Her pronunciation is as good as, if than, her teacher's.? A. no better B. not better C. no good D. not good? 题目和参考答案——青夏教育精英家教网—

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Her pronunciation is as good as, if ____than, her teacher's.?

　　A. no better B. not better C. no good D. not good?

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How Much to Tip

You’re out to dinner . The food is delicious and the service is fine . You decide to leave a big fat tip . Why ? The answer may not be as simple as you think .Tipping , psychologists have found , is not just about service . Instead , studies have shown that tipping can be affected by psychological reactions to a series of different factors from the waiter’s choice of words , to how they carry themselves while taking orders , to the bill’s total . Even how much waiters remind customers of themselves can determine how much change they pocket by the end of the night .“Studies before have shown that mimicry brings into positive feelings for the mimicker ,”wrote Rick van Baaren , a social psychology professor . “ There studies show that people who are being mimicked become more generous toward the person who mimics thorn .”

So Rick van Baaren divided 59 waiters into two groups . He requested that half serve with a phrase such as “ Coming up ! ” Those in the other half were instructed to repeat to orders and preferences back to the customers . Rick van Baaren then compared their take home . The results were clear－it plays to mimic your customers . The copycat waiters earned almost double the amount of tips to the other group .

Leonard Green and Joe Myerson , psychologists at Washington University in St . Louis found the generosity of a tipper may be limited by his bill . After research on the 1,000 tips left for waiters , cab drivers , hair stylists , they found tip percentages in these three areas dropped as customers’bills went up . In fact , tip percentages appear to plateau when bills topped ＄100 and a bill for ＄200 made the worker gain no bigger percentage tip than a hill for ＄100 .

“That’s also a point of tipping ,” Green says . “ You have to give a little extra to the cab driver for being there to pack you up and something to the waiter for being there to serve you . If they weren’t there you’d never get any service . So part of the idea of a tip is for just being there .”

1.How many factors affecting the customers’ tipping are mentioned in the passage ?

A.1 B.2 C.3 D.4

2.These studies show that ______.

A.tipping can be affected by physical reactions to many different waiter’s factors

B.people who are being mimicked usually tip less to the person who mimics them

C.the mimic waiters can get almost twice as much money as the other group

D.mimicry makes the mimicker feel bad

3.According to the passage , which of the following will be likely to show the right change of the tip percentages ?

4.We know from the passage that the writer seems to ______.

A.object to Mr Green’s idea about tipping

B.think part of Mr Green’s explanation is reasonable

C.give his generous tip to waiters very often

D.support the opinions of Mr Green and Rick van Baaren about tipping

When an ant dies, other ants take it out of the nest, often within an hour after its death. This behavior interests scientists and they wonder how ants know for sure — and so soon — that another ant is dead.

One scientist recently came up with a way to explain this ant behaviour. Dong-Hwan Choe is a biologist, a scientist who studies animals and plants. He found that ants have a chemical on the outside of their bodies that signals to other ants, “I'm dead—take me away” when it is dead.

But there's a question to answer: As we know, if an ant is dead, it stops moving. But when an ant is sleeping or knocked unconscious, it is also not moving. However, other ants don't move the living ant out of the nest. How do they know this ant is not dead? Choe found that ants have another chemical on their bodies, which tells nearby ants something like, “Wait—I'm not dead yet”when it is not dead. Choe suspects that when an ant dies, the chemical that says, “Wait I'm not dead yet”quickly goes away. When other ants detect the“dead”chemical without the“not dead yet”chemical, they move away the body.

To test his theory , Choe and his team put different chemicals on ants. When the scientists used the “I'm dead” chemical, other ants quickly moved the treated ant away. When the scientists used the“Wait—I'm not dead yet”chemical, other ants left the treated ant alone. Choe believes this behavior shows that the“not dead yet”chemical overrides the“dead” chemical when picked up by other ants. And that when an ant dies, the “not dead yet” chemical fades away. Other nearby ants then detect the remaining“dead”chemical and remove the body from the nest.[

Understanding this behavior can help scientists figure out how to stop ants from invading new places and causing problems.

1. What is the function of the first paragraph?

A. Leading the following paragraphs. B. Showing the main idea of the passage.

C. Introducing the background of the passage. D. Giving a summary of the passage.

2. Which of the following has the closest meaning to the underlined word “overrides” in the fourth paragraph?

A.is weaker than B. is stronger than C. is better than D. is worse than

3. What can we learn from the passage?

A. Living ants can also be taken away when they are not moving.

B. When an ant dies, it can tell others using a certain chemical.

C. A living ant can pretend to be dead using a special chemical.

D. Ants often use chemicals to communicate with each other.

4. Which of the following descriptions about Dong-Hwan Choe is right?

A. Choe did this study in order to stop ants from invading new places.

B. Choe is a biologist who is only interested in animals, especially in ants.

C. Choe first came up with an idea to explain this ant behavior，and then did some tests to prove his theory.

D. Choe did the research on this ant behavior on his own

Schedules, as the 21st century people know, simply did not exist in the 17th and 18th centuries. We are upset if a plane arrives an hour late. Our ancestors weren’t upset if an April ship didn’t show up until June. They began to worry in July and were often happy when it showed up in August. When a long-distance ship finally did get to the port, the whole city became busy and excited. Businessmen hurried down to check the goods they had ordered. The ship would probably stay in port for at least three days, often a week, to take on businessmen, give the sailors a rest, find out about the latest news, weather conditions, and so on.

Travel time could only be approximate. One never knew when the winds would be good. So even though “average sailing time” was given, time could change considerably, shortening the voyage by up to 25% or putting it off by up to 500% or more! The average run from England to Boston was about a month and a half, but there were also voyages of three months. One voyage in 1640 lasted six months!

Travel time is not the same in both directions, due to the winds and currents. This is especially true in the Caribbean, where winds are from the southeast the entire year. Ships sailing west across the Atlantic spend longer than ships sailing east, and the contrary winds can prevent a ship from actually making it to the harbor even if it gets close. One ship was held off the North Carolina coast for 17 days before being able to land!

1. What can we learn from the first paragraph?

A. No sailor was allowed to have fun when the ship reached land.

B. People in ancient times didn’t care about other people’s safety.

C. The ship would leave for a voyage when all of the preparations were made.

D. A long-distance ship would create a lot of excitement in the place where it landed.

2. According to the passage, travel time can’t be fixed due to ___________ .

A. the people at the port B. average sailing time

C. the changeable climate D. the businessmen and the sailors

3. The underlined word “currents” in the third paragraph means __________ .

A. the movement of water B. the movement of winds

C. direction of the traveling ship D. travel time of ships

I suggested the person______to be put into prison.

A.refers B.referring C.referred D.refer

He accidentally he had quarreled with his wife and that he hadn't been home for a couple of weeks.

A. let out B. took care C. made sure D. made out

The government will __________ the country through the difficulties ahead.

A. direct B. lead C. guide D. draw

People in industrial countries take in _________as they actually need every day.

A. twice as much protein B. protein as much twice

C. twice protein as much D. protein as twice as much

The lady said she would buy a gift for her daughter with the_____.

A.20 dollars remained B. 20 dollars to remain

C. remained 20 dollars D. remaining20 dollars

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