Have you ever wondered why some days all you ...

Have you ever wondered why some days all you want to do is snack?

Under normal circumstances, we feel hungry when we have burnt up the food we have eaten as energy and our blood sugar and insulin (胰岛素)levels begin to drop. Ghrelin, a hormone connected to appetite, then communicates this to the brain, which is how we feel the need to eat. But some sorts of things can influence this process.

According to a 2011 study by researchers at Columbia University in the US, those who are lack of sleep eat almost 300 calories a day more than those who get enough sleep. This is because levels of the hormone ghrelin, which tells the brain we need to eat, increase when we don’t get enough sleep.The Columbia researchers noted that the women who didn’t get enough sleep took in more fat rising by around 30g on sleep-lack days－four times as much as the average increase for men.

The bright blue light emitted by devices such as smartphones and tablets may give an unwelcome encouragement to your appetite. Research this year found that your appetite continued to increase when you are exposed to the light. It also changed people’s metabolism(新陈代谢), as blood tests showed that the blue-light subjects had higher insulin and glucose levels. One possible explanation is that bright blue light at night confuses our body clock, which has a role in controlling when we feel the need to eat.

1.What really causes people to feel hungry?

A.Our brain. B.A hormone. C.Our appetite. D.Blood sugar.

2.Which of the following is true?

A.Women take in fat easily.

B.Lack of sleep may lead to hunger.

C.The body clock does harm to hunger.

D.Blue-light subjects control appetite.

3.What does the underlined word “emitted” mean in Paragraph 4?

A.Broken out. B.Picked up. C.Taken place. D.Given off.

4.What is the purpose of the passage?

A.To analyse a food study.

B.To report the situation of health.

C.To tell the factors influencing hunger.

D.To introduce the importance of snack.

高二英语阅读选择中等难度题查看答案及解析

Have you ever wondered?

Why do airplanes take longer to fly west than east?

It can take five hours to go west-east from New York(NY) to London but seven hours to travel east-west from London to NY. The reason for the difference is an atmospheric phenomenon known as the jet(喷射) stream. The jet stream is a very high altitude wind which always blows from the west to the east across the Atlantic. The planes moving at a constant air speed thus go faster in the west-east direction when they are moving with the wind than in the opposite direction.

What would happen if the gravity on Earth was suddenly turned off?

Supposing we could magically turn off gravity. Would buildings and other structures(建筑物) float away? What happened would depend on how strongly the things were attached （附着）to the Earth. The Earth is moving at quite a speed, moving at over a thousand miles per hours. If you turn something around your head on a string（细绳）, it goes around in a circle until you let go of the string. Then it flies off in a straight line. ‘Switching off’ gravity would be like letting go of the string. Things not attached to the Earth would fly off in a straight line. People in buildings would suddenly shoot upwards at a great speed until they hit the ceiling. Most things outside would fly off into space.

1.What information can we get from the first passage?

A.It is jet stream that affects how fast airplanes fly

B.Planes go slower when they are moving with the wind

C.It takes more time to fly from NY to London than from London to NY

D.The yet stream always blows from the east to the west across the Atlantic

2.The word “shoot” underline in the 2^nd passage probably means “          ”

A. send for        B. move quickly    C. come out     D. grow quickly

3.It can be inferred that without gravity  .

A. buildings and other structures would float away

B. trees and buildings would not easily fly off

C. something around your head would not fly away

D. everything outside buildings would fly off into space

高二英语阅读理解中等难度题查看答案及解析

Have you ever wondered?

1. Why do airplanes take longer to fly west than east?

It can take five hours to go west-east from New York (NY) to London but seven hours to travel east-west from London to NY. The reason for the difference is an atmospheric phenomenon known as the jet(喷射) stream. The jet stream is a very high altitude wind which always blows from the west to the east across the Atlantic. The planes moving at a constant air speed thus go faster in the west-east direction when they are moving with the wind than in the opposite direction.

2. What would happen if the gravity on Earth was suddenly turned off?

Supposing we could magically turn off gravity. Would buildings and other structures float away? What happened would depend on how strongly the things were attached to the Earth. The Earth is moving at quite a speed, moving at over a thousand miles per hour. If you turn something round your head on a string, it goes around in a circle until you let go of the string. Things not attached to the Earth would fly off in a straight line. People in buildings would suddenly shoot upwards at a great speed until they hit the ceiling. Most things would fly off into space.

