It is universally that dogs have a good sense...

It is universally         that dogs have a good sense of smell.

高二英语单项填空简单题查看答案及解析

Sharks use their good sense of smell to search for prey（猎物）. But a new study shows that the rising levels of carbon dioxide in the ocean could reduce sharks' ability to find food. It's bad news for a healthy ocean. Sharks are top predators（掠食动物）and are like the ocean's weed controllers.

Dixson works at the Woods Hole Oceanographic Institution in Massachusetts. Her earlier work has shown that clown fish in acidifying（酸化的）water act strangely. "We want to expand this research to sharks .because we know how important it is for sharks to find their food through their sense of smell," said Dixson.

Her team started by placing sharks in each of three different pools for five days. Each pool had a different level of carbon dioxide in it. The first had the same amount as today's ocean water. The second had a level of carbon dioxide that scientists expect to reach by 2050. The third pool had the highest level of carbon dioxide that could develop by the year 2100.

Sharks weren't allowed to eat any food while in the pools. This made sure that they would be hungry. Then, Dixson released the sharks one at a time into a pool with two side-by-side streams of flowing water. In one stream, the researchers pumped water, in which a dead squid had been overnight. This water smelled strongly of the squid. The other stream contained ocean water with no scent（气味）. Because each stream flowed at the same rate and in the same direction, the squid smell stayed in its stream. The sharks could choose to swim in either stream.

Sharks that had been swimming for five days in pools of regular ocean water spent more than 60 percent of their time in the squid-scented stream. The same was true for sharks that had been in water with the carbon dioxide level that could develop by the year 2050. But sharks exposed to the highest level of carbon dioxide spent just 15 percent of their time in the squid-scented stream.

1.Why did the writer mention the sharks smell at the beginning of the passage?

A. Because the writer appreciates their ability to find food.

B. Because the writer considers them dangerous to human beings.

C. Because the writer intends to show how to control weed in the ocean.

D. Because the writer worries about the sharks in the ocean.

2.What is Paragraph 3 mainly about?

A. What the ocean in the future will be like.

B. Who helped Dixson conduct the study.

C. What kinds of pools were used during the study.

D. What the levels of carbon dioxide will be at in the ocean in the future.

3.The researchers pumped water where a dead squid had been overnight to ______.

A. help the sharks look for food

B. test the sharks' sense of smell

C. prove that sharks like eating squids

D. explain why carbon dioxide in the ocean affects sharks

4.What does the underlined sentence in the last paragraph suggest?

A. Sharks like the squid-scented stream better.

B. Sharks like the stream with the high level of carbon dioxide.

C. Sharks spent 15% of their time in the squid-scented stream.

D. The high level of carbon dioxide can affect the sharks ability to smell.

高二英语阅读理解中等难度题查看答案及解析

You either have it, or you don’t — a sense of direction, that is．But why is it that some people could find their way across the Sahara without a map, while others can lose themselves in the next street?

Scientists say we’re all born with a sense of direction, but it is not properly understood how it works．One theory is that people with a good sense of direction have simply worked harder at developing it．Research being carried out at Liverpool University supports this idea and suggests that if we don’t use it, we 1ose it．

“Children as young as seven have the ability to find their way around, ’’ says Jim Martland, research director of the project．“However, if they are not allowed out alone or are taken everywhere by car, they never develop the skills．’’

Jim Martland also emphasizes that young people should be taught certain skills to improve their sense of direction．He makes the following suggestions：

1．If you are using a map, turn it so it relates to the way you are facing．

2．If you leave your bike in a strange place, put it near something like a big stone or a tree—something easy to recognize．Note landmarks on the route as you go away from your bike．When you return, go back along the same route．

3．Simplify the way for finding your direction by using lines such as streets in a town, streams, or walls in the countryside to guide you．Count your steps so that you know how far you have gone and note any landmarks such as tower blocks or hills which can help to find out where yon are．

Now you will never get lost again!

1.Scientists have the belief that__________．

A．some people have a sense of direction when they are born

B．a sense of direction is developed with ages

C．people have their sense of direction all their life

D．everybody has a sense of direction from birth

2.What is true about 7-year-old children according to the passage?

A．Their sense of direction does not work without maps．

B．They should be allowed indoors if they lack(缺乏)a sense of direction．

C．They have the ability to find their way around

D．They can develop a good sense of direction if they are driven around in a car．

3.If you leave your bike in a strange place, you should___________．

A．plant a tree beside the bike so that you can know where the bike is

B．on the map mark where the bike is

C．find the stone which is beside the bike

D．remember something easily recognizable on the route

4.According to the passage, the best way to find your way around is to___________．

A. take a bike as a landmark

B. use walls, streams, and streets to guide yourself

C. remember your route by asking a policeman for help

D. remember the number of landmarks that you see

高二英语阅读理解中等难度题查看答案及解析

You either have it , or you don’t –a sense of direction ,that is．But why is it that some people could find their way across the Sahara without a map ,while others can lose themselves in the next street?

