题目内容

【题目】Your body, which has close relations with the food you eat, is the most important thing you own, so it needs proper treatment and proper nourishment(营养). The old saying “An_apple_a_day_keeps_the_doctor_away.” is not as silly as some people think. The body needs fruit and vegetables because they contain vitamin C. Many people take extra vitamins in pill form(丸剂), believing that these will make them healthy. But a good diet is made up of nourishing(有营养的) food and this gives all the vitamins you need. The body doesn't need or use extra vitamins, so why waste money on them?

In the modern western world, many people are too busy to bother about eating properly. They throw away the good habits and throw anything into their stomachs, eating hurriedly and carelessly. The list of illnesses caused or made worse by bad eating habits is frightening.

Chinese diet is generally considered to be the healthiest in the world. It contains balanced nutrients as well as fibers. It's not right to eat too full or take in too much fat, salt or sugar. Remember: Healthy diet combined with regular exercise is the recipe for a happy life.

1From the first sentence we know that ________.

A. all kinds of food you eat can be made into nourishment

B. your body is made up of the food you eat.

C. what you eat has great effect on your health

D. the more you eat, the better you will feel

2How do you understand the old saying underlined in the passage?

A. Eating apples regularly does good to our health.

B. Doctors are no longer necessary if we eat an apple every day.

C. The apple is the best among all kinds of fruits.

D. An apple is a good way to cure illnesses.

3In modern western countries, ________.

A. people don't want to pay more attention to their eating

B. lots of people's illnesses are caused or made worse by bad eating habits

C. people throw everything into their stomachs without digestion(消化)

D. people are only too busy to cook meals for themselves

4If we want to keep healthy, we should ________.

A. only eat an apple a day

B. have balanced food and work out regularly

C. take as many vitamin pills as possible

D. throw everything into our stomachs slowly and carefully

【答案】

1C

2A

3B

4B

【解析】文章讲述了饮食习惯对健康的重要影响。

1细节理解题。从首句中的定语从句“which has close relations with the food you eat”可知选C。

2细节理解题。根据下句The body needs fruit and vegetables because they contain vitamin C.身体需要水果和蔬菜因为他们含有维生素C。可知谚语的意思是吃苹果对身体有好处,故选A。

3细节理解题。根据第二段最后一句The list of illnesses caused or made worse by bad eating habits is frightening.由坏的饮食习惯导致或者变糟的一系列疾病是令人恐惧的。可知很多人的疾病是由坏的饮食习惯导致或者变糟糕的”,故选B。

4细节理解题根据文章最后一句Remember: Healthy diet combined with regular exercise is the recipe for a happy life.记住:健康饮食加上有规律地锻炼是快乐生活的秘诀可知“如果我们想要保持健康,应该平衡膳食并有规律地锻炼。故选B。

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【题目】A new smart phone system under development can locate you even when you’re inside a building, which GPS can't do. While the concept sounds powerful, it’s not yet clear how practical it might be.

The set-up, called SurroundSense, sends information from cameras and microphones—gear in the latest smart phones—to a server that produces a fingerprint of the location.

“You can’t tell much from any of the measurements individually, but when combined, the optical (光学的), acoustic (声学的) and motion information creates a unique fingerprint of the space,” said Ionut Constandache, a student in computer science.

The system distinguishes between two indoor spaces in this manner: It knows that a bar is likely to be dark and noisy and people move little, sit a lot, whereas a department store will be brightly lit, contain vibrant colors, and will see a lot of people moving up and down passages. The more the system is used, the more it learns about specific places.

More work is needed before the set-up would be ready for prime time, however. For now, it can’t work if a person’s cellphone is in a handbag or otherwise unable to employ the camera. Finally it would be best served if paired with phones that were worn on the wrist or hung around the neck. Batteries, too, are a problem.

Students on the research team went out across Durham, North Carolina, with their cellphones collecting data in different types of businesses. The students mirrored the actions of the selected customers so that they would not prejudice the measurements.

“We went to 51 different stores and found that SurroundSense achieved an average accuracy (精确性) of about 87 percent," Constandache said.

“As the system collects and analyzes more and more information about a particular site, the fingerprint becomes more precise,” said Romit Roy Choudhury, professor of computer engineering. “Not only is the ambience different at different locations, but also can be different at different time at the same location.”

