根据材料内容选择最佳答案。Thingschoolbagpen-优题课

DNA is the whole “map” of the human body. It is something that all humans have, and it tells the body what to do. DNA is the reason that we look like our parents, because we get some of their DNA to make our own.
People have been trying to understand the human body for a long time. In 1860, Mr. Mendel discovered why we look the same as other people in our family. It is because of small things called “genes”（基因）in our body. In 1953, two scientists, Watson and Crick, found out that genes are really messages. They’re written in the DNA with a special language.
In 1961, another two scientists found the first “word” that they could understand in that language. It shows how DNA tells the cell (细胞）to build its parts. So far, scientists have found all the words in the DNA map, but we still don’t understand what they all do. By understanding what just one “word” means, we can help to save people from several illnesses. So the more we understand, the more doctors will be able to do.
Most people hope that this will help to make better medicine and help sick people. Other people worry that when we learn more “words” and find out more information, we will use it in the wrong way. Just to make people more attractive (有吸引力的), or stop sick people getting jobs.
When did Mr. Mendel discover why we look the same as other people in our family?

A．In 1680.

B．In 1860.

C．In 1953.

D．In 1961.

Watson and Crick found ______ in 1953.

A．all the words in the DNA map

B．small things called “genes” in our body

C．the first “word” they could understand in that language

D．genes are written in the DNA with a special language

How can we help sick people if we understand more “words” in the DNA map?

A．Make better medicine.	B．Make them get jobs.
C．Make maps for them.	D．Make them attractive.

Which one is NOT true according to the passage?

A．We look like our parents because of “genes” in our body.

B．We have understood what all the words in the DNA map do.

C．Scientists have found all the words in the DNA map.

D．DNA tells the cell to build its parts.

What do people think about this research about DNA?

A．It can be only bad.

B．It can be only good.

C．It can be good but won’t work.

D．It can be good or bad.

Living in a foreign culture can be exciting, but it can also be confusing(令人迷惑的). Some Americans who taught English in other countries recently talked about their experiences.
On her first day in Micronesia(密克罗尼西亚), an island in the Pacific, Lisa thought people weren’t paying any attention to her. It was hot. She went into a store and asked, “Do you have cold drinks? ” The woman there said nothing. Lisa repeated the question. Still the woman said nothing. She later learned that the woman had answered her: She had raised her eyebrows(眉毛), which in Micronesia means “yes”.
Jane remembered an experience she had in Bulgaria(保加利亚), a country in Europe. She went to a restaurant. She asked the waiter, “Do you have cabbage today?” He nodded his head. Jane waited, but the cabbage never came. In that country, a nod means “no”.
Tom had a similar problem when he arrived in India. After explaining something in class, he asked his students if they understood. Some nod and others shake. He thought some students had not understood, so he explained again. When he asked again, they did the same thing. He soon knew that his students did understand. In India, people nod and shake their heads in different ways depending on where they come from. You have to know where a person is from to understand whether they mean “yes” or “no”.
These Americans in the passage found that they__________ .

A．should go abroad for vacations

B．needed to learn foreign languages

C．should often discuss their experiences

D．had problems with communication in other countries

People in Micronesia show “yes” by ________ .

A．nodding heads

B．raising eyebrows

C．shaking heads

D．saying “no”

Tom misunderstood（误解）his class at first because_______ .

A．he didn’t know much about Indian culture

B．he didn’t explain everything clearly enough

C．some students didn’t speak English

D．he didn’t know where the students came from

Which of the following is TRUE?

A．In Bulgaria, nodding heads means “no”.

B．Jane taught English on a Pacific island.

C．Lisa was trying to buy some cabbage.

D．In India, only shaking heads means “yes”.

The passage is mainly about_________ .

A．body language in foreign restaurants

B．class discussion in Indian schools

C．different language cultures in different countries

D．English teaching in other countries

What might the future be like? Here are some predictions(预言).
Returning home during the Spring Festival is difficult for many Chinese people. More than 2 billion people travel at the same time, making buying travel tickets and the journey difficult. But 28 years later, Spring Festival travel may not be a problem at all. China plans to build more railways and a fast transportation network that will serve 90% of the population by 2020. And because most of China will be cities, people will not have to go to other places to find a job, so it will no longer be a problem.
Oil is running out faster than expected. But scientists have found something else for oil as fuel(燃料). Coal, natural gas, sun power, nuclear power(核能) and even water can take the place of oil as energy.
Schools will go electronic. Computers will be important and popular among the students. Everything will be in the computer and students will not need to bring books to school. They will find information on the Internet. A computer will be the students’ library, schoolbag and connection to the outside world. There will be robot teachers, they will check homework on computers and communicate with the students’ parents through e-mail. And school buses will be like spaceships, comfortable and safe.
More than 2 billion people have a hard time returning home during according to the passage.

