题目内容

Americans have developed an olive oil habit. Out to dinner recently, I saw a man dipping his white bread in olive oil and then pouring it all over his salad, saying, "Wow, this is so good for me!"

But is olive oil the healthiest fat? No, it's not. You might ask, doesn't it lower cholesterol(胆固醇)? Well, only when you substitute olive oil in equivalent amounts for butter or oils that are higher in saturated(饱和的)fat. Olive oil doesn't lower cholesterol; it just doesn't raise it as much.

You may be better off with canola(菜籽油) oil. The 1999 Lyon Diet Heart Study found that a Mediterranean diet significantly reduced heart attacks and premature deaths. Many people attributed this to eating a lot of olive oil. But it was increased consumption of canola oil that accounted for these improvements.

Also, study participants ate more whole-grain bread, vegetables, fish and fruit, and less meat. Butter and cream were replaced with man-made butter made from canola oil, which has more healthy omega-3 fatty acids than olive oil does.

Another study found that olive oil reduced blood flow by 31%. Canola oil and fish oil don't. (You want to increase blood flow to all body parts.)

I like the taste of olive oil, and I use it sometimes. It's a healthier fat than many others, but it's not nearly as healthy as canola oil -- or fish oil and flaxseed oil, for that matter, which also have lots of omega-3s. And a tablespoon of any oil has 126 calories. Think about that before you pour it on.

1.It can be inferred that in America ________.

A. most people prefer canola oil than olive oil

B. most people think olive oil is healthier than others

C. people use olive oil to help them lose weight

D. most people choose olive oil for its better taste

2.The author may advise people _______.

A. to choose canola oil instead of olive oil

B. to think over before choosing new products

C. to keep on eating olive oil to keep healthy

D. to consult the researchers before accepting a trend

3.According to the author, olive oil ________.

A. isn’t as health as most people think

B. can be used as a substitute for meat

C. can help increase the blood flow

D. contain less calories than other oils

4.A Mediterranean diet reduced heart attacks and premature deaths thanks to .

A. olive oil B. butter C. canola oil D. Bread

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  Napoga is a 12-year-old girl in Ghana (加纳) ,Africa. It is hard for her family to get clean water. Every morning,she leaves home at half past five to get clean water for her family in a village far away. It takes her six hours to get enough clean water for daily cooking and drinking. She has no time to go to school or to play with her friends. Millions of people in the world are like Napoga. They can't get enough clean water to keep healthy.

   Earth Day is on April 22. But on all other days?we must also remember it. The water we use is the most important natural resource (自然资源) on the earth.

   Water covers 70% of the earth's surface. But most of that is sea water. We can't use it for very many things. Fresh water covers only 1% of the earth's surface.

   You probably feel lucky that your life isn’t as hard as Napoga's. But that doesn’t mean you don't have to worry about water. We all face serious water problems. One of them is water pollution. All kinds of things from cars,factories,farms and homes make our rivers,lakes,and oceans dirty. Polluted water is very bad for people to drink. And dirty water is bad for fish,too. Now,34% of all kinds of fish are dying out.

   How do cars and factories make our water dirty? First,they pollute the air. Then,when it rains,the rain water comes down and makes our drinking water dirty. Dirty rain,called acid rain (酸雨) ,is also bad for plants,animals and buildings.

   Scientists say that in 30 years,more than half of the people in the world won’t have enough clean water. We have to learn how to save more water for ourselves and our children. Here is some advice for saving water:

   . Turn off the water while you brush your teeth. You can save as much as 450 liters (升) each month.

   . Leaky taps (漏水的龙头) waste a lot of water. Fix them right away!

   . You can easily cut your 10-minute showers in half— and you’ll be just as clean.

   . When you wash dishes,don't let the water run.

   . Only wash clothes when you have a lot to wash. If your washing machine isn’t full,you’re wasting water!

() 1. Every morning Napoga went to get clean water.

   A. before she went to school   B. after she finished school

   C. without going to school   D. after she played with her friends

() 2. On the earth, .

   A. sea water is widely used than fresh water

   B. there is very little water for our living

   C. there is 71% of fresh water

   D. we don't need to worry about water

() 3. Acid rain .

   A. is only bad for living things

   B. can be produced in factories

   C. doesn’t do harm to people,but it's bad for plants,animals and buildings

   D. doesn’t just do harm to human beings but to animals,plants and buildings

() 4. Which of the following wastes water?

   A. We need ten minutes if we want a clean shower.

   B. We should put in enough clothes when we wash clothes in washing machines.

   C. You can keep yourself clean by having a shower for five minutes.

   D. Don’t let the water run when we brush our teeth and wash dishes.

() 5. What's the main idea of the passage?