Scientists say we’re all born with a sense of direction ,but it is not property understood how it works．One theory is that people with a good sense of direction have simply worked harder at developing it．Research being carried out at Liverpool University supports this idea and suggests that if we don’t use it．we lose it．

“Children as young as seven have the ability to find their way around．” says Jim Mart land．Research Director of the project．“However if they are not allowed out alone or are taken everywhere by car ,they never develop the skills”

Jim Mart land also emphasizes that young people should be taught certain skills to improve their sense of direction．He makes the following suggestions．

●If you are using a map ,turn it so it relates to the way you are facing．

●If you leave your bike in a strange place ,put it near something like a big stone or a tree．

Note landmarks on the route as you go away from your bike．When you return ,go back

along the same route

●Simplify the way of finding your direction by using lines such as streets in a town,

streams ,or walls in the countryside to guide you．Count your steps so that you know how

far you have gone and note any landmarks such as tower blocks or hills which can help to

find out where you are．

Now you need never get lost again!

1.Scientists believe that ________．

A．some babies are born with a sense of direction

B．people learn a sense of direction as they grow older

C．people never lose their sense of direction

D．everybody posses a sense of direction from birth

2.What is true of seven-year-old children according to the passage?

A．They never have a sense of direction without maps．

B．They should never be allowed out alone if they lack a sense of direction．

C．They have a sense of direction and can find their way around．

D．They can develop a good sense of direction if they are driven around in a car．

3.If you leave your bike in a strange place ,you should ________．

A．tie it to a tree so as to prevent it from being stolen

B．draw a map of the route to help remember where it is

C．avoid taking the same route when you come back in it

D．remember something easily recognizable on the route

4.According to the passage the best way to find your way around is to ________．

A．ask policemen for directions

B．use walls．streams , and streets to guide yourself．

C．remember your route by looking out for steps and stairs．

D．count the number of landmarks that you see．

高二英语阅读理解简单题查看答案及解析

You either have it , or you don’t –a sense of direction ,that is．But why is it that some people could find their way across the Sahara without a map ,while others can lose themselves in the next street?

Scientists say we’re all born with a sense of direction ,but it is not property understood how it works．One theory is that people with a good sense of direction have simply worked harder at developing it．Research being carried out at Liverpool University supports this idea and suggests that if we don’t use it．we lose it．

“Children as young as seven have the ability to find their way around．” says Jim Martland．Research Director of the project．“However if they are not allowed out alone or are taken everywhere by car ,they never develop the skills”

Jim Martland also emphasizes that young people should be taught certain skills to improve their sense of direction．He makes the following suggestions．

●If you are using a map ,turn it so it relates to the way you are facing．

●If you leave your bike in a strange place ,put it near something like a big stone or a tree．

Note landmarks on the route as you go away from your bike．When you return ,go back

along the same route

●Simplify the way of finding your direction by using lines such as streets in a town,

streams ,or walls in the countryside to guide you．Count your steps so that you know how

far you have gone and note any landmarks such as tower blocks or hills which can help to

find out where you are．

Now you need never get lost again!

60．Scientists believe that       ．

A．some babies are born with a sense of direction

B．people learn a sense of direction as they grow older

C．people never lose their sense of direction

D．everybody posses a sense of direction from birth

61．What is true of seven-year-old children according to the passage?

A．They never have a sense of direction without maps．

B．They should never be allowed out alone if they lack a sense of direction．

C．They have a sense of direction and can find their way around．

D．They can develop a good sense of direction if they are driven around in a car．

62．If you leave your bike in a strange place ,you should     ．

A．tie it to a tree so as to prevent it from being stolen

B．draw a map of the route to help remember where it is

C．avoid taking the same route when you come back in it

D．remember something easily recognizable on the route

63．According to the passage the best way to find your way around is to    ．

A．ask policemen for directions

B．use walls．streams , and streets to guide yourself．

C．remember your route by looking out for steps and stairs．

D．count the number of landmarks that you see．

高二英语阅读理解简单题查看答案及解析

Dogs have a very good____ of smell and are often used to search for survivors in an earthquake.

A. sense       B. manner     C. means     D. idea

高二英语单项填空中等难度题查看答案及解析

The dog has a(n) _______ sense of smell while the rabbit has a sharp sense of hearing.

