The danger of heart disease increases 20% for one hour a day spent watching televsion. A. for B.to C.in D.by 题目和参考答案——青夏教育精英家教网—

题目内容

The danger of heart disease increases　　 20% for one hour a day spent watching televsion.

A. for B.to C.in D.by

考查介词的用法及含义。此处increase by意为：增加了……

练习册系列答案

相关题目

While all my classmates seen to be crazy about a one-way ticket to Mars(火星), I’d rather say Mars is totally unsuitable for human existence. People won’t have enough food supplies there, and the terrible environment would make it impossible for them to live a long life. Besides, the journey won’t be safe. Can anybody explain to me just why people would go to Mars, never to return?

Steve Minear, UK

Here are the things you can think of: the desire to explore a foreign and unique environment, the excitement of being the first humans to open up a new world, the expectation of fame and glory…For scientists there is another reason. Their observations and research will probably lead to great scientific achievements.

Donal Trollop, Canada

There are already too many people on the Earth. I think that sometime before the end of the century, there will be a human colony(殖民地)on Mars. It will happen when people finally realize that tow-way trips to the red planet Mars are unnecessary. Most of the danger of space Flight is in the launches(发射) and landings. Cutting the trip home would therefore reduce the danger of accidents, save a lot of money, and open the way to building an everlasting human settlement on another world.

Enough supplies can be sent on ahead. And every two years more supplies and more people will needs, and Mars is far more pleasant than the other planets in the outer space.

Paul Davies. USA

The main purpose of Steve Minear’s writing is .

A. to report his classmates’ discussion B. to invite an answer to his question

C. to explain the natural state of Mars D. to show his agreement on going to Mars

Which of the following best states Donal Trollop’s idea?

A. There is a plan to send humans to Mars.

B. There are many reasons for going to Mars.

C. Scientists become famous by doing research on Mars.

D. It is possible to build an Earth-like environment on Mars.

Paul Davies points out that .

A. humans need only a one-way ticket to Mars.

B. two-way trips to Mars will be made safe soon

C. it is easy to reduce the danger and cost of flights to Mars

D. it is cheap to build an everlasting human settlement on Mars

What does Paul Davies think of human existence on Mars?

A. Humans will have to bring all they need from the Earth.

B. Humans will find Mars totally unsuitable for living.

C. Humans can produce everything they need.

D. Humans can live longer in the colony on Mars

I was six when I joined my father and two brothers at sunrise in the hayfields of Eufaula,Oklahoma.By the time I was eight I was helping Dad fix up low-income rent properties.He gave me a penny for every nail I pulled out of old boards.

I got my first real job,at JM’s restaurant in town,when I was 12.My main responsibilities were cleaning tables and washing dishes,but sometimes I helped cook.

Every day after school I would head to JM’s and work until ten.On Saturdays I worked from two until eleven.At that age it was unlucky going to work and watching my friends run off to swim or play.I didn’t necessarily like work,but I love what working allowed me to have.Because of my job I was always the one buying when my friends and I went to the local bar Tastee Freez.This made me proud.

Word that I was honest and hard-working got around town.A local clothing store offered credit to me although I was only in the seventh grade.I immediately charged a $68 sports coat and a $22 pair of trousers.I was making only 65 cents an hour,and I was already $90 in debt!So I learned early the danger of easy credit.I paid it off as soon as I could.

My first job taught me discipline,responsibility and brought me a level of personal satisfaction few of my friends had experienced.As by father,who worked three jobs,once told me,“If you understand sacrifice and commitment,there are not many things in life you can’t have.”How right he was!

When the author was a child,he was made to help his father work because_________.

A.the retaurant was short for hands

B.his family belonged to the low-income group

C.he wanted to earn some money

D.he was stronger than his two brothers

At the age of 12,the author got a job at a restaurant and often worked till late at night because_________.

A.he liked that work

B.he didn’t like playing

C.he was hard-working

D.he felt rewarded by doing that work

When the author was in the seventh grade,he was in debt because_________.

A.he did not work any more

B.he bought clothes on credit

C.he was charged too much for the sports coat

D.he made little money at that time

What does the author want to tell the reader by this text?

A.If you know sacrifice and responsibility,you can have many things in life.

B.Children from poor families usually have a very unhappy childhood.

C.Children could be made to work and earn some money by themselves.

D.You will learn discipline and responsibity by working early in life.

Risk of death is 3.5 to 5 times greater for obese (肥胖的) smokers than it is for people who have never smoked and are at a normal weight, according to a study published in the November, 2006 issue of the American Journal of Preventive Medicine.

The study, which began with a self-administered questionnaire taken between 1983 and 1989, asked more than 80,000 radiologic technologists aged 22 to 92 questions about age, height, weight and smoking behavior.

BMI (body mass index) was calculated, with a BMI of 30 to 34.9 being considered obese, and 35 and over being very obese. Smoking behavior was analyzed by looking at a person's tobacco consumption level, number of years smoked, and current smoking status. Researchers then followed participants through December of 2002, noting the number of deaths that occurred.

The study involved researchers from the National Cancer Institute, the University of Minnesota and the American Registry of Radiolegic Technologists.

Key Findings:

20 percent of obese adults in the United States smoke.

Obese smokers face a greater risk of death from cancer and circulatory disease.

Current smoking is a greater risk factor for death by cancer than obesity is, generally speaking.