1. What information can we get from the first passage?

A. The jet stream always blows from the east to the west across the Atlantic.

B. Planes go slower when they are moving with the wind.

C. It takes more time to fly from NY to London than from London to NY.

D. It is the jet stream that affects how fast airplanes fly.

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

A. send for 　　 　 B. come out

C. move quickly　　 D. grow quickly

3. It can be inferred that without gravity _________.

A. trees and buildings would not so easily fly off

B. buildings and other structures would float away

C. something around your head would not float away

D. everything outside buildings would fly off into space

4. Where can we most probably read this text?

A. In a student’s book　　　　　　　　 　 B. In a short story

C. In a travel magazine　　　　　　　　　 D. In a research paper

高二英语阅读理解中等难度题查看答案及解析

Easy ways to have the best day ever

Having to set an alarm every day to wake up early is an awful feeling. So what if you could wake up in the morning and be ready to take the day on head first? Well, it takes just several simple steps. Wake up, and be awesome!

Get ready the night before.

The first approach to becoming a morning person and ensuring you have an amazing day is getting ready the night before. Keep your bags ready to go, filled with a snack for the day and all your belongings. 1.

Try and stay off your phone.

We are all guilty of getting up，then going straight on our phones, then two minutes turns into 20 and then it is rush, rush! Avoid going on your phone apart from turning your alarm off. 2. They can be read afterwards.

3.

When you get to work/ school or even if you are home for the day, prepare for some tasks in advance. Put the most important one at the top in red so that you know that you have to get it done firstly.

Eat breakfast.

There is no denying that the best way to feel and look good for the entire day is by eating your breakfast. Just eat something, a breakfast bar or even a piece of fruit. 4. Your body needs food to keep it going and a hungry stomach puts you in the worse mood.

Be positive

The last way to have the best day ever is not to think of all the things that went wrong yesterday or all the things you need to get done but haven’t got enough time for. The thought will stress you out even more. 5.

Now you’re on the path to having the best day ever.

A.Ignore the messages.

B.Write a list of things to do.

C.Find the best feeling to finish a task.

D.Make sure you will not forget anything.

E.A positive mind is beneficial for you to solve all the problems.

F.So focusing on the good things that could happen will be helpful.

G.This will energize your brain and start to make the nervous system work.

高二英语七选五中等难度题查看答案及解析

Some people think that as more and more people have televisions in their homes, fewer and fewer people will buy books and newspapers. Why read an article in the newspaper, when the TV news can bring you the information in a few minutes and with pictures? Why read the life story of a famous man, when a short television program can tell you all that you want to know?

Television has not killed reading, however. Today, newspapers sell in very large numbers. And books of every kind are sold more than ever before. Books are still a cheap way to get information and enjoyment. Although some books with hard covers are expensive, many books are printed today as paperbacks (平装本), which are quite cheap. A paperback collection of short stories, for example, is always cheaper than an evening at the cinema or the theater, and you can keep a book for ever and read it many times.

Books are a wonderful provider of knowledge and pleasure and some types of books should be in every home. Every home should have a good dictionary. A good encyclopedia (百科全书), though expensive, is useful, too, because you can find information on any subject. Besides, you can have such books as history books., science textbook, cookbooks, and collections of stories and poems. Then from time to time you can take a book of poems off your shelves and read the thoughts and feelings of your favorite poets.

1.It can be inferred from the passage that ________.

A.TV programs are a chief provider of knowledge

B.cinemas are the best choice in getting information

C.reading is a cheap way of learning and having fun

D.newspapers are an expensive way to enjoy oneself

2.What does the sentences “Television has not killed reading, however ” underlined in the second paragraph suggest?

A.People only need reading, though. B.Reading is still necessary today.

C.Reading is more fun than television. D.Watching television doesn’t help reading.

3.What can we learn from the passage?

A.Fewer and fewer people will buy books.

B.A good dictionary should be kept in every home.

C.Books with hard covers sell better than paperbooks.

D.More people like TV programs about famous men.

高二英语阅读选择中等难度题查看答案及解析

Drawing For Fun

You will learn some basic techniques using soft pencils. These and different types of paper are provided. Just bring yourself and a willingness to ''have a go''. This is a start-up day so people who have already attended courses should not apply.

Time: 1:00 PM-3:00 PM

Focus On Landscapes

This course is designed for students who are familiar with painting in watercolours, but are having difficulty with some techniques. We will discuss choice of materials, colour mixing and other areas that may be raised.