A. acute　　　　　　 B. cautious

C. flexible　　 　 D. valid

高二英语单项填空中等难度题查看答案及解析

Guide Dogs of America, A History is the book that we all have been waiting for. It’s a book that tells how and where the guide dog movement really started, with information never before revealed--until now. After reading this 200-page, picture-filled work, you will know about every aspect of Guide Dogs of America(GDA) from its inception to how it has become one of the top guide dog schools in the country.

Joseph W. Jones, Sr., was refused a guide dog because of his age--he was fifty seven--but he would not accept defeat. He researched the guide dog movement and with the help of the International Association of Machinists and Aerospace Workers, established his own school, one that would provide guide dogs free of charge to visually impaired people regardless of their age.

The school graduated 18 guide dog teams the first year with students staying at, GDA’s first trainer, Lambert Kreimer’s house on South Virginia Avenue in Burbank, and Jones manning the office on Lankershim Boulevard in North Hollywood.

In 1952, Jones addressed the quadrennial(四周年纪念的) IAM Grand Lodge Convention in Kansas City, Missouri. “I sincerely prayed to God for two things,” Jones said. “After my wife passed away and left me with a ten-year-old boy, I prayed that I would be spared long enough to see this organization well established and that my ten-year-old boy would become a man. Both prayers have been answered. The organization is well established, it is in the hands of the IAM and my boy is a man, and I am proud to say that today he is a member of the IAM.”

Jones’ pray for a successful organization had been answered now, ten years after he was rejected for being too old, his dream of having a guide dog for himself, hundreds of others had already been given the gift of sight because of his drive and determination. That school, now known as Guide Dogs of America, has provided guide dogs to thousands of people free of charge.

1.What can we known about the book Guide Dogs of America, A History?

A. It only tells us where the guide dog movement started

B. There are no pictures in the book

C. It mainly deals with Guide Dogs of America

D. It was written by Lambert Kreimer

2.Why did Joesph W. Jones, Sr. fail to get a guide dog?

A. He couldn’t afford to buy one

B. He was too old to get one

C. There were not enough guide dogs

D. He didn’t know how to make use of a guide dog

3.According to the passage, Guide Dogs of America　　　 .

A. trained 18 guide dog teams in 1952

B. received much help from the guide dog movement

C. has provided guide dogs to thousands of affordable people

D. had Lambert Kreimer as its first trainer

4.The underlined sentence in the passage means “　　　 ”.

A. I prayed I could live long enough to set up a school to train guide dogs

B. I prayed I could have enough money to establish an organization

C. I prayed I could have a guide dog to help me realize my dream

D. I prayed I could have good health in the rest of my life

高二英语阅读理解中等难度题查看答案及解析

Find which Direction Is South

Do you have a good sense of direction？If not，please take with you a compass. But if you forget to take a compass , you can still find your way.

It's never a good idea to imagine that the family member who was entrusted(委托〕with the job of map reading actually knows where the family is. You can tell by the "slightly confused look on their face that nothing on the ground seems to match the map. Never mind. The sun is shining and it’s still morning. If you don't know the exact time，you can still find out where south is，but you'll need to be patient.

①Find a straight stick and put it in the ground in a place where you can mark its shadow.

②Try to position the stick as vertically(垂直)as you can. You can check this by making a simple plumb line（铅锤线）with a piece of string（绳子） and weigh. You haven't got any string? Ok, use a thread from your clothes with a button tied at the end to act as a weight.

③Mark the end of the shadow cast by the stick.

④Wait approximately half an hour and mark the end of the shadow again.

⑤Keep doing this until you have made several marks.

⑥The mark nearest the stick will represent the shortest shadow, which is cast at midday, when the sun is highest in the sky and pointing to the exact south.

⑦Pick a point in the distance along the line between the shortest shadow and the stick.

⑧That point is south of where you are.

⑨Now you can turn the map, like you did before, and find which way you should be traveling.

1.To find the direction, we ought to be patient probably because ________.

A. it is not easy to find a proper stick

B. it is not easy to position the stick

C. it takes hours to make the marks

D. it takes about half an hour to make the marks

2.The passage would probably be most helpful to ________.

A. those who draw maps

B. those who get lost

C. those who make compasses

D. those who do experiments

3.Which of the following pictures best shows the way of finding the direction of south?

4.The author presents this passage by ________.

A. telling an interesting story

B. describing an activity in a lively way

C. testing an idea by reasoning

D. introducing a practical method

高二英语阅读理解简单题查看答案及解析

Your suggestion is 　 worthless; on the contrary, it makes a good deal of sense to me.

A. far from　　 B. apart from　　 C. rather than　　 D. other than

高二英语单项填空中等难度题查看答案及解析