A study finds that not enough morning light causes teenagers not to get enough s - 初中英语试题 - 超级试练试题库

题目

题型：不详难度：来源：

A study finds that not enough morning light causes teenagers not to get enough sleep at night. “As teenagers spend more time indoors, they miss necessary morning light. Day light is needed to keep the balance of the body’s 24-hour biological system (生物系统), which regulates (调节) body temperature and sleep styles,” reports Dr. Mariana Figueiro. “These teenagers who receive little morning light are going to bed later, getting less sleep and doing badly in tests. They are more likely to fail in their exams.”
In the study, Dr. Figueiro asked 11 students in Grade 8 to wear special glasses to prevent blue morning light from reaching their eyes. At the end of the 5-day study she found that they fell asleep 30 minutes later than usual.
Throughout her research, Dr. Figueiro has been very worried about teenagers going to bed too late. The problem is that today’s schools require teenagers to be in school very early in the morning. These students are likely to miss the morning light because they often go to school before the sun is up or as it’s just rising.
Furthermore (此外), the schools are not likely to provide enough electric light to keep the balance of this biological system. Our biological system is much more sensitive (敏感的) to blue light. Therefore, having lots of light in the classroom does not make sure that there is enough light to keep our biological system balanced.
小题1:Which of the following is the result of the study?

A．Blue light in the morning harms the biological system.

B．Not enough morning light keeps teenagers sleep less.

C．Not getting more light in the morning make teenagers happy.

D．Not enough sleep makes teenagers fail in tests.

小题2:We know from the passage that morning light __________.

A．has the same effects as afternoon light

B．may change studying habits of teenagers

C．is important to children’s biological system

D．has no effect on students’ tests

小题3:What’s the problem of the students according to the study?

A．There are not enough electric lights in the classroom.

B．Being in school early affects their study habits.

C．They have to go to bed very early to have enough sleep.

D．They go to school too early to get enough morning light.

答案

小题1:B
小题2:C
小题3:D

解析

小题1:细节理解题，根据文中语句“A study finds that not enough morning light causes teenagers not to get enough sleep at night.”理解可知。
小题2:细节理解题，根据文中语句“Day light is needed to keep the balance of the body’s 24-hour biological system (生物系统), which regulates (调节) body temperature and sleep styles,”理解可知。
小题3:细节理解题，根据文中语句“The problem is that today’s schools require teenagers to be in school very early in the morning.”理解可知。

核心考点

试题【A study finds that not enough morning light causes teenagers not to get enough s】；主要考察你对科普环保类等知识点的理解。[详细]

举一反三

Biggie Burger, a new fast-food restaurant, will soon be opened in the town. A large group of kids and parents were holding signs shouting outside it yesterday. They were there because they didn’t want the restaurant to open. Never!
“This kind of food is really bad for us!” said Diana, “It’s high in salt, fat, and sugar. it’s unhealthy and we are going to say ‘no’ to it!”
“Our town has been a quiet place. Restaurants like these bring people and also a lot of trouble to this area,” said Barbara. “And I’m afraid they will take business away from our local restaurants.”
Other local people don’t agree. The officials（官员） believe that Biggie Burger will bring in huge amounts of money to help improve the town. And 17-year-old Sandy can’t wait for Biggie Burger to open.” I love their hamburgers and fried chicken wings! And I can get a job there.”
Sandy’s dad, a cleaner, agrees, “Biggie Burger’s prices are just right for a family like ours.”
Michael, who owns a toy shop next door to Biggie Burger, is excited, too. “Maybe people who come for a Biggie Burger will spend a few minutes in my store and pick up something.”
The town will hold a meeting on Thursday to hear sides. Everyone is welcome to take part in it. Come and give your opinion!
根据短文内容，判断下列句子正误。正确的用“A”表示，不正确的用“B”表示。
小题1:Biggie Burger was opened yesterday and many people were there.
小题2:Diana thinks that the food in Biggie Burger is too expensive.
小题3:Barbara is afraid that fewer people will come to the local restaurants.
小题4:Sandy and Michael welcome the opening of Biggie Burger.
小题5:The town doesn’t care about people’s opinions when making a decision.

题型：不详难度：| 查看答案

We are all learning English, but how can we learn English well? A student can know a lot about English, but maybe(可能) he can’t speak English. If you want to know how to (如何) swim, you must get into the river. And if you want to be a football player, you must play football.
So, you see. You can learn English only by(通过) using(使用)it. You must listen to your teacher in class. You must read your lessons every day. You must speak English to your classmates and also you must write something sometimes. Then one day, you may find your English very good.
小题1:You know a lot about English but maybe you

