Starting the day on an egg could keep your blood pressure（血壓） under control, research suggests．Scientists have shown that eggs produce proteins with a function similar to that of powerful blood pressure-lowering drugs．

The research, from the University of Alberta in Canada, showed that when eggs come in contact with stomach enzymes（酶） they produce a protein that acts in the same way as Ace inhibitors, but more work is needed to show the effects outside a lab and in the human body．

Earlier this month, British researchers declared that, contrary to popular beliefs, it is healthy to go to work on an egg．They concluded that the type of cholesterol （膽固醇） found in eggs has little effect on increasing heart disease risks．

Researcher Professor Bruce Griffin, from the University of Surrey, said: “The wrong beliefs linking egg eating to high blood cholesterol and heart disease must be corrected ．The amount of fat in our diet has an effect on blood cholesterol that is several times greater than the relatively small amounts of cholesterol found in eggs．The UK public do not need to be limiting the number of eggs they eat．They can be encouraged to include them in a healthy diet as they are one of nature’s most nutritious foods．”

The British Heart Foundation dropped its three-egg-a-week limit in 2005．However, almost half of Britons believe the limit still applies．

1．From the text we know that Ace inhibitors are         ．

A．a kind of medicine                             B．a kind of protein  

C．a kind of illness                                  D．a kind of food

2．According to what Professor Brcue said, eggs        ．

A．are the most nutritious food．

B．have no effect on blood cholesterol

C．can be included in a healthy diet  

D．are forbidden to be eaten in the UK

3．We can infer from the text that           ．

A．drugs to lower blood pressure will be replaced by eating eggs

B．stomach enzymes mixed with eggs can cure heart diseases

C．most Britons agree the three-egg-a-week limit should be dropped

D．about 50% of Britons think eating an egg a day is bad for their health

4．The text is meant         ．

A．to introduce scientific findings about eggs

B．to introduce a medicine made from eggs

C．to tell people how to lower their blood pressure

D．to advise people to eat as many eggs as possible

練習冊系列答案
相關習題

科目：高中英語 來源：2010年湖北省高二上學期期中考試英語卷 題型：閱讀理解

At the end of eight grade, our class went to Washington, D.C. For a group of 14-year-olds, this was a big deal!

The first day was so tiring; we could hardly remember where we were and what we were seeing. The next morning, we were off to see monuments (紀念碑)，starting with Washington, Lincoln and Jefferson. We walked along the paths through trees. Then the Wall came into view—the Vietnam Veterans Memorial.

As I moved slowly closer to the Wall, I heard a bagpipe（風笛）in the distance, which seemed to show respect to the lives lost in the jungles of Vietnam .

We continued walking and felt surprised at the number of names carved in the black stone. I was determined to find a soldier with my last name, but my hunt was stopped when a man caught my eyes. He was kneeling(跪著) at the Wall, a single rose at his feet. His head was bowed and he was rubbing his fingers over one name. I thought how sad he was, and then moved on .

After a few minutes I found one with my last name, but my eyes returned to the kneeling man. He was still rubbing his fingers over the same name. He never knew I was watching him, lost in deep sorrow. It was time for me to leave the kneeling man and the Wall. On the way home, I couldn’t help thinking of the kneeling man and his sad face. I wasn’t sure of the effects of war before, but at that moment I realized how much that man suffered from losing his loved one. Maybe he was the only one of so many families who experienced the same .

I never knew the full effects of war until I saw that man. I only know about war from history classes. The kneeling man taught me more about war and the effects it has on people than any history book .

1.Which of the following makes the author feel the suffering that war brings to human beings?

A．The kneeling man.

B．The sound of a bagpipe.

C．The number of names carved in the stone.

D．The jungles of Vietnam.

2.The man continued to rub his fingers over the name probably because_____.

A．he found it covered with dust

B．he missed the loved one who died in a war

C．he intended to remove it completely

D．he recalled the fierce war he fought in

3.What did the author learn from the trip?

A．How fierce war is in history.

B．How people remember those who died in wars.

C．What bad effects war had on many families.

D．What we should do to prevent war.

4.According to the last paragraph, the author probably thinks that _____.

A．he should have studied history hard in class

B．history books don’t tell readers the truth

C．there is more in history than books tell us

D．the kneeling man should be a history teacher

 

查看答案和解析>>

科目：高中英語 來源：2010年山東省高二下學期期末考試英語卷 題型：閱讀理解

New York State has passed the USA’s first state law banning motorists talking on hand-held cell phones. The ban will begin November 1, although drivers caught using hand-held cell phones will be given only warnings during the first month.

