D

Eating too much fatty food, exercising too little and smoking can raise your future risk of heart disease.But there is another factor that can cause your heart problems more immediately: the air you breathe.

Previous studies have linked high exposure (暴露)to environmental pollution to an increased risk of heart problem, but two analyses(分析) now show that poor air quality can lead to heart attack or stroke (中风)within as little as a few hours after exposure.In one review of the research, scientists found that people exposed to high levels of pollutants (污染物)were up to 5% more likely(可能的) to suffer a heart attack within days of exposure than those with lower exposure.A separate study of stroke patients showed that even air that the U.S.Environmental Protection Agency (EPA) considers to be of “moderate” (良好)quality and relatively safe for our health can raise the risk of stroke as much as 34% within 12 to 14 hours of exposure.

The authors of both studies stress(强调)that these risks are relatively(相对的)small for healthy people and certainly modest compared with other risk factors such as smoking and high blood pressure.However, it is important to be aware of these dangers because everyone is exposed to air pollution regardless of lifestyle choices.So stricter regulation(规章制度)by the EPA of pollutants may not only improve environmental air quality but could also become necessary to protect public health.

1.The text mainly discusses the relationship between _______.

A.heart problems and air quality

B.heart problems and exercising

C.heart problems and smoking

D.heart problems and fatty food

2.The underlined word “modest” in Paragraph 3 most probably means_________ .

A.relatively high

B.extremely(极大地)low

C.relatively low

D.extremely high

3.What can we learn from the text?

A.Eating fatty food has immediate effects on your heart

B.The EPA conducted many studies on air quality

C.Moderate air quality is more harmful than smoking

D.Stricter regulations on pollutants should be made.

4.The author's purpose of writing the text is most likely to________

A.inform

B.persuade(说服)

C.describe

D.entertain(娱乐)

信息匹配(共1小题)

根据短文内容,从短文后的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选项。

Travel Exercise Tips

Walk around town._1.__ But by walking around you'll get a better and true feel for the area via the shops and local businesses.You will also see more of the city, as well as discover interesting side streets to explore.

Plan ahead.Book a hotel that has a gym or pool you can use.Look for a fitness club that allows guest visitors.Cities such as Los Angeles even have running tours that offer guided runs.__2.___ Investigate the local area for a state park or natural that needs to be explored with camera in hand.

Pack a jump rope.Yes, a simple little rope can get your heart rate (心率) rising quickly while putting a smile on your face.Most of the people have found much pleasure in skipping rope especially when very young.__3.___Jump ropes are light, portable and don't take up much room in your bag.You can also share your companions(旅伴)by setting a competition of who can jump the most times in a row without stopping.

Put together a quick workout.Look around your hotel room for items that may be used to add resistance as in strength training.___4.__ The creativity involved (有关联的) can almost be rewarding as the workout itself.

__5.___ Make an effort to find time on the road during which you can do a workout.Remember that the government recommends accumulating (积累) 30 minutes of activity a day.With the above tips, it shouldn't be too hard.

A.But it is still fun as an adult.

B.True, a taxi or the subway can be faster.

C.Most gyms offer group exercise classes such yoga.

D.With such guidance you can know the neighborhood is safe.

E.Travelling is fun, but don't forget to take your fitness with you.

F.Muscles can be used to always working in the same way.

G.They may be bottles of water, backpack with few books in it, a door frame or a set of stairs.

完形填空(共1小题)

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。

Most people agree that a pet adds joy to a person's life.Scientists are now finding that having a pet may keep its owner ____.And good health may add years to a person's life.

Scientists have been ____ the link between pets and health for years.In 1990, a study was done with people aged 65 and older.It ____ that pet owners went to the doctor less than people ____ pets.Do pets make people ____? Are people able to handle their everyday lives better? Alan Beck, who is a researcher, says that ____ the answer to the questions is yes, then having pets may be a good idea.

Can pets also help people live longer? Rebecca Johnson did a study to ____.Johnson teaches nurses how to care for ____ people.Her study shows that having pets may cause people to ____ more slowly.

The human body makes many chemicals.Some of the chemicals make people feel ____.Others make people feel bad.In Johnson's ____, levels of the “good” chemicals ____ when people were around pets while levels of the “bad” chemicals went down.The good ____ seemed to slow the aging of cells.If this is __ _, maybe people should spend more time with their ____.Then people might feel better and ____ longer.

You might be allergic(过敏的)to pets.Or you may not want to __ __ a pet.Never fear.A robotic, or computer pet may be just the thing for you.

Scientists are testing computer pets, like the robotic dog AIBO.They want to see if ____ pets can help people the way ____ dogs do.