The higher a person's pack-years (number of packs smoked per day times the number of years smoked) are, the greater the risk of death.www.zxxk.com

Men and women of all ages faced an elevated risk of death due to circulatory disease as BMI increased. And for those who were both obese and currently smoking, risk of circulatory disease increased 6 to 11 times under the age of 65, as compared to their never-smoking, normal weight counterparts.

While it's not surprising that obesity coupled with smoking is a recipe for trouble, it is important to highlight this growing health concern in America today.

Taking Charge of Your Health

Making healthy choices can be difficult when we're constantly exposed to products that are dangerous to our health, but it's not impossible. With education and some motivation, we all have the ability to make lasting changes for the better. If you're an overweight smoker worried about gaining weight due to quitting, take heart. It's never too late to change your course and even reduce damage to some extent.

1.60. What is the American Journal of Preventive Medicine?

A. An medical institute. B. A research center.

C. A medical magazine D. A TV station

2.Which of the following is true according to the text?

A. Obese smokers are less likely to suffer from cancer.

B. Obese smokers are more likely to suffer from cancer.

C. Obese smokers tend to gain fewer body mass index.

D. Obese smokers tend to get heavier than those who never smoke.

3.According to the author, it is ________ to get rid of smoking.

A. easy and possible B. difficult and impossible

C. easy ant worthwhile D. difficult but worthwhile

4.What is the purpose of the text?

A. To inform the readers of the findings about obese smoking.

B. To warn the readers of the danger of obese smoking.

C. To tell us what obese smoking is.

D. To call on the obese smokers to quit smoking.

The long, lonely voyage of the Japanese ghost ship is over.

A US Coast Guard cutter poured cannon fire into an abandoned Japanese ghost ship that had been drifting since last year’s tsunami (海啸), sinking the vessel into waters more than 305 meters deep in the Gulf of Alaska and removing the danger it posed to shipping and the coastline on Thursday.

The cutter’s guns tore holes in the 164-foot Ryou-Un Maru, and then it began to take on water and lean to one side. In about four hours, the ship disappeared into the sea, said Chief Petty Officer Kip Wadlow.

The ship had no lights or communications system, and its tank was able to carry more than 7,570 liters of diesel fuel. Officials, however, didn’t know exactly how much fuel was aboard.

“It’s less risky than it would be running into shore or running into other ships,” coast guard spokesman Paul Webb said.

The US National Oceanic and Atmospheric Administration and the Environmental Protection Agency studied the problem and decided it is safer to sink the ship than let the fuel evaporate and pollute the sea environment.

Ryou-Un Maru was probably among the first wave of the 1.5 million tons of garbage of refrigerators, washing machines, televisions, roofs and fishing nets heading toward North America since last March when a magnitude-9.0 earthquake struck Japan.

As the coast guard was ready to fire on the vessel, a Canadian fishing vessel, the 19-meter Bernice C, claimed the rights to save the ghost ship in international waters.

Plans to sink it were paused so the Canadian crew could have a chance to take the stricken ship. A Canadian official with knowledge of the situation told the Associated Press that the Bernice C was unable to drag it.

Then the Canadian boat left, and once it was about 10 kilometers from the Japanese vessel, the Coast Guard began to fire, first with 25 mm shells, then a few hours later with ammunition (弹药)twice that size.

State officials have been working to test the danger of garbage including materials affected by a damaged nuclear power plant, to see if Alaska residents, seafood or wild animals could be affected.

1.The plan to fire on the Japanese ghost ship was paused because ____________.

A．the ghost ship was beyond the reach of the Coast Guard’s guns

B．state officials worried the ghost ship might give out radiation

C．the shells were not powerful enough to sink the ghost ship

D．a Canadian fishing boat wanted to save the ghost ship

2.What’s the right order of the events related to the ship of Ryou-Un Maru?

a. Its long, lonely voyage came to an end.

b. The US Coast Guard sank it into the sea.

c. The ship began to float across the Pacific Ocean.

d. A big tsunami was caused by great earthquakes.

e. Bernice C claimed rights to save the ghost ship.

A．d, c, e, b, a B．a, b, d, c, e C．c, e, d, a, b D．b, a, d, c, e

3.Which of the following could be the best title for the passage?

A．Japanese ghost ship arriving at US

B．Tsunami garbage heading to US

C．Japanese ghost ship polluting the Pacific

D．Cannon fire sinking Japanese ghost ship

根据短文内容，从短文后的A-G选项中选出能填入空白处的最佳选项。选项中有两项为多余项。

Everyone tries instant noodles方便面. It is very easy to cook by putting them into the boiling water and add in those MSG(味精) packets. However, have you ever wondered whether this is the correct way of cooking it? ___1____ .In order to make the noodles join together nicely side by side and achieve beautiful instant noodles in front of us, some form of wax coating涂蜡 is needed. __2__. It is advisable to have a break of 2-3 days before we start to eat another packet of instant noodles as our bodies need about 3 days to clear that layer of wax coating away from our system. Do you know the danger of having too much wax coating stored in our stomach? ___3

Here are the key points to take note of while preparing instant noodles.

____4____.

Repeat Step 1 and try to stir the noodles again to wash away the wax coating on the noodles before cooking it in a new pot of water.

The importance is not eating too many instant noodles. It is very important that we should follow the key points while having our meal of instant noodles.

___5____..

A．Nothing is more important than health, so drink enough water.

B．However, the layer of wax coating on the noodles is quite harmful.

C．It is very easy to cook instant noodles, but we must take note of the harm of it.

D．When you first see the noodles, you will notice them nice.

E. Wash the instant noodles.

F. Wash and stir with warm water.

G. It will lead to cancer if it is stored in our body for long.

试题分类