First-time violators(違法者) will face a ＄100 fine. A second time call for a ＄200 fine and every violation after that will cost＄500.

At least a dozen localities(地方) have established bans, starting in 1999; and 40 states have had bans proposed but not passed. At least 23 countries, including the Great Britain, Italy, Israel and Japan, ban drivers from using hand-held cell phones.

There are about 115 million cell phones in use in the United States and more than 6 million in New York State.

“To think that I’m not going to use cell phone when at the same time I can still use my laptop, I still can read a paper, I can still change my pants(褲子) while driving 65 mph. I think there’s just something wrong,” an official said.

Other critics noted that other things like eating, drinking coffee and applying make-up while driving posed(造成) at least as much of a concern. They suggested that the ban include a broader range of things.

1.How much fine will a hand-held cell phone user receive if he has been caught using it four times while driving after November?

         A. $500.                    B. $1000.                           C. $1200.                           D. $1300.

2.We can see from this passage that _______. 

         A. the ban has been put into effect in most states in the U. S.

         B. many of the developed countries forbid drivers using hand-held cell phones

         C. over fifty localities or states ban drivers from using hand-held cell phones

         D. more people in the U. S. are against the ban than for it

3.The official mentioned in this passage _______. 

         A. does not agree with this ban

         B. doesn’t believe using hand-held cell phones while driving will cause any danger

C. doesn’t understand why hand-held cell phones alone should be banned among many others

         D. believes changing pants while driving will cause greater danger

4.The writer intends to tell us in the last paragraph that _______.

         A. it is not fair to have this ban passed

         B. the ban will never be passed in the whole country

         C. more activities of the same kind should also be banned

         D. the ban will meet with more criticism

5.This article is most probably taken from _______.

         A. a newspaper article                              B. an advertisement  

C. a personal diary                                        D. a letter

 

查看答案和解析>>

科目：高中英語 來源：2010年四川眉山中學高一期末考試 題型：完型填空

完形填空：（共20小題，每小題1.5分，滿分30分）

閱讀下面短文，從短文后各題所給的四個選項（A、B、C、D）中，選出可以填入空白處的最佳選項，并在答題卡上將該項涂黑。

Mitchell once had a very serious car accident. More than 65 percent of his  36  was burnt. He was unable to   37  a knife at dinner, or go to the bathroom without  38 . But Mitchell never believed he was    39 . “I am in charge of my own spaceship,” he said. “It’s my up or my down. I could   40   to see this situation as a defeat   41  a starting point.” Six months later Mitchell bought himself a plane and he was piloting it   42 .

Later he  43  with two friends and founded a food company that   44  to be Vermont’s second largest food company. Then four years   45  the car accident, the plane Mitchell was piloting crashed. The accident made Mitchell unable to walk anymore. “I   46  what was happening to me. What did I do to get this?”

Mitchell worked   47  day and night to regain as much independence as possible. He was elected Mayor of Crested Butte, Colorado. He   48  the town from mineral mining that would   49  its beauty and environment.

Although he had   50 looks and physical difficulties, Mitchell   51  flying and speaking in public. “Before I   52  walk, there were 10,000 things I could do,” Mitchell says, “Now there are 9,000. I can   53  cry for the 1,000 I lost or focus on the 9,000 I have. I tell people that I have had two big bad lucks in my life.   54  you think you also have bad lucks, you can step back, take a   55   view and have a chance to say, ‘Maybe that isn’t such a big deal after all.’ It’s not what happens to you; it’s what you do about it,”

36.

A. car

B. hand

C. head

D. body

37.

A. put up

B. take up

C. pick up

D. set up

38.

A. help

B. strength

C. spirit

D. pain

39.

A. burnt

B. defeated

C. touched

D. hurt

40.

A. choose

B. learn

C. come

D. manage

41.

A. and

B. but

C. or

D. so

42.

A. yet

B. again

C. ever

D. too

43.

A. appeared

B. cheered up

C. practiced

D. teamed up

44.

A. seemed

B. grew

C. happened

D. hoped

45.

A. after

B. before

C. till

D. from

46.

A. understand

B. asked

C. wondered

D. realized

47.

A. sadly

B. bravely

C. proudly

D. kindly

48.

A. took

B. accepted

C. changed

D. saved

49.

A. ruin

B. produce

C. attract

D. serve

50.

A. amusing

B. charming

C. shocking

D. moving

51.