Will a robotic pet ____ the real pet sitting with you on the sofa? Something tells us that it will probably become a reality.

1.A.healthy B.excited C.mad D.hurried

2.A.carrying out B.making up C.looking at D.breaking down

3.A.warned B.showed C.reminded D.advised

4.A.through B.beyond C.against D.without

5.A.busier B.funnier C.happier D.angrier

6.A.though B.until C.if D.unless

7.A.find out B.put out C.turn out D.set out

8.A.sick B.friendly C.old D.lovely

9.A.age B.move C.walk D.grow

10.A.bored B.surprised C.sleepy D.good

11.A.study B.work C.story D.case

12.A.changed B.varied C.fell D.rose

13.A.sides B.chemicals C.studies D.dogs

14.A.important B.unusual C.true D.impossible

15.A.children B.pets C.friends D.neighbors

16.A.live B.wander C.stay D.travel

17.A.head for B.search for C.cheer for D.care for

18.A.family B.computer C.baby D.toy

19.A.brave B.quiet C.faithful D.real

20.A.destroy B.replace C.improve D.accompany

C

Fifteen hours is a long time to be on a plane ,but you know ,Africa is a long way from North America.Finally ,we're in Namibia, a country in southwest Africa.Namibia is about twice the size of California.However, it is home to just over two million people.And the country's main airport is 45 kilometres east of its capital,Windhoek.

Now we are in a wildlife(野生动物)park.We will spend five days finding ways to protect this area's wildlife.At the moment ,my wife and our two kids are enjoying some local dishes.I'm talking with workers in this park.I'm so much looking forward to the following days !

--Thomas

Yesterday morning ,I had nothing to do ,so I went to visit the Eiffel Tower,a symbol of Paris.It was my first time there,so I took a lot of photos.

Finally.The big moment came! A lot of artists came to watch my show.It was a great success.After the show, I attended a big party.It was great,but i felt so sleepy after it.

When I got back to my hotel, it was already 1:15am.I went to bed without washing.I just needed a good rest before my two-hour journey home by plane.

--Jessica

1.How did Thomas arrive in Namibia ?

A.By car

B.By plane

C.By ship

D.By train

2.What do we know about Namibia ?

A.It is in northeast Africa

B.It is about as large as California

C.Less than two million people live there

D.Its capital city is Windhoek

3.what does the underlined word “It”refer to ?

A.A journey

B.A big party

C.the show

D.the Eiffel Tower

4.How did Jessica feel after party?

A.Tired

B.Excited

C.Nervous

D.Bored

D

Dear Bewildered,

Table manners are about being kind to and considerate(考虑周到的)of others.Having proper table manners is one way people judge others,and we don't want people to think that we are rude,do we ?

Whether in a restaurant or in a home, here are some basic table manners for kids:

①Eat with a fork unless the food is meant to be eaten with fingers.Only babies eat with fingers.

②Sit up and do not hunch(弯背)over your plate;wrists(手腕)or forearms(前臂)can rest on the table,or hands on lap.

③Chew with your mouth closed,No one wants to see food being chewed up.This includes no talking with your mouth full.

④Don't make any rude comments about any food being served.It will hurt someone's feelings.Always say thank you when you're served something.

⑤Eat slowly.It takes someone a long time to prepare the food,so enjoy it slowly.Wait about 5 seconds after swallowing to get another forkful(一叉子的量)。

⑥ Don't reach over someone's plate for something.Politely ask the dish to be passed to you.

⑦When eating at someone's home or being a guest of someone at a restaurant,always thank the host and tell him or her how much you enjoy it.At least say that you like the dinner ,for example, the dessert is great.

1.The writer writes this passage mainly for

A.Foreigners

B.kids

C.Parents

D.teachers

2.Why should we eat slowly at the table ?

A.To keep healthy.

B.To show how bad the food is.

C.To show how enjoyable we are.

D.To eat more food.

3.The writer gives pieces of advice in all in the passage.

A.Four

B.five

C.six

D.seven

4.What can we learn from the passage?

A.People don't like to judge others by table manners.

B.Guests should express thanks to the host after the meal.

C.we don't need to sit straight at the table.

D.We can use our fingers from time to time.

 0  134297  134305  134311  134315  134321  134323  134327  134333  134335  134341  134347  134351  134353  134357  134363  134365  134371  134375  134377  134381  134383  134387  134389  134391  134392  134393  134395  134396  134397  134399  134401  134405  134407  134411  134413  134417  134423  134425  134431  134435  134437  134441  134447  134453  134455  134461  134465  134467  134473  134477  134483  134491  151629 

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网