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All the students live on floor.

A. three B. third

C. the third D. the three

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Here is a surprising and important fact: Mental work(腦力勞動) alone can’t make us tired. It sounds absurd(荒謬的). But a year ago, scientists tried to find out how long the human brain could work without reaching a stage of fatigue (疲勞). To the amazement of these scientists, they discovered that blood passing through the brain, when it is active, shows no fatigue at all! If we took a drop of blood from a day laborer(工人), we would find it full of fatigue toxins(毒素) and fatigue products. But if we took blood from the brain of an Albert Einstein, it would show no fatigue toxins at the end of the day.

In fact, brain can work as well at the end of eight or even twelve hours of effort as at the beginning. The brain is totally tireless. So what makes us tired?

Some scientists say that most of our fatigue comes from our mental and emotional(情緒的) attitudes(態度). One of England’s most outstanding scientists, J.A. Hartfield, says, “The greater part of the fatigue is of mental origin(源于精神的). In fact, fatigue of physical origin(源于身體的) is rare.” Dr. Brill, a famous American scientist, goes even further. He says, “One hundred percent of the fatigue of sitting workers in good health is because of emotional problems.”

What kinds of emotions make sitting workers tired? A feeling of being bored, angry, nervous or worried, a feeling of not being appreciated(被欣賞)--- those are the emotions that tire sitting workers. Hard work by itself seldom causes fatigue. We get tired because our emotions produce nervousness in the body.

1.What surprised the scientists a few years ago?

A. Fatigue toxins could hardly be found in a laborer’s blood.

B. Albert Einstein didn’t feel tired after a day’s work.

C. The brain could work for many hours without fatigue.

D. A mental worker’s blood was filled with fatigue toxins.

2.According to the writer, which of the following can make sitting workers tired?

A. Challenging mental work.

B. Unpleasant emotions.

C. Endless tasks.

D. Physical labor(體力勞動).

3.What’s the writer’s attitude towards the scientists’ ideas?

A. He agrees with them.

B. He doubts them.

C. He argues against them.

D. He is not willing to accept them.

4.We can infer from the passage that in order to stay energetic, sitting workers need to ________.

A. have some good food

B. enjoy their work

C. exercise regularly(規律地)

D. discover fatigue toxins

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You and your friends have been spending three years together at junior high school. You must be sad when you say goodbye to each other. Most of you may choose to send gifts to your friends. You can buy something from the stores, or you can try to make presents by yourself, or you can invite your friends to make presents with you that both of you like. However, do you think of choosing a special gift for a friend? Here are some ideas of the best gifts.

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● Print your friend’s picture on a T-shirt, with the words “ My Best Friend”.

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1.Six ideas are mentioned in the passage.

2.The students are often happy to say goodbye to each other when they graduate from junior high school.

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4.According to the passage, making presents by yourself is a good idea.

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On April 5, the State Council (國務院) published new rules about school bus safety.These new rules are stricter than the old ones.

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From now on, school buses have a speed limit (限制) of 80 km/h on highways and 60km/h on normal roads.While on the road, other cars must let school buses go first.

The new rules also say that school buses must never be overloaded (超載的).

There are many other rules as well.A school bus must have more than seven seats.On each bus, there must be at least one adult to keep an eye on the kids.Each school bus must have a fire extinguisher (滅火器), a first aid kit (急救箱) and a GPS.

Last year, a series of school bus accidents happened in China.To stop such accidents, the Central Government decided to strengthen (加強) the rules for school buses.

The most serious accident happened in Gansu in November, when a nine-seat minibus crashed (碰撞).There were 62 children inside, and 21 of them died.

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B.New rules about students’ safety.

C.New rules about students’ home.

D.New rules about class.

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B.school buses in China were not safe enough before

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