A. stopped

B. continued

C. began

D. tried

52.

A. could

B. couldn’t

C. must

D. mustn’t

53.

A. only

B. still

C. thus

D. either

54.

A. Though

B. Unless

C. When

D. Since

55.

A. bigger

B. wider

C. louder

D. deeper

 

查看答案和解析>>

科目：高中英語 來源：20102011年江蘇省高二下期末考試英語試題 題型：閱讀理解

Everyone’s at it，even my neighbors. I thought I might be the only person left in the world who hadn't done an eBay deal. So，I decided to try my hand at online auction（網(wǎng)上拍賣）。

    Buying for beginners：Sign up on www.ebay.co.uk.  Most items（e.g. tables, computers, and books） ready for auction will come with a picture and a short description；others may be marked with "Buy It Now" and have a fixed price. You can buy these right away.

    If the item is being auctioned，you offer the highest price you are prepared to pay and eBay bids（出價）for you. The bid will be increased little by little until it goes beyond your highest bid，then you are emailed and asked if you would like to bid again. Auctions last up to 10 days and when they finish you get an email telling you whether you have won the item.

    How to pay： Sellers decide how they would like to be paid and you need to check this before placing a bid as you might not want to post a cheque or postal orders. The easiest way is through PayPal，an online payment system that takes the money away from your credit card （信用卡）。

    Selling made simple：If you plan to sell on eBay，it helps to include a picture of the item. I followed my friends' advice and put up the items I wanted to sell for a 10-day auction，starting on a Thursday. This way, buyers had two weekends to bid.

The big things in life：It' s easy to post a small item，but furniture is a big part of eBay and this has to be collected or sent by deliverymen (郵遞員). Check the ways of delivery before you bid.

1. What is the passage mainly about？

A. How to make payment online.

B. Ways of making delivery online

C. Advantages of an online-auction system.

D. How to use an online-auction system.

2. After bidding for an item，a buyer______

A. will get what he wants in ten days

B. should make payment immediately

C. has chances to make higher bids

D. may check its picture and description

3. The easiest way of making payment mentioned in the passage is______

A. through an online payment system

B. through a local banking system

C. by sending the money to the seller

D. by paying the deliveryman directly

 

查看答案和解析>>

科目：高中英語 來源：2009年佛山一中高一下學期期末考試英語卷 題型：閱讀理解

In the past, people who graduated from college felt proud of their academic achievement and confident that their degree would help them find a good job.

However, in the past four years the job market has changed dramatically. This year’s college graduates are facing one of the worst job markets in years. For example, Ryan Stewart, a graduate of San Jose University, got a degree in religious studies, but no job prospects. He points out that many people already working are getting laid off and don’t have jobs, so it’s even harder for new college graduates to find jobs.

Four years ago, the future looked bright for the class of 2003. There were many high-tech job opportunities. Graduates received many job offers, and they were able to get jobs with high salaries and benefits such as insurance and paid vacations. However, “Times have changed and it’s a new market,” according to Cheryl Allmen- Vinnidge of the San Jose State Career Center.

Allmen-Vinniage says students who do find jobs started preparing two years ago. They worked during summer vacations, they have had several internships（實習）, and they’ve majored in one of the few fields that are still hot, like chemical engineering, accounting, or nursing, where average starting salaries have actually increased over last year. Other popular fields (like information system management, computer science, and political science) have seen big declines in starting salaries.

Ryan Stewart (he had hoped to become a teacher) may just end up going back to school. “I’d like to teach college some day and that requires more schooling, which would be great in bad economy.” he said.

In conclusion, these days, to some students a degree may not be a ticket to instant wealth. For now, they can only hope its value will increase over time.

1.The word in the second paragraph is closest in meaning to ________.

A．skill

B．interests

C．opportunities

D．applications

2.Which of the following majors can get a job easily?

A．teaching

B．accounting

C．political science

D．computer science

3.The underlined sentence in the last paragraph means ________.

A．the best way to get rich is not to get a college degree

B．most students with degrees will not be able to find jobs

C．having a college degree does not qualify one for travel discounts

D．a college degree does not mean that one will find a well-paid job

4.Ryan Stewart will have to ________.

A．change his major

B．get a job teaching

C．go back to school

D．become a religious leader

5.The main idea of this passage is that ________.

A．a lot of graduates are losing their jobs

B．Ryan Stewart has not been able to find a job

C．salaries in some fields have increased in the past year

D．the job market has changed dramatically over the past 4 years

 

查看答案和解析>>

同步練習冊答案