   A. Something must be done to prevent water form being polluted.

   B. Clean water means much to human beings and living things around us.

   C. It's time to take care of the water we use.

   D. Water is the most important natural resource on the earth.

You may not pay much attention to your daily elevator ride. Many of us use a lift several times during the day without really thinking about it. But Lee Gray, PhD, of the University of North Carolina, US, has made it his business to examine this overlooked form of public transport. He is known as the “Elevator Guy”.

“The lift becomes this interesting social space where etiquette (礼仪) is sort of odd (奇怪的),” Gray told the BBC. “They (elevators) are socially very interesting but often very awkward places.”

We walk in and usually turn around to face the door. If someone else comes in, we may have to move. And here, according to Gray, lift users unthinkingly go through a set pattern of movements. He told the BBC what he had observed.

He explained that when you are the only one inside a lift, you can do whatever you want – it’s your own little box. If there are two of you, you go into different corners, standing diagonally (对角线地) across from each other to create distance. When a third person enters, you will unconsciously form a triangle. And when there is a fourth person it becomes a square, with someone in every corner. A fifth person is probably going to have to stand in the middle.

New entrants to the lift will need to size up the situation when the doors slide open and then act decisively. Once in, for most people the rule is simple – look down, or look at your phone.

Why are we so awkward in lifts?

“You don’t have enough space,” Professor Babette Renneberg, a clinical psychologist at the Free University of Berlin, told the BBC. “Usually when we meet other people we have about an arm’s length of distance between us. And that’s not possible in most elevators.”

In such a small, enclosed space it becomes very important to act in a way that cannot be construed (理解) as threatening or odd. “The easiest way to do this is to avoid eye contact,” she said.

1.The main purpose of the article is to _____.

A. tell us some unwritten rules of elevator etiquette

B. share an interesting but awkward elevator ride

C. remind us to enjoy ourselves in the elevator

D. analyze what makes people feel awkward in an elevator

2.According to Gray, when people enter an elevator, they usually _____.

A. turn around and greet one another

B. try to keep a distance from other people

C. look around or examine their phone

D. make eye contact with those in the elevator

3.The writer wrote the passage in a tone of ___________.

A. disapproved B. supportive

C. negative D. objective

4.Which of the following describes how people usually stand when there are at least two people in an elevator?

Lisa Pina never thought she would need the fire safety training she received during her apprenticeship (学徒期) as a union painter and dry waller. On Friday morning,she was thanking God she had it.

On Thursday night,while Pina was babysitting her granddaughter,nephew and two nieces in her sister’s apartment,she smelled smoke and realized the apartment building was on fire. When her 4?year?old granddaughter Ilean Garcia began saying,“We’re going to die,”she knew she had to act.Pina,39,first sealed the door,and then told all four children to get on the floor. After calling 911,she told the children to start singing and promised them all treats as soon as they reached safety. “I said,‘OK,we’re going to lie down and we’re all going to play a game,’” Pina said. “We all started singing our ABCs and 123s.I was just trying to make it fun.” Pina patiently waited,and a few minutes later,Riverside County sheriff’s deputies (治安官的助手) arrived. Pina,Ilean,8?year?old Gabriel Parga,5?year?old Aubreyana Parga and 4?year?old Meriyah Parga were all trapped on the second floor as flames filled the first story. Pina did the only thing she could. She opened the window and dropped the children,one?by?one,into the arms of the sheriff’s deputies about 15 to 20 feet below. “I just needed to keep the kids calm so they wouldn’t be afraid,”Pina said. “I was deathly afraid inside,but I couldn’t let them know that.”[Not long after dropping the children out of the window,firefighters arrived with a ladder and rescued her. Ten people were treated at the scene for suffering smoke,but nobody was seriously injured.

1.The text is mainly about________.

A.a big fire without serious injury

B.an urgent call 911

C.a brave babysitter

D.a babysitter rescuing kids from a big fire

2.The underlined word “it” in Paragraph 1 refers to________.

A.a union painter

B.a dry waller

C.the fire safety training

D.the apprenticeship

3..Before Lisa Pina called 911,in order to prevent the fire,she________.

A. let children get on the floor

B.opened the windows of the second floor

C.closed the door hard

D.had children start singing

4.According to the text,we know that________.

A.Lisa Pina was the last one to be rescued

B.the fire didn’t cause any injury

C.the children were sent to hospital after the fire

D.during the fire Lisa Pina wasn’t afraid at all

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