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Unit 4 Astronomy the science of the stars
李仕才
一、阅读理解。
The Internet plays a big part in human life. We use it for work and entertainment. We can find new recipes on the Internet or advice on staying healthy. We can even use it to learn a new language. We use the Internet to connect with family and friends and stay in touch with issues we care about.
The list goes on and on.
As far as the Internet being a part of our lives—well, that train has left the station. That expression means there is no going back. If you prefer boating, you can say that ship has sailed.
So, there may be no going back to an Internet-free life. But can using the Internet too much be bad for our health?
It might be, say researchers.
Study results show that teens who spend at least 14 hours a week online were more likely to have high blood pressure.
High blood pressure makes your heart and blood vessels work too hard. Over time, this extra strain increases your risk of a heart attack or stroke.
High blood pressure can also cause heart and kidney disease. It is also closely linked to some forms of dementia, a brain disease. Dementia is marked by memory disorders, personality changes, and a reduced ability to reason.
Let’s introduce something about the study of it.
The Henry Ford Hospital in Detroit, Michigan did the study. It involved 335 young people, from 14 to 17 years old. One hundred thirty-four of the teens were described as “heavy Internet users”. Researchers found that out of these 134 teens, 26 had high blood pressure.
The researchers say the study is the first to connect heavy web use and high blood pressure. Other research has connected that heavy Internet use with health problems including anxiety, depression and obesity.
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The lead researcher of the study is Andrea Cassidy-Bushrow. In a statement she said, “Using the Internet is part of our daily life but it shouldn’t consume us. ”
For the purpose of the study, she explains, teens considered heavy Internet users were online on “average 25 hours a week. ”
Ms Cassidy-Bushrow adds that it is important for teens to take “regular breaks from their computers or smartphones” and to do some “kind of physical activity. ”
She also suggests that parents limit their children’s use of the Internet to two hours a day, five days a week.
【文章大意】互联网如此有用并且融入我们的生活, 但过度使用它, 会导致多种健康问题。 1. The first two paragraphs mean that ________.
A. the list of the function of the Internet is too long to be endless B. the Internet has too many uses to count
C. the number of the people in the world using the Internet is too many to count D. the list of the uses of the Internet is being lengthened day by day
【解析】选B。细节理解题。由第一句“The Internet plays a big part in human life. ”和第二段“The list goes on and on. ”可知, B项符合题意。
2. The reason of increasing people’s risk of a heart attack or stroke is that ________.
A. they use the Internet too much
B. they pay little attention to their health
C. high blood pressure makes their heart and blood vessels work too hard D. using the Internet too much makes their heart and blood vessels work too hard 【解析】选C。细节理解题。由第七段“High blood pressure makes your heart and blood vessels work too hard. Over time, this extra strain increases your risk of a heart attack or stroke. ”高血压使得人们的心脏和血管超负荷运行。长此以往, 这种超负荷运行会增加心脏病和中风发生的风险。” 可知C项正确。
3. Which of the following may using the Internet too much contribute to besides teenagers’ high blood pressure? A. Anxiety, depression and obesity.
B. Memory disorders, and personality changes. 精品K12教育教学资料
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C. Dementia, a brain disease. D. A heart attack or stroke.
【解析】选A。细节理解题。根据第十一段内容可知: 科研人员说研究结果表明过度使用互联网首先导致高血压。其他研究结果表明还可导致其他健康问题, 如: 忧虑、情绪低落和肥胖。故A项正确。
4. Ms Cassidy-Bushrow suggests that the proper time children spend using the Internet should be ________. A. 25 hours a week C. 5 hours a day
B. 10 hours a week D. 14 hours a week
【解析】选B。细节理解题。根据最后一段: “她还建议家长应该把孩子使用互联网的时间限制在每天两小时, 每周五天。” 故B项正确。
二、单句语法填空
1．(2017·北京高考)Every year, ________ makes the most beautiful kite will win a prize in the Kite Festival.
答案：whoever whoever “无论谁”，表泛指，在句中作主语，相当于anyone who。 2．My relationship with the actors is fundamental ________my work as a director. 答案：to be fundamental to ... “……是……的基础”。
3．I can say that it is the ________(violence) film that I have ever seen. 答案：most violent 由“that I have ever seen”可知，此处应用形容词最高级。 4．His last paintings are perhaps the most ________(puzzle), which even the artists can't make sense of.
答案：puzzling 此处形容词puzzling “令人困惑的”作表语，描述主语paintings的本质特征。
5．________exists a good way to solve the problem in geography. 答案：There There exists ... “存在……；有……”。
6．As second-hand smoking is ________(harm) and dangerous, people want a total ban against smoking in public.
答案：harmful 此处形容词harmful “有害的”作表语。
7．She bought a heavy curtain ________(block) out the light. 答案：to block 此处动词不定式短语to block out作目的状语。
8．Though injured seriously, he tried to cheer ________ , hoping to make his parents less worried. 精品K12教育教学资料
【配套K12】[学习]2019版高考英语一轮基础习选题 Unit 4 Astronomy the s
