题目内容

The audience _______ as they waited for the comedian to come on the stage.

A. fell silence B. fell silent

C. fall silently D. feel silent

练习册系列答案
相关题目

语法填空：

阅读下面材料，在空白处填入适当的内容（不多于3个单词）或括号内单词的正确形式。

Many of us were raised with the saying “Waste not, want not.” None of us, however, can 1. (complete) avoid waste in our lives.

Any kind of waste is thoughtless. Whether we waste our potential talents, our own time, our limited 2. (nature) resource, our money, 3. other people’s time, each of us can become more aware and careful. The smallest good habits can make a big 4. (differ). It’s a good feeling to know in our hearts we are doing our best in a world 5. is in serious trouble. By being devoted to 6. (save) oil, water, paper, food, and clothing, we are playing 7.part in cutting down on waste.

We must keep reminding 8. (we)that it is easier to get into something than it is to get out of it. Actually, severe damage 9. (do) to our land is fairly recent in the history of our evolution. It’s time for us to say no to waste so that our grandchildren’s children 10. (be)able to develop well. We can’t solve all the problems of waste, but we can encourage mindfulness.

Picture the scene: You come home after work feeling too exhausted to cook –only to find a delicious meal worthy of a Michelin-starred restaurant waiting for you. It sounds like a fantasy, but it could be about to come true thanks to a robot chef developed by British scientists.

Those scientists have come up with a set of robotic arms so smart that they are capable of cooking meals all by themselves. The device will be sold from as early as 2017 as part of a purpose-built high-tech kitchen.

Scientists at Moley Robotics spent almost 18 years developing the hands. According to its creators, the arms can chop, stir, whisk and baste well enough to recreate almost anything you would care to eat, whether it is a simple home-cooked supper, or a complicated creation designed by a world-class chef. The hands move a little slowly, hovering strangely above the work surface whenever they are not busy, but they imitate human movements closely enough that they can do things such as wiping a spoon on the edge of a pan to prevent drips.

Mr Oleynik, who is leading the project, said, “All the things which are possible with the hand are possible here. There is no limitation. A lot of people want to go to Michelin-starred restaurants, but they are quite expensive and may be quite far from the home. This is an opportunity for people to enjoy very good food, and for a reasonable price. ”

The only cuisine that is off the robot’s menu at the moment is sushi, which requires extremely steady pressure and nimble fingers to make, but the team plan to conquer that as well by the time it goes on sale.

1.People go to Michelin-starred restaurants in order to______.

A. appreciate car tires. B. enjoy delicious meals

C. see the new robot chefs D. escape from work

2. What does the underlined word “they” in Paragraph 2 refer to?

A. British scientists B. The robot chef’s arms

C. Cooks at restaurants D. Household wives

3.Which kind of food CAN’T the robot chef cook at present?

A. Bread B. Beef C. Sushi D. Sandwich

4.What can we infer from the passage?

A. Hands of a robot chef can perform exactly like a cook.

B. Robot chefs are available at shopping malls.

C. Michelin-starred restaurants are suitable for many people.

D. It is uncertain when the robot can cook all kinds of food.

People have the belief ______ factories should produce fewer things from raw materials, ______ the supply is growing smaller and smaller.

A. which; that B. that; of which

C. that; whose D. which; whose

I rushed for the door , fell _______ the cat in the hallway and a tooth fell ________.

A. over, out B. over, off

C. down, down D. down, out

Ronald Hoffman born in 1937 is Polish-born American organic chemist and Nobel laureate(桂冠). As a theoretical chemist, Hoffmann studied energy levels in chemical bonds during chemical reactions. He put computers to use to solve his problems and, despite the complexity of his research, was able to explain his theories and discoveries to the non-specialist. For his work he was awarded the 1981 Nobel Prize in chemistry, which he shared with Fukui Kenichi.

Born in Poland, Hoffmann settled in New York City as a child and became a United States citizen. He received his undergraduate degree in premedical studies from Columbia College in 1958. He attended Harvard University, where he received his PhD. degree in chemical physics in 1962. He joined the faculty of Cornell University in the mid-1960s and remained there throughout his career.

Hoffmann and Nobel laureate chemist Robert Burns Woodward developed rules, based on quantum mechanics, to determine how energy levels in atomic electron orbits influence how a chemical reaction takes place. These simple rules, known as the Woodward-Hoffmann rules, allowed chemists to predict reaction results and was quickly accepted and put to use in a wide variety of situations.

Hoffmann later turned his research to a variety of problems related to discovering the molecular structure of inorganic and organometallic compounds. Hoffmann is also known for what is called the Isolobal Analogy, which is yet another discovery linking all areas of chemistry. It is useful in predicting the behavior of new molecules based on the orbit structure of the components used to form them.

Aided by computers, Hoffmann was able to generate a vast amount of data to support his ideas. Unlike the scientific papers of many chemists, Hoffmann's publications contain little raw data but instead are filled with diagrams and pictures to explain his results. His drawings of shaded balloons to indicate eigenvectors, a unit used in mathematics, are now the accepted scientific notation for illustrating this value.

1.What can be inferred from the above passage about Hoffman?