A．Christmas Day

B．National Day

C．the Spring Festival

D．the Mid-autumn Festival

In 2020, China will build a fast transportation network that will serve of the population.

A．60%

B．70%

C．80%

D．90%

is not mentioned in the passage as energy.

A．Coal

B．Wind

C．Nuclear power

D．Water

From the passage we can know in the future.

A．the Spring Festival travel may still be a problem in China

B．90% of the population will live in the city

C．robot teachers will check students’ homework

D．readers can discuss topics with each other face to face

What’s the main idea of the last paragraph?

A．Schools will go electronic.

B．Computers will be important.

C．There will be robot teachers.

D．School buses will be like spaceships.

The Vieira family moved to the United States in 1981. At that time, they decided to stop speaking Spanish at home and only communicate in English. This was because they were now living in an English－speaking country.
Now the Vieira children are adults, and they sometimes travel to Spain to visit their family and friends. But they cannot communicate with them. Unfortunately this is common. When people move to new countries, they often leave their own customs and mother language behind. This is－a mistake because there are many benefits to knowing more than one language.
One advantage of speaking more than one language is that you can communicate directly with more people around the world. You do not have to depend on others to talk for you, so you're more independent. People who know only one language must use others to help them communicate.
Furthermore, speaking a second language also allows people to experience other cultures and customs more effectively. Local expressions, vocabulary, and even jokes can have a powerful effect on a person's understanding of another culture. So, knowing more than one language increases your knowledge of other cultures.
Finally, having more multi－language speakers improves relationships between countries. If people from different countries can communicate well, the world can become closer. Countries will then have more respect for each other and better understand each other's problems.
The benefits of knowing more than one language are clear. In fact, there are no disadvantages. It is very sad that many people don't try to learn another language. It is even worse when people let themselves forget their mother language and become silenced.
What is the passage mainly about?

A．The benefits of learning other languages.

B．The reasons why people come to America.

C．The importance of learning English.

D．How to learn another language.

The passage begins with the experience of the Vieira family in order to

A．discuss the need for teaching a new language

B．introduce the passage's main characters to the readers

C．describe the advantages of moving to another country

D．show the problems of speaking only one language

The underlined phrase "multi－language speakers" (Paragraph 5) means "people who know ."

A．their mother language	B．a new language
C．more than one language	D．body language

According to the last paragraph, which of the following is the worst?

A．Not knowing another language.

B．Forgetting one's mother language,

C．Refusing to learn another language

D．Failing to communicate with others.

The human brain weighs about 1.4 kilograms, but it can hold much more information than most computers. However, there is another difference between humans and computers. Computers don't forget information they are given, but humans often do. No one remembers everything, and luckily we don't usually have to. But everyone can improve their memory if they want to. Here are some suggestions.
◆Try to use new information immediately. For example, if you meet someone who says "Hi! I'm Carlos," don't just say "Hello." Repeat the person's name. Say ""
◆Break a big number into smaller parts. For example, it's hard to memorize (记忆) 109244153. But if you break it into three parts—109/244/153—it becomes easier.
◆Write out what you need to remember over and over again. This will help you keep it in mind longer, especially for memorizing formulas (公式) or facts.
◆Always review information. If you bring what you've learned back to your mind, they become easier to remember. For example, before you go to sleep, it's a good idea to review the new things you learned that day.
◆Discuss with a friend. It is always easier to remember things through discussions. You can have a discussion about what's right and what's wrong, and it will lead to the right answer.
◆Never tell yourself that you have a bad memory. You can always do something to help improve your memory. And everyone's memory gets better if they use it often enough.
All of the suggestions are helpful. If you follow them, you are certain to improve your memory.
Which should be put in the blank (空格)in Paragraph 2 ?

A．Hello, Carlos.	B．How do you do?
C．Hello, I am Sophia.	D．Glad to meet you!

What can help memorize a big number more easily according to the passage?

A．To store it in a computer.

B．To break it into smaller parts.

C．To discuss it with a friend.

D．To review it before you sleep.

Which of the following is true according to the passage?

A．Discussing with friends can help you remember things.

B．Always reviewing information can help you fall asleep.

C．Formulas and facts can help you learn about your brain.

D．Human beings can improve their memory by computer.

What does the sentence "Never tell yourself that you have a bad memory" mean?

A．You should tell others about your bad memory.

B．You should believe in other people all the time.

C．You should ask others to improve their memory.

D．You should have confident in your memory ability.

Thing	schoolbag	pen	key	jacket	watch
Color	blue	red	black	purple	yellow
Location	on the desk	on the table	on the chair	on the sofa	on the sofa
Owner (物主)	Jim	Jane	Jim	Jim	John