精英家教网 > 高中英语 > 题目详情

If you think that running marathons will help you live a long and healthy life,new research may come as a shock.According to a recent scientific study,people who do a very strenuous workout are as likely to die as people who do no exercise at all.

Scientists in Denmark have been studying over 1,000 joggers(慢跑者) and non-joggers for 12 years.The death rates(率) from the sample group suggest that people who jog at a moderate(适合的) pace two or three times a week for less than two and a half hours in total are least likely to die.

The best speed to jog at was found to be about 5 miles per hour.The research suggests that people who jog more than three times a week or at higher speeds of over 7 mph die at the same rate as non-joggers.The scientists think that this is because strenuous exercise causes structural changes to the heart and arteries(动脉).Over time,this can cause serious injuries.

Peter Schnohr,a researcher in Copenhagen,said,“If your goal is to decrease(减少) risk of death and improve life expectancy,jogging a few times a week at a moderate pace is a good strategy(策略).Anything more is not just unnecessary,and it may be harmful.”

The implications(含义) of this are that moderate forms of exercise such as tai chi,yoga and brisk walking may be better for us than “iron man” events,triathlons(三项全能) and long-distance running and cycling.According to Jacob Louis Marott,another researcher in the study,“You don’t actually have to do that much to have a good impact(影响) on your health.And perhaps you shouldn’t actually do too much”.

1.The underlined word “strenuous” in Paragraph l is closest in meaning to“___________”.

A.hard B.regular

C.practical D.flexible(灵活的)

2.The author presents some figures in Paragraph 2 to ___________.

A.suggest giving up jogging

B.show risks of doing sports

C.provide supportive evidence(证据)

D.introduce the research process(过程)

3.According to the scientists,why is too much exercise harmful?

A.It may injure the heart and arteries.

B.It can make the body tired out.

C.It will bring much pressure.

D.It consumes too much energy.

4.What can be inferred from the text?

A.No exercise at all is the best choice.

B.More exercise means a healthier life.

C.Marathons runners are least likely to die.

D.Proper exercise contributes to good health.

练习册系列答案
相关习题

科目:高中英语 来源:2015-2016学年河北景县中学高一下学期升级考试英语试卷(解析版) 题型:阅读理解

Mosquitoes have an extraordinary ability to target humans far away and fly straight to their unprotected skin. Regrettably, mosquitoes can do more than cause an itchy(发痒的)wound. Some mosquitoes spread several serious diseases,including Dengue,yellow fever and malaria.

Over one million people worldwide die from these diseases each year. New research now shows how mosquitoes choose who to bite.

Mosquitoes need blood to survive. They are attracted to human skin and breath. They smell the carbon dioxide gas, which all mammals breathe out. This gas is the main way for mosquitoes to know that a warm-blooded creature is nearby.

But mosquitoes also use their eyes and sense of touch. Michael Dickinson is a professor at the California Institute of Technology. His research shows how these small insects, with even smaller brains,use three senses to find a blood meal.

Michael Dickinson’s team used plumes—a material that rises into the air of carbon dioxide gas into a wind tunnel. They then used cameras to record the mosquitoes. The insects followed the plume.

Then, the scientists placed dark objects on the lighter colored floor and walls of the tunnel. Mr. Dickinson said, at first, the mosquitoes showed no interest in the objects at all. “What was quite striking and quite surprising is that the mosquitoes fly back and forth for hours. These are hungry females and they completely ignore the objects on the floor and wall of the tunnel. But the moment they get a hit of CO2, they change their behavior quite obviously and now would become attracted to these little visual blobs (斑点).”

This suggested to the researchers that a mosquito’s sense of smell is more important in the search for food. Once mosquitoes catch a smell of a human or animal,they also follow visual signals.

1.What do mosquitoes mainly use to find their targets?

A. Sense of smell B. Sense of touch

C. Sense of sight D. Smart brains

2.The first response of the mosquitoes to the objects in the experiment is _______.

A. to fly to the dark ones

B. to catch and stick to them

C. to take no notice of them

D. to attach themselves to them

3.How can we avoid being attacked by mosquitoes according to the text?

A. Don’t let them see us.

B. Use dark objects to stop them.

C. Make them fly back and forth for hours.

D. Attract them to objects full of carbon dioxide gas.

4.What can be the best title for the text?

A. How Do Mosquitoes Survive?

B. Why Do Mosquitoes Need Blood?

C. How Do Mosquitoes Choose to Bite You?

D. Why Do Mosquitoes Attack the Human Being?

查看答案和解析>>

科目:高中英语 来源:2015-2016学年四川遂宁射洪县射洪中学高一6月月考英语试卷(解析版) 题型:完形填空

阅读下面短文,从短文后各题所给的四个选项(A, B, C和D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。

People don’t know how you feel until you tell them. _________years ago, my best friend Randy died of cancer at the age of 41. He was always _________ and he lived life to the full. There was one thing _________ in his life. In 41 years, his father never said to him that he was _________ of him, loved him and believed in him. These words were the only thing Randy ever _________from his father but in 41 years Randy never got any of them.

