精品一区二区免费在线观看_国产精品久久久久久av福利软件_97成人精品区在线播放_国内成人精品一区

Fear may be felt in the heart as well as in the head, according to a study that has found a link between the cycles of a beating heart and the chance of someone feeling fear.

?? Tests on healthy volunteers found that they were more likely to feel a sense of fear at the moment when their hearts are contracting(收縮) and pumping（向---送出） blood around their bodies, compared with the point when the heartbeat is relaxed. Scientists say the results suggest that the heart is able to influence how the brain responds to a fearful event, depending on which point it is at in its regular cycle of contraction and relaxation.

??? Sarah Garfinkel at the Brighton and Sussex Medical School said: "Our study shows for the first time that the way in which we deal with fear is different depending on when we see fearful pictures in relation to our heart."

??? The study tested 20 healthy volunteers on their reactions to fear as they were shown pictures of fearful faces. Dr Garfinkel said, "The study showed that fearful faces are better noticed when the heart is pumping than when it is relaxed. So our hearts can also affect what we see and what we don't see - and guide whether we see fear."

?? To further understand this relationship, the scientists also used a brain scanner(掃描儀) to show how the brain influences the way the heart changes a person's feeling of fear. "We have found an important mechanism by which the heart and brain ‘speak’ to each other to change our feelings and reduce fear," Dr Garfinkel said.

?? "We hope that by increasing our understanding about how fear is dealt with and ways that it could be reduced, we may be able to develop more successful treatments for anxiety disorders, and also for those for those who may be suffering from serious stress disorder."

1.What is the finding of the study?

A. fear has something to do with one's health.

B. fear is a result of one's relaxed heartbeat.

C. One's heart affects how he feels fear.

D. One’s fast heartbeats are likely to cause fear.

2.When are people more likely to feel a sense of fear ?

A. When the heartbeat is relaxed.

B. When their hearts are contracting.

C. When people are tired.

D. When people are happy.

3.The study was carried out by analyzing （分析）_______.

A. the time volunteers saw fearful pictures and their health conditions

B. volunteers' heartbeats when they saw terrible pictures

C. volunteers' reactions to horrible pictures and data form their brain scans

D. different pictures shown to volunteers and their heart-brain communication

4.Which of the following is closest in meaning to "mechanism" in Paragraph 6?

A. Order.           B. Machine.          C. Treatment.          D. System.

5.This study may be useful to _______.

A. treating anxiety and stress better

B. explaining the cycle of fear and anxiety

C. finding the sky to the heart-brain communication

D. understanding different fears in our hearts and heads

In the 1500s, South American fishermen said that the sea became warmer every few years. They gave this special event a Spanish name 'El Nino', meaning 'the baby'. It is called 'the baby' because it arrives around Christmas.

El Nino is a huge area of warm water in the middle of cold water in the Pacific Ocean. It happens every two to seven years. It moves around the ocean and becomes bigger and smaller at different times. This warm water affects the weather. It is always raining over El Nino. El Nino contains a lot of energy. Scientists think this energy is formed when wind comes from the northern half of the world. The winds blow across warm sea water in the south. When the strong wind hits the warm water, violent weather happens. Scientists think that El Nino existed for many thousands of years.

El Nino affects every person in the world because it affects the entire world's weather. It can bring the rain that farmers need. It can bring storms that destroy homes. It can mean that fishermen cannot catch fish, and it can bring floods. There is nothing we can do about El Nino. It is an event of nature. We can help the world's weather by trying to stop the greenhouse effect and air pollution. The most important job for scientists is to learn how to predict when El Nino is going to bring dangerous weather. Then, people can try to prepare for storms, floods and droughts. New technology like satellite pictures and temperature measuring equipment can help. Still, it is very hard to say when or where El Nino will cause damage.

1.El Nino is ______.

A) a storm that hits every two years            B) a huge area of warm water

C) a wind from the south                    D) some cold water in the Pacific Ocean

2. It happens ______.

A) every year                              B) every month

C) every seven years                        D) every two to seven years

3.El Nino ______.

A) makes the weather better                   B) affects the weather

C) gives the weather energy                   D) predicts the weather

4.It is always______ over EI Nino.

A) sunny             B) cloudy             C) rainy                D) windy

5.El Nino affects ______.

A) everybody                               B) just farmers

C) only fishermen                            D) only students

6. We can help the world's weather by______.

A) finding out more about El Nino               B) being careful during the floods

C) driving cars                               D) stopping the greenhouse effect

7.______helps to predict El Nino.

A) Looking out of the window                 B) Checking the weather each day

C) Satellite pictures                          D) New boats

閱讀下面短文 ， 根據題目要求及上下文語境填詞 ，使短文正確、通順 。每空一詞 。（ 每小題1分 ，共10分 ）

Environmental pollution is one of the most serious problems. Pollution has a bad

      1.   / ′Influəns/ on our life.

  With the d   2.   of modern industry, environmental pollution is increasing quickly. More and more factories      3.   (生產，制造) waste gas . The air is becoming dirtier and 

     4.   ，and it affects so many people’s health. Air pollution can cause b    5.   _ problems and even cancer.

The increase in the number of industries has caused the water problems, too. There are more and more chemical factories    6.    waste water into rivers and lakes. Water pollution kills fishes and other living things.

Noise pollution is also h    7.  to people’s health. It       8.    (打擾) people and many people can’t sleep well at night . It can make people     9.     /def/ and they may have hearing loss.

I hope the government can take      10. ( 措 施  ) to protect our environment in many ways .