【1】We can infer from the first paragraph that GPS .

A. can find you wherever you are

B. can make too much loud noise

C. can only find outside things

D. isn’t really practical yet

【2】Why did students mirror the actions of the selected customers?

A. To get a reasonable result.

B. To collect data in different ways.

C. To receive information about a particular site.

D. To learn more about specific places.

【3】The underlined word “ambience” in the last paragraph may mean .

A. the fingerprint of the location

B. the character of a place

C. the existence of people

D. the area of store

【4】The main idea of the passage is about .

A. comparing GPS with a smart cellphone

B. the development of cellphones

C. a cellphone knowing where you are

D. what kind of future cellphones face

【题目】Taxi-sharing could have a good effect on car numbers.

Taxi-sharing services could reduce the number of cars on the road by 75%,a study has suggested.The Massachusetts Institute of Technology (MIT) study found that a number of 3,000 four-passenger taxis could take the place of the present number of 13,000 yellow taxis in New York City.But it would mean that people would have to travel with strangers.The study was based on data from 3 million taxi rides.

Most experts who are looking at our city future agree that there is a real need to do something about the heavy traffic.Studies suggest that around the world people waste 7 billion hours each year sitting in traffic.And the effects on the environment are also severe-with cars in traffic burning 3 billion more gallons of gas.

Prof Daniela Rus from MIT's Computer Science and Artificial Intelligence Lab writes,"Instead of taking one person at a time,drivers could transport two to four people at once,leading to fewer trips in less time to make the same amount of money."The team developed a math method that could arrange cars based on real-time requests."A system like this could allow drivers to work shorter time,while also creating less traffic,cleaner air and less stressful rush hour,"said Prof Rus.Such a system would be particularly suitable for smart cars controlled by computer systems, she added.

1What's the shortcoming of sharing a taxi?

A. Passengers have to wait longer.

B. Passengers have to face strangers.

C. Passengers have to talk more.

D. Passengers have to pay more.

2What is the main cause that leads to taxi-sharing?

A. The busy people. B. The serious pollution.

C. The heavy traffic. D. The gas shortage.

3According to Prof Daniela Rus,who can also benefit from taxi-sharing?

A. The gas companies. B. The math experts.

C. The car producers. D. The taxi drivers.

4The taxi-sharing trips had better to be carried out by .

A. cars controlled by computer systems

B. cars driven by the latest robots

C. the Science and Artificial Intelligence Lab

D. the Massachusetts Institute of Technology

【题目】Food serves as a form of communication in two basic ways. Sharing bread or other foods is a common human tradition that can promote unity and trust. Food can also have a special meaning, and play an important role in a family or culture’s celebrations or traditions. The foods we eat—and when and how we eat them—are often unique to a particular culture or may even differ between rural(郊区的) and urban(市区的) areas within one country.

Sharing bread, whether during a special occasion(时刻) or at the family dinner table, is a common symbol of togetherness. Many cultures also celebrate birthdays and marriages with cakes that are cut and shared among the guests. Early forms of cake were simply a kind of bread, so this tradition has its roots in the custom of sharing bread.

Food also plays an important role in many New Year celebrations. In the southern United States, pieces of corn bread stand for blocks of gold for prosperity(兴旺) in the New Year. In Greece, people share a special cake called vasilopita. A coin is put into the cake, which signifies(预示) success in the New Year for the person who receives it.

Many cultures have ceremonies to celebrate the birth of a child, and food can play a significant role. In China, when a baby is one month old, families name and welcome their child in a celebration that includes giving red-colored eggs to guests. In many cultures, round foods such as grapes, bread, and moon cakes are eaten at welcome celebrations to represent family unity.

Nutrition(营养) is necessary for life, so it is not surprising that food is such an important part of different cultures around the world.

1According to the passage, sharing food _______.

A. indicates a lack of food.

B. has its roots in birthday celebration.

C. is a custom unique to rural areas.

D. can help to develop unity and trust.

2What does the coin in vasilopita signify for its receiver in the New Year?

A. Success B. Trust

C. Health D. Togetherness

3The author explains the role of food in celebrations by _______.

A. making comparisons B. analyzing causes

C. using examples D. describing processes

4What is the passage mainly about?

A. The custom of sharing food.

B. The importance of food in different cultures.

C. The specific meaning of food.

D. The role of food in ceremonies.

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