For three years while Randy was _________ the cancer, every time I saw him, I_________ him a bear hug and told him how much I _________ him. Randy has been gone for twenty years. I miss him and his father also misses him, _________ I don’t have to live with regret that I never told Randy what he _________ to me. His father does. I’m convinced(说服) that if his father had one_________, he would choose to be given a chance to tell his son how much he loved him. _________ he’ll never get that chance. It is too _________ for him. He will live the rest of his life with that _________.

It may still not be too late for you. Is there anyone in your_________ who would love to or needs to have some special words of love, encouragement or _________from you? Is there anyone who deserves and wants to_________the words and doesn’t want to “just intuitively (凭直觉地) know” how you feel? Life is too _________, leaving many words not spoken and many deeds not done. _________,people don’t know how you feel until you tell them how you feel. I’m sure there must be someone you can call, visit or write to. Don’t wait until it is too late. _________it now.

1.A. TenB. TwentyC. ThirtyD. Forty

2.A. sadB. silentC. kindD. positive

3.A. missingB. catchingC. breakingD. shaking

4.A. kindB. sureC. proudD. scared

5.A. wantedB. heardC. receivedD. suffered

6.A. curingB. seeingC. fightingD. checking

7.A. madeB. gaveC. createdD. took

8.A. respectedB. understoodC. thankedD. loved

9.A. orB. andC. butD. otherwise

10.A. meantB. showedC. provedD. brought

11.A. planB. wishC. ideaD. guide

12.A. BrieflyB. ProbablyC. SurprisinglyD.Unfortunately

13.A. lateB. eagerC. muchD. hard

14.A. goalB. regretC. dreamD. thought

15.A. classB. homeC. lifeD. school

16.A. suggestionB. anxietyC. angerD. support

17.A. explainB. tellC. hearD. say

18.A. colorfulB. shortC. differentD. valuable

19.A. AgainB. ThusC. HoweverD. Besides

20.A. FindB. GetC. MakeD. Do

查看答案和解析>>

科目:高中英语 来源:2015-2016学年江西于都三中高一下期第四次月考英语试卷(解析版) 题型:语法填空

阅读下面材料,在空白处填入适当的内容(不多余三个单词)或括号内单词的正确形式填空。

It was raining lightly when I 1._______ (arrive) in Yangshuo just before dawn. But I didn’t care. A few hours 2._______, I’d been at home in Hong Kong, with 3._____ (it) choking(窒息的) fog. Here, the air was clean and fresh, even with the rain.

I’d skipped nearby Guilin, a dream place for tourists seeking the limestone mountain tops and dark waters of the Li River 4.______ are pictured by artists in so many Chinese 5.______(painting). Instead, I’d go straight to Yangshuo. For those who fly to Guilin, it’s only an hour away 6._______ car and offers all the scenery of the better-known city.

Yangshuo 7.________ (be) really beautiful. A study of travelers 8.______ (conduct) by the website Trip Advisor considers Yangshuo as one of the top 10 destinations in the world. And the town is fast becoming a popular weekend destination for people in Asia. Abercrombie & Kent, a travel company in Hong Kong, says it 9._______(regular) arranges quick holidays here for people 10._________ (live) in Shanghai and Hong Kong.

查看答案和解析>>

科目:高中英语 来源:2015-2016学年辽宁大连第二十高级中学高二6月月考英语试卷(解析版) 题型:书面表达

书面表达

Read the instructions(指导、说明) carefully and then finish the writing. Think of two cities you know well, and you can’t help thinking of your hometown---Dalian and Xiamen in Fujian Province. Please write a short passage about some of the following features: (at least three features should be included), the beginning of the passage has been given. The total number of it should be within 110.

* population *climate *industry *location *tourism *transport

查看答案和解析>>

科目:高中英语 来源:2015-2016学年河北省高一下学期升级考试英语试卷(解析版) 题型:短文改错

短文改错

该文中共有十处错误,每句中最多有两处,错误涉及一个单词的增加、删除或修改。增加:在缺词处加一个漏字符号(∧), 并在此符号下面写出该加的词。删除:把多余的词用斜线( \)划掉。修改:在错的词下划一横线, 并在该词下面写出修改后的词。注意:1、每处错误及其修改均仅限一词;2、只允许修改十处, 多者(从第11处起) 不计分。

Good morning, everyone. It’s great honor for me to speak here. My name is Li Xiang, born in a harmonious family. My father and mother are all high school teachers. Influenced by them,I read widely during my early age, but I’ve developed a great interest in arts and sports. I’m easy-going, getting along well with my classmates. It is this personality which helps me win over the friendship of all my classmates, and also help me overcome many difficulties both in academic and personal life. Being admitted in your university has always been a beautiful dream for me. I dream constantly that I, along with mine classmates, will study happy with the help of the respectable professors. I dream that I will swim freely in the sea,enjoy the waves of knowledge. I hope all my dream will come true in the near future. Thank you.

