精英家教網 > 初中英語 > 題目詳情

Psychologists(心理學家) are interested in the reasons why some people like taking part in risky sports.

When they studied people who were learning to jump from a plane with a parachute, they found that the parachutists’ bodies produced large amounts of two hormones(激素), adrenaline(腎上腺素) and noradrenaline(去甲腎上腺素), just before they made their jump. These hormones help to prepare us for any sudden activity. Adrenaline increases the heart beat and provides more sugar for the muscles(肌肉), while noradrenaline makes us react(反應) more quickly. However, noradrenaline also supplies energy to a part of the brain which controls feelings of pleasure. A feeling of pleasure caused by this hormone makes certain people want to take part in dangerous sports.

Another possible reason is the level of excitement in part of the brain. According to some psychologists, the brain tries to manage a certain level of excitement. They believe that people who have a low level of excitement look for new experiences in order to fire themselves with excitement, but people who usually have a high level of excitement try to avoid risks in order not to become overexcited. If the psychologists are right, people with a low excitement level are the ones who enjoy taking part in dangerous sports and activities.

It is thought that people with low levels of excitement have a slower-reacting nervous system than people with higher levels. So it may be possible to find out your level of excitement by testing your nervous system. A quick way of doing this is to put some lemon juice on your tongue(舌頭). If you produce a lot of saliva(唾液), your nervous system has been affected(影響) by the lemon and so you probably have a high level of excitement; if you produce little saliva, you probably have a low excitement level. If you have a low level, you might enjoy taking part in risky sports. However, this does not mean that you have to try parachuting!

1.Did the parachutists’ bodies produce large amounts of adrenaline and noradrenaline before they made their jump?

_________________________

2.What does adrenaline increase and provide?

_________________________

3.Why do people with a high level of excitement try to avoid risks?

_________________________

4.How can people find out their level of excitement?

_________________________

5.Who may enjoy taking part in risky activities?

_________________________

練習冊系列答案
相關習題

科目：初中英語 來源：2020年北京西城區(qū)中考一模英語試卷 題型：單選題

Spring Festival ________in many countries now.

A.celebrates B.is celebrated C.will celebrate D.will be celebrated

查看答案和解析>>

科目：初中英語 來源：黑龍江省齊齊哈爾市甘南縣2019-2020學年七年級下學期期中英語試卷 題型：材料作文

你的朋友John工作日很忙，但周末可以放松，今天是周六，天氣很好，John和他的朋友們正在動物園里，看，這些動物們正在做什么？

要求：1.簡單描繪John的日常學習和生活。2.描繪至少兩種不同的動物，以及它們正在做什么。3.不要透露學校和姓名。4.字跡工整、卷面整潔，80---100個單詞。

_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

查看答案和解析>>

科目：初中英語 來源：黑龍江省齊齊哈爾市甘南縣2019-2020學年七年級下學期期中英語試卷 題型：單選題

Our math teacher________a father________us.

A.likes; to B.is like; to C.likes; for

查看答案和解析>>

科目：初中英語 來源：黑龍江省齊齊哈爾市甘南縣2019-2020學年七年級下學期期中英語試卷 題型：單選題

Listening to the  music always makes me   .

A.relaxed; relaxing B.relaxed; relaxed C.relaxing; relaxed

查看答案和解析>>

科目：初中英語 來源：2020年北京市朝陽區(qū)中考一模英語試卷 題型：完型填空

I take after my mother. From her I took over a curious nature, a sense of adventure and bright red hair. However, I did not receive a talent(才能) for _______ from her.

My mother never doubted that I would be a child Mozart. She found a strict Russian woman to be my piano teacher when I was four. I did whatever the teacher told me in order to _______ her. “Feel the music,” she always told me, I “felt” it. But what is more unpleasant than too many wrong notes played continuously? She “felt” my music, too, which is why she always left with a(an) _______ expression.

Once, in order to _______ my practice, I managed to record one of my own rehearsals(練習). I put on the tape recording and read until the tape had finished. That method worked for a week, until my mother began to _______ why I always missed the same note. She came in and found that I had fallen asleep while the tape of my performance played on and on.