A．can speak	B．can study it
C．can’t study it	D．can’t use it

小题2:If you want to learn to swim you should

A．gets into the river

B．read books about swimming

C．learn from other people first

D．play football well first

小题3:If you want to be a football player, you should

A．buy a good football

B．play football

C．watch others play football

D．put your football away

小题4:The story of learning swimming and playing football tells us

A．we learn English by using it

B．swimming needs water

C．playing football is easy

D．learning English is difficult

小题5:If you want to study English well, you must often

A．speak English	B．write in English
C．listen to English	D．A, B, and C

题型：不详难度：| 查看答案

Spending two or three hours playing outdoors each day can reduce(减少)a child’s chance of becoming short-sighted（近视）,research shows . It challenges the belif that short-sightedness is caused by computer use , watching TV or reading in weak light .
Australian government researchers believe that sunlight is good for people’s eyes . They compared the vision （视力）and habits of 100 seven-year-old children in China and Australia .In all,30% of the Chinese children were short-sighted .This percentage was ten times higher than Australian children.
Both groups spent a similar amount of time reading, watching TV and playing computer games .However , the Australia children spent an average of two hours a day outdoors ,90 minutes more than the Chinese children.
Professor Ian Morgan said ,“Humans are naturally long-sighted ,but when people begin to go to school and spend little or no time outdoors ,the number of short-sighted peoplegets larger. We are also seeing more and more short-sighted children in cities all around the world –and the main reason may be that city children spend less time outdoors .
Daylight can be hundreds of times brighter than indoor light . But why does playing outside prevent us from becoming short-sighted ? Scientists believe that natural light has a special chemical（化学物质）which stops the eyeball from growing out of shape and prevents people from becoming short-sighted .
So go outdoors .It doesn’t matter if that time is spent having a picnic or playing sports .
根据材料内容选择最佳答案，并将其标号填入题前括号内。
小题1:What can reduce a child"s chance of becoming short-sighted according to the passage ?

A．Playing computer games.

B．watching TV.

C．Reading books.

D．Spending 2 or 3 hours playing outside every day.

小题2:What does the underlined word "percentage" mean?

A．百分比

B．功率

C．平均分

D．效率

小题3:How much time did the Chinese children spend outdoors according to the research?

A．2 hours.

B．90 minutes.

C．1 hour.

D．30 minutes.

小题4:What is the fifth paragraph mainly about?

A．Why people become short-sighted.

B．Why natural light has a special chemical.

C． Why playing outside is good for one"s eyesight.

D． Why daylight is much brighter than indoor light.

小题5:Which of the following is TRUE according to the passage?

A．People will all become short-sighted after they begin to go to school.

B．Playing outdoors for 2 or 3 hours every day can help protect your eyesight.

C． Children in Australia are more likely to become short-sighted than those in China.

D． lf you spend 2 or 3 hours playing outside each day, you will become short-sighted.

题型：不详难度：| 查看答案

No air means death. There is air around us 36 we can’t see it. Air is everywhere and it gives   37 　to every living thing. We can’t live 38  it. Bad air makes people ill. We must have fresh air to keep us 39 .
In the city there are a lot of people and there are too many 40  running on the road. The gas which the car sends out is made up of(组成) bad gases. Every day we 41  it in and        out. This makes us feel sick. There are many 42 , too. From the chimneys(烟囱) of these factories, we 43  get the smoke in black color. This kind of smoke is 44 to our health. So in order to keep us healthy, we have to go out to the   45  to breathe more fresh air. Or we can go up hills to get more fresh air.
小题1:A. because            B. though              C. so
小题2:A. life               B. name     　        C. pleasure
小题3:A. with               B. without         C. below
小题4:A. quiet              B. tall      　   C. healthy
小题5:A. dogs           B. trains     　 C. cars
小题6:A. breathe            B. draw      　   C. bring
小题7:A. animals            B. people          C. factories
小题8:A. usually 　　      B. never    　        C. seldom
小题9:A. helpful    　　    B. dangerous       C. necessary
小题10:A. office   　      B. city            C. Countryside

题型：不详难度：| 查看答案

Did you see snow in your hometown last winter? Did you feel it was warmer than before?
"There have been 21 warm winters in China since 1986," said scientists. They also said that in the past 100 years, as the global (全球的) temperatures went up by 0.74 °C , the temperature in North China has climbed 1.4 °C in only 50 years.
China needs to take quick action to cut carbon dioxide emission (排放)
because it"s the main reason for global warming. The good news is that China has seen the importance of going green. China set the goal of cutting energy use by 20% and pollution emission by 10% in the 11th Five-Year Plan.
Can you slow down global warming? Sure! You and your family can take steps to cut the amount of carbon dioxide that is sent out into the air.
Here are some pieces of advice to help you save the earth..
Wear used clothes. Wearing your brother"s, sister"s or dad"s old T-shirt means you save the energy.
Change your light bulbs (灯泡). Use energy-saving light bulbs. And don"t forget to turn off the lights when you leave a room and turn off your television and computer when they are not in use!
Ride the bus. Taking a bus saves a lot of oil every year.
Say no to plastic bags. The next time your parents go to the market, ask them to use baskets
Open a window. Don"t use the air conditioner, and let some fresh air in. When you have to use the conditioner, set the temperature higher in the summer and lower in the winter to save energy.
Make small changes in your daily life. Don"t use paper cups, bags and boxes.
It"s time for all of us to do something to save the earth.
小题1: How many pieces of advice are there in this passage?
A. Three. B. Four C. Five. D Six
小题2: Which of the following is true?

A．It"s a pity to wear your dad"s old T-shirts.

B．Using air conditioners may be a waste of energy.

C．Taking a bus wastes a lot of oil every year.

D．Using paper bags saves energy a lot.

小题3: The passage is mainly about the ways to ____.

A．slow down global warming

B．make energy

C．change our daily life

D．change the world weather

题型：不详难度：| 查看答案

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