查看答案和解析>>

科目:高中英语 来源:2015-2016学年河北省高一下学期升级考试英语试卷(解析版) 题型:阅读理解

It’s hard to find Alice Munro in the media. Even after she won the 2013 Nobel Prize in Literature, the Canadian writer just appeared for a quick interview and then dropped out of sight. On Dec 29, she still didn't seek the spotlight(聚光灯)when she was named one of the five Women of the Year by the Financial Times.

In Munro's eyes, ordinary lives always hide larger dramas. So she records what we casually think of as the everyday actions of normal people. She often focuses on life in her hometown, a small village in Ontario which she is most familiar with. She writes about the ordinary things in the village-fox forming, trees filled in the Ontario wilderness, poor country alcohol and long last illnesses. Above all, she talks about girls and women who have seemingly ordinary lives but struggle against daily misfortune.

She has a special talent for uncovering the extraordinary in the ordinary. These are ordinary people, ordinary stories, but she has the magic. Her precise language, depth of detail and the logic of her storytelling have made her stories inviting.

Runaway, one of Munro’s representative works, is a good example of her writing style. One of the stories centers on the life of an ordinary woman Carla, who lives in a small Canadian town with her husband Clark. The story slowly forms a picture of Carla, trapped in a bad marriage, her unhappiness building into desperation until she decided to flee. The story of Carla is a story of the power and betrayals of love. It is about lost children and lots of chances that we can all find in life, There is pain beneath the surface, like a needle in the heart.

Since she published her first collection of short stories in 1968, Munro has won many awards, with the Nobel Prize being her biggest honor. On Oct 10, 2013, the Nobel Prize committee named Munro the “master of the contemporary short story”.

1.We learn from Paragraph 1 that Alice Munro_____

A.didn't get on well with the media

B.remained modest though very successful

C.didn’t value the title of Women of the Year

D. was surprised at winning the Nobel Prize

2.What makes Alice Munro’s stories fascinating according to the text?

A.Her writing techniques

B.The complicated plots

C.The humorous language

D.Her rich imagination

3.In her representative work Runaway, Carla_____

A.leads a happy life with Clark

B.is a faithful wife to her husband

C.loses all hopes for a better life

D.tries to run away from her husband

4.What is the text mainly about?

A.Alice Munro and her hometown

B.The awards Alice Munro won

C.Alice Munro and her writing style

D.Alice Munro’s literary life

查看答案和解析>>

科目:高中英语 来源:2016届高三复习跟踪检测英语试卷(35)(解析版) 题型:七选五

阅读七选五

Do you struggle with business writing?Are teams and individuals asking for help with their business writing skills? 1. Since 1990, we have been helping employees and managers write better.

Everything written in business reflects the image of the company and the writer. 2. This means organizing ideas well, checking that the language is accurate and that the presentation is professional. Writing successfully is always the result of careful planning.

Before you start writing, you need to decide why you are writing and what you hope to achieve. This will help you decide what to include in your writing and whether to write an e?mail, a letter or perhaps a report.

Meanwhile, think about readers. 3. The structure of what you write can guide readers and help them understand the content of your writing so that they can respond.

While you are writing, you need to think about how you organize your ideas. Writing a report may involve presenting data and linking complex ideas; writing a memo (备忘录) may involve describing a situation and dealing with ways of improving it. You need to understand how to construct paragraphs. 4._

After you have finished writing comes the very important process of revising, checking and correcting.

5.You will find plenty of useful information about effective business writing. In our courses, participants get tools, tips, techniques, job aids, and follow?up resources to help them write better.

A.Contact us.

B.Assess your skills here.

C.It will help you choose appropriate structures.

D.A range of words can be used to link your ideas.

E.Spelling mistakes should be checked and corrected.

F.So it is very important that writing is done to the highest standards.

G.Here comes the good news.

查看答案和解析>>

科目:高中英语 来源:2015-2016学年浙江湖州中学高一下学期期中考试英语试卷(解析版) 题型:其他题

用所给单词或短语翻译句子

1.很显然,平衡的饮食和有规律的锻炼有利于健康。(obvious)

2.节日让我们享受生活,以我们的习俗为荣, 并暂时忘却繁重的学业。(let)

3.用了打折和新标语,店主期待着把顾客赢回来。(with)

4.那位靠写小说谋生的作家已经动身去上海了。(who)

5.正是这部电影让Henry想起了在农村抚养他长大的祖父母。(强调句,bring up)

查看答案和解析>>

同步练习册答案