Realizing I couldn’t be a Mozart, my mother told me to pick another instrument. From then on, I worked my way through several other instruments, but I still couldn’t play any of them _______.

Then my mother hit on another idea. She took me to a drama(戲劇) teacher. However, the teacher put me into painting scenery(舞臺布景) instead of teaching to sing. Immediately I fell in love with this active and practical world, and I discovered that I had a skill for building and painting. I loved the _______ of taking our limited supplies and using them to make something beautiful!

I’m a sculptor(雕刻家) now, and every day I _______ once again the pleasure of being fully involved in the act of artistic creation. It’s a wonderful feeling. I realize that my mother was trying to give me this feeling. Perhaps she went about it in the wrong way, but her heart was in the right place.

1.A.music B.sports C.cooking D.writing

2.A.praise B.please C.believe D.help

3.A.excited B.happy C.angry D.shy

4.A.stop B.continue C.begin D.escape

5.A.require B.argue C.wonder D.expect

6.A.secretly B.perfectly C.quietly D.politely

7.A.challenge B.change C.risk D.advice

8.A.create B.consider C.share D.experience

查看答案和解析>>

科目：初中英語 來源：2020年北京市朝陽區(qū)中考一模英語試卷 題型：單選題

My best friend ________ an old man get home yesterday evening.

A.helps B.helped C.is helping D.will help

查看答案和解析>>

科目：初中英語 來源：重慶市永川區(qū)2019-2020學年九年級上學期期末英語試卷 題型：閱讀單選

J&M Music Store:

Rock, pop and country music.

Buy CDs new or used.

Listen before you buy.

Guitar lessons offered.

Peth Market:

Fresh fruit and vegetables.

Open Friday to Sunday mornings.

Free ice cream for children under 12.

Times Coffee Shop:

The best coffee in town.

Sandwiches, cakes, pies.

Open 10:00 a.m-11:00 p.m. daily.

Jazz music (Wednesday to Sunday).

Macon’s B&B:

Feel like home when you’re away from.

We have different kinds of rooms.

Delicious homemade breakfast.

1.You can_____ at J&M Music Store.

A.Receive guitar lessons B.borrow new or used CDs

C.Learn pop music history D.buy all kinds of music books

2.You can go to Times Coffee Shop to have coffee and pies at_____.

A.8:30 a.m. B.9:30 a.m. C.10:30 a.m. D.11:30 p.m.

3.If your friend is coming for visit, where will he stay for night?

A.In J&M Music Store B.In Peth Market

C.At Times Coffee Shop D.At Macon’s B&B

4.Where is the passage probably from ____.

A.A dictionary B.A newspaper C.A storybook D.A science report

查看答案和解析>>

科目：初中英語 來源：2020年重慶市第二外國語學校中考模擬英語試卷 題型：閱讀單選

In our lives we are always playing games, because life itself is a game. Games are important for us to get knowledge and take decisions.

Games teach us to learn good or bad things. We can use the good things that the game teaches us in our lives. The bad things could do harm to our lives. Be careful with these bad things. Games can teach us bad or good things at the same time; in this case we need to separate very carefully what is bad from what is good to improve our lives.

Games teach us about history, economics (經濟) and so on. Some games come with history knowledge and help us to learn very quickly about history. Economics is very important in our lives and games teach us about how the economics work.

Games can help us a lot when we make our own decisions. Because of games, we can do quickly, sure and right. We can make decisions very quickly after we practice games. Also we are sure about our decisions because when we play games we need to be very sure what we are doing. Decisions will be right because when we are playing games we learn to be right in our steps.

Playing games teaches me a lot in my life. I am able to talk about anything because I learn a lot of things from games.

1.Games are important because they can ______.

A.develop our social skills

B.make us care for others and the environment

C.make us feel happy and safe

D.help us get knowledge and take decisions

2.The underlined word “separate” in the passage probably means ______.

A.合并 B.區(qū)分 C.消除 D.增加

3.The third paragraph mainly discusses _____ .

A.games help us get knowledge

B.games help us make our own decisions

C.games help us deal with the problems of daily life

D.games develop our physical skills

4.Because of games, we can make _______ decisions.

A.wrong B.slow C.right D.big

查看答案和解析>>

同步練習冊答案