The day will start with a demonstration, followed by a chance to paint outdoors. After a light lunch cooked in the studio, there will be a further practice session.

Time: 9:30 AM-3:00 PM

Find Your Voice

You may feel you can’t sing or you may be a good singer who wants to develop singing skills. You will be shown how to sing correctly and how to project your voice. You may atend this course more than once and each time you will have a wonderful experience. Everyone can sing and it's great fun.

Time: 2:00 PM-5:00 PM

The Music Takeaway

Get some friends, family or coworkers together for your own music course in a place of your choice, which could be your front room, basement or workplace. We send two guitar teachers to lead a one-day course for you in the sty le of music you prefer, such as rock, country, funk or blues.

Time: 2:30 PM-9:00 PM

1.Those who atend Drawing For Fun are required to_____________.

A.bring their own works

B.be a newcomer to the course

C.be good at watercolour painting

D.bring their own pencils and paper

2.What's the purpose of Focus On Landscapes?

A.Paint outdoors.

B.Discuss the painting materials.

C.Improve the students painting techniques.

D.Teach how to start watercolour-painting.

3.Which course you can attend repeatedly?

A.Find Your Voice.

B.Drawing For Fun.

C.Focus On Landscapes.

D.The Music Takeaway.

4.Which allows you to decide where the course is held?

A.Find your Voice. B.Drawing For Fun.

C.The Music Takeaway. D.Focus On Landscapes.

5.What do the four courses have in common?

A.All last a whole day. B.All offer free lunch.

C.All are related to the arts. D.All are open to all levels.

高二英语阅读选择中等难度题查看答案及解析

Have you ever wondered why birds sing? Maybe you thought that they were just happy. After all, you probably sing or whistle when you are happy.

Some scientists believe that birds do sing some of the time just because they are happy. However, they sing most of the time for a very different reason. Their singing is actually a warning to other birds to stay out of their territory.

Do you know what a “territory” is? A territory is an area that an animal, usually the male, claims（声称）as its own. Only he and his family are welcome there. No other families of the same species are welcome. Your yard and house are your territory where only your family and friends are welcome. If a stranger should enter your territory and threaten you, you might shout. Probably this would be enough to frighten him away.

If so, you have actually scared the stranger away without having to fight him. A bird does the same thing. But he expects an outsider almost any time, especially at nesting（筑巢）season. So he is screaming all the time, whether he can see an outsider or not. This screaming is what we call a bird’s song, and it is usually enough to keep an outsider away.

Birds sing loudest in the spring when they are trying to attract a mate and warn others not to enter the territory of theirs.

You can see that birds have a language of their own. Most of it has to do with attracting mates and setting up territories.

1.Some scientists believe that most of the time birds’ singing is actually ______.

A. an expression of happiness　　 B. an expression of anger

C. a way of greeting　　 D. a way of warning

2.How does the writer explain birds’ singing?

A. By comparing birds with human beings.

B. By telling a bird’s story.

C. By reporting experiment results.

D. By describing birds’ daily life.

3.What is a bird’s “territory”?

A. An area for which birds fight against each other.

B. A place where a bird may shout at the top of its voice.

C. An area which a bird considers to be its own.

D. A place where families of other species are not accepted.

4.Why do birds keep on singing at nesting season?

A. Because they want to find outsiders around.

B. Because their singing helps frighten outsiders away.

C. Because they want to invite more friends.

D. Because their singing helps get rid of their fears.

高二英语阅读理解中等难度题查看答案及解析

Have you ever wondered why birds sing? Maybe you thought that they were just happy．After all，you probably sing or whistle when you are happy．

Some scientists believe that birds do sing some of the time just because they are happy．However，they sing most of the time for a very different reason．Their singing is actually a warning to other birds to stay out of their territory

Do you know what a “territory” is? A territory is an area that an animal，usually the male，claims(声称)as its own．Only he and his family are welcome there．No other families 0f the same species(物种)are welcome．Your yard and house are your territory where only your family and friends are welcome．If a stranger should enter your territory and threaten you，you might shout．Probably this would be enough to frighten him away．

If so，you have actually scared the stranger away without having to fight him．A bird does the same thing。But he expects an outsider almost any time，especially at nesting(筑巢) season．So he is screaming all the time，whether he can see an outsider or not This screaming is what we call a bird’s song，and it is usually enough to keep an outsider away．

Birds sing loudest in the spring when they are trying to attract a mate and warn others not to enter the territory of theirs．

You can see that birds have a language all their own．Most of it has to do with attracting mates and setting up territories．

1.Some scientists believe that most of the time birds’ singing is actually．

A．an expression of happiness

B．a way of greeting

C．an expression of anger

D．a way of warning

2.What is a bird’s “territory”?