A. He left his homeland when he got the Nobel Prize.

B. He went to the United States to gain his Nobel Prize.

C. He might find the Unites States a better place to learn chemistry.

D. His family may have settled in the United States.

2.How did Hoffman make his research popular?

A. He applied some computer skills to help explain his ideas.

B. He established a special computer system to help.

C. He drew some forms explaining his ideas.

D. He did series of experiments to prove his ideas.

3.The underlined word “generate” in this passage might most probably mean “______”.

A. bring in B. break down

B. move away D. keep secret

4.Why was Ronald Hoffman awarded the 1981 Nobel Prize for chemistry?

A. He established rules to predict chemical reactions .

B. He succeeded applying computer science to chemistry research.

C. He shared what he had achieved with another scientist named Fukui Kenichi.

D. He succeeded in both chemistry and computer researches.

Jean is a bright young lady who comes from a rich and famous family. She goes to a good university and has everything that money can buy. Well, almost everything. The problem is that the people in Jean's family are so busy that they can hardly find time to be with her. So Jean spends a lot of time on her QQ. She likes being anonymous (匿名), talking to people who do not know about her famous family and her rich life. She uses the name Linda on QQ and has made a lot of friends who she keeps in touch with quite often.

Last year Jean made a very special friend on QQ. His name was David and lived in San Francisco. David was full of stories and jokes. He and Jean had a common interest in rock music and modern dance. So it always took them hours to talk happily on QQ and sometimes they even forgot their time. Of course, they wanted to know more about each other. David sent her a picture of himself: He was a tall, good-looking young man with a big happy smile. As time went by, they became good friends and often sent cards and small things to each other.

When Jean's father told her that he was going on a business trip to San Francisco, she asked him to let her go with him so that she could give David a surprise for his birthday. She would take him the latest DVD of their favorite rock singer. But when she knocked on David's door in San Francisco, she found that her special friend was only a ten-year-old boy named Jim!

1.Jean spends a lot of her time on QQ because she is .

A. rich B. young C. lonely D. talkative

2.The following states are true about Jean EXCEPT that according to the passage.

A. she is a university student

B. she was born in a wealthy family

C. she made a friend named Jim younger than her

D. she uses her family name on her QQ

3.We could believe that Jean was when seeing Jim himself instead of David on QQ at the door.

A. delighted B. disappointed

C. regretful D. confused

Tu Youyou won Nobel Prize in Medicine for her discoveries that helped doctors fight malaria and _______ caused by roundworm parasites.

A. injections B. infections

C. prescriptions D. presentations

Here is some must?know information from a handbook on how people behave in doing business in some countries.

In Brazil

Brazilians are warm and friendly. They often stand close when talking and it is common for them to touch the person on the shoulder. People often greet each other (particularly women) with light cheek kisses. Schedules tend to be flexible，with business meetings sometimes starting later than planned. But to be safe，be on time. Meals can stretch for hours—there’s no such thing as rushing a meal in Brazil. Lunches also can start in the mid to late afternoon. Brazilians are social，preferring face?to?face communication over emails or phone calls.

In Singapore

Singaporeans shake hands when they meet and often also greet each other with a small，polite bow. Business cards should be offered and received with two hands. Arriving late is considered disrespectful. So be on time. Efficiency(效率) is the goal，so meetings and dealings often are fast?paced. Singaporeans are direct in their discussions，even when the subject is about money. Rank is important and authority is respected. This determines how people interact in meetings. For example，people avoid disagreeing outright with someone of a higher rank.

In the United Arab Emirates

In the UAE，status is important，so the most senior or oldest should be greeted first with their titles. The handshake seems to be longer than elsewhere. So do not pull away from the handshake. Women should cover themselves when it comes to dress. Men also tend to be covered from neck to elbows(肘部) and down to the knees. People do not avoid entertaining in their homes，but they also hold business meals at restaurants. Touching or passing food or eating with your left hand is to be avoided. When meetings are one?to?one，if your host offers you coffee，you should refuse. It might seem odd，but it is a cultural tradition. Coffee should only be accepted if it is already set out or presented.

In Switzerland

The Swiss tend to be formal and address each other by last name. They also are respectful of private lives. You should be careful not to ask about personal topics. Punctuality(守时) is vital，something that comes from a deep respect for others’ time. Arrive at any meeting or event a few minutes early to be safe. They also have clear structure in their companies. Higher?ups make the final decisions，even if others might disagree. Neat，clean dress is expected. The Swiss follow formal table manners. They also keep their hands visible at the table and their elbows off the table. It is polite to finish the food on your plate.

1.The passage is mainly about___________

A． communication types

B． the workplace atmosphere

C． customs and social manners

D． living conditions and standards

2.Why do Singaporeans avoid arguing with their boss?

A． They put efficiency in the first place.

B． They dislike face?to?face communication.

C． They want to finish meetings as quickly as possible.

D． They are supposed to obey the person of a higher rank.

3.In the UAE，when should you refuse the coffee if it is offered?

A． When greeting seniors.

B． When meeting the host alone.

C． When attending a presentation.

D． When dining with business partners.

4.In which country do people care about where to put their hands at the dinner table?

A． In Brazil.

B． In Singapore.

C． In the United Arab Emirates.

D． In Switzerland.

违法和不良信息举报电话：027-86699610 举报邮箱：58377363@163.com

精英家教网