.Two weeks later, and again two weeks after that, the researchers tested the blood of all twenty-one people. They also looked at what happened when they added bacteria to t
5、he blood cells. They found that the tea drinkers produced five times more interferon after they started drinking tea. The coffee drinkers did not produce interferon.Doctor Jack Bukowski led the study. He says the antigens added to the gamma delta T cells were responsible for the increased reaction t
6、o the bacteria. He says the study also showed that the cells were able to remember the bacteria and fight them again the next time.Earlier research already has found that tea can help prevent heart disease and cancer. Doctor Bukowski says the new study must be repeated with more people. If the findi
7、ngs prove to be true, he says, then tea drinking might also help protect against bacterial infections. He says the amino acid L-theanine could be removed from tea and used as a drug to strengthen the bodys defenses.1. We may know from the text that _ can be found in different kinds of tea.A. Gamma d
8、elta T cellsB. L-theanineC. interferonD. bacteria 答案解析:答案为B。本题为推理题。由第一段 “The team studied a chemical found in black, green, oolong and pekoe tea. This chemical is an amino acid called L-theanine.” 可知,在black, green, oolong and pekoe tea里面发现了叫做L-theanine的化学成分。故答案为B。2. Tea may help strengthen the bodys
9、 defense system because it helps _.A. the body to produce more interferon B. the body to produce more gamma delta T cellsC. to add some bacteria to the blood cells D. to mix antigens with some of the cells in the body答案解析:答案为A。本题为推理题。由第二段 “Within twenty-four hours, the cells produced a lot of interf
10、eron, a substance that fights infection.” 可知,细胞产生interferon,它可以抵抗感染,故可推断,茶能增强身体的抵抗能力因为它能帮助身体产生更多的interferon。故答案为A。3. According to Dr Bukowski, _.A. the findings of the study have already proved to be trueB. he has taken some amino acid L-theanine from tea and made a drug with itC. further study is n
11、eeded to prove the findings trueD. he is not sure whether tea can help prevent heart disease and cancer 答案解析:答案为C。本题为推理题。由最后一段首句 “Earlier research already has found that tea can help prevent heart disease and cancer.” 可知,D选项错误。由该段的后文 “Doctor Bukowski says the new study must be repeated with more peo
展开阅读全文
课堂库(九科星学科网)所有资源均是用户自行上传分享,仅供网友学习交流,未经上传用户书面授权,请勿作他用。


2019届人教A版数学必修二同步课后篇巩固探究:2-1-1 平面 WORD版含解析.docx
