[题目]What does the woman mean?A. The new computer is cool.B. Her computer broke down.C. She needs a bigger computer. 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】What does the woman mean?

A. The new computer is cool.

B. Her computer broke down.

C. She needs a bigger computer.

【答案】B

【解析】

此题为听力题，解析略。

练习册系列答案

California condors are North America’s largest birds, with wind-length of up to 3 meters. In the 1980s, electrical lines and lead poisoning(铅中毒) nearly drove them to dying out. Now, electric shock training and medical treatment are helping to rescue these big birds.

In the late 1980s, the last few condors were taken from the wild to be bred(繁殖). Since 1992, there have been multiple reintroductions to the wild, and there are now more than 150 flying over California and nearby Arizona, Utah and Baja in Mexico.

Electrical lines have been killing them off. “As they go in to rest for the night, they just don’t see the power lines,” says Bruce Rideout of San Diego Zoo. Their wings can bridge the gap between lines, resulting in electrocution(电死) if they touch two lines at once.

So scientists have come up with a shocking idea. Tall poles, placed in large training areas, teach the birds to stay clear of electrical lines by giving them a painful but undeadly electric shock. Before the training was introduced, 66% of set-freed birds died of electrocution. This has now dropped to 18%.

Lead poisonous has proved more difficult to deal with. When condors eat dead bodies of other animals containing lead, they absorb large quantities of lead. This affects their nervous systems and ability to produce baby birds, and can lead to kidney(肾) failures and death. So condors with high levels of lead are sent to Los Angeles Zoo, where they are treated with calcium EDTA, a chemical that removes lead from the blood over several days. This work is starting to pay off. The annual death rate for adult condors has dropped from 38% in 2000 to 5.4% in 2011.

Rideout’s team thinks that the California condors’ average survival time in the wild is now just under eight years. “Although these measures are not effective forever, they are vital for now,” he says. “They are truly good birds that are worth every effort we put into recovering them. ”

【1】California condors attract researchers’ interest because they _________.

A. are active at night

B. had to be bred in the wild

C. are found only in California

D. almost died out in the 1980s

【2】Researchers have found electrical lines are _________.

A. blocking condors’ journey home

B. big killers of California condors

C. rest places for condors at night

D. used to keep condors away

【3】According to Paragraph 5, lead poisoning _________.

A. makes condors too nervous to fly

B. has little effect on condors’ kidneys

C. can hardly be gotten rid of from condors’ blood

D. makes it difficult for condors to produce baby birds

【4】This passage shows that _________.

A. the average survival time of condors is satisfactory

B. Rideout’s research interest lies in electric engineering

C. the efforts to protect condors have brought good results

D. researchers have found the final answers to the problem

【题目】If you happen to go to that river, you’ll find it more dangerous than commonly _______.

A. supposing B. to have supposed C. being supposed D. supposed

【题目】A Teenage Inventor

The world could be one step closer to quick and inexpensive Ebola detection thanks to a teenager from Connecticut.

Olivia Hallisey, a junior at Greenwich High School, was awarded $50,000 in the Google Science Fair for her new method that detects Ebola, a virus that causes bleeding from different parts of the body and usually causes death. Olivia’s method is to ask patients to put their saliva (唾液) onto a testing card. The card changes color if the person is catching Ebloa. Present Ebloa tests take up to 12 hours and cost $1,000. Olivia’s method, however, can be done just in 30 minutes for about $25. Besides, the sample (样本) doesn’t have to be put in a refrigerator thanks to the silk material Olivia uses to produce the testing cards.

Olivia was inspired to deal with this global problem after watching the news that more than 10,000 people died from Ebola in West Africa. She was particularly worried about the fact that, while the acts of involvement can improve survival rates, present detection methods are costly, time-consuming and require complex tools. Olivia got help from her science research teacher. She drew out directions from past research, and figured out detection systems that have proven to work with other diseases, including Lyme disease and yellow fever.

“What affects one