A．A place where families of other species are not accepted．

B．An area which a bird considers to be its own

C．an area for which birds fight against each other．

D．A place where a bird may shout at the top of its Voice．

3.Why do birds keep on singing at nesting season?

A．Because they want to invite more friends

B．Because their singing helps get rid of their fears．

C．Because they want to find outsiders around．

D．Because their singing helps frighten outsiders away．

高二英语阅读理解中等难度题查看答案及解析

Have you ever wondered why birds sing? Maybe you thought that they were just happy．After all，you probably sing or whistle when you are happy．

Some scientists believe that birds do sing some of the time just because they are happy．However，they sing most of the time for a very different reason．Their singing is actually a warning to other birds to stay out of their territory

Do you know what a“territory”is? A territory is an area that an animal，usually the male，claims(声称)as its own．Only he and his family are welcome there．No other families of the same species(物种)are welcome．Your yard and house are your territory where only your family and friends are welcome．If a stranger should enter your territory and threaten you，you might shout．Probably this would be enough to frighten him away．

If so，you have actually scared the stranger away without having to fight him．A bird does the same thing．But he expects an outsider almost any time，especially at nesting(筑巢) season．So he is screaming all the time，whether he can see an outsider or not . This screaming is what we call a bird’s song，and it is usually enough to keep an outsider away．

Birds sing loudest in the spring when they are trying to attract a mate and warn others not to enter the territory of theirs．

You can see that birds have a language all their own．Most of it has something to do with attracting mates and setting up territories．

1.Some scientists believe that most of the time birds’singing is actually　　 ．

A．a way of warning　　　　　　　　　　　 B．an expression of happiness

C．an expression of anger　　　　　　　　 D．a way of greeting

2.What is a bird’s“territory”?

A．A place where families of other species are not accepted．

B．An area which a bird considers to be its own．

C．An area for which birds fight against each other．

D．A place where a bird may shout at the top of its Voice．

3.Why do birds keep on singing at nesting season?

A．Because they want to invite more friends

B．Because they want to find outsiders around．

C．Because their singing helps frighten outsiders away．

D．Because their singing helps get rid of their fears．

4.How does the writer explain birds’ singing?

A．By comparing birds with human beings．

B．By reporting experiment results．

C．By describing birds’ daily fife．

D．By telling a bird's story．

高二英语阅读理解中等难度题查看答案及解析

Have you ever wondered why birds sing? Maybe you thought that they were just happy. After all, you probably sing or whistle when you are happy.

Some scientists believe that birds do sing some of the time just because they are happy. However they sing most of the time for a very different reason. Their singing is actually a warning to other birds to stay out of their territory.

Do you know what a “territory” is? A territory is an area that an animal, usually the male, claims as its own. Only he and his family are welcome there. No other families of the same species are welcome. Your yard and house are your territory where only your family and friends are welcome. If a stranger should enter your territory and threaten you, you might shout. Probably this would be enough to frighten him away.

If so, you have actually scared the stranger away without having to fight him. A bird does the same thing. But he expects an outsider almost any time, especially at nesting（筑巢）season. So he is screaming all the time, whether he can see an outsider or not. This screaming is what we call a bird’s song, and it is usually enough to keep an outsider away.

Birds sing loudest in the spring when they are trying to attract a mate and warn others not to enter the territory of theirs.

You can see that birds have a language of their own. Most of it has to do with attracting mates and setting up territories.

1.Some scientists believe that most of the time bird’s singing is actually________.

A. an expression of happiness　 　　 B. a way of warning

C. an expression of anger　 　　　　 D. a way of greeting

2.What does the underlined word “territory”　 mean?

A. A place where families of other species are not accepted

B. A place where a bird may shout at the top of its voice

C. An area for which birds fight against each other

D. An area which a bird considers to be its own

3.Why do birds keep on singing at nesting season?

A. Because they want to invite more friends

B. Because their singing helps frighten outsiders away

C. Because they want to find outsiders around

D. Because their singing helps get rid of their fears

4.How does the writer explain bird’s singing?

A. By comparing birds with human beings

B. By reporting experiment results

C. By describing birds’ daily life

D. By telling a bird’s story

高二英语阅读理解中等难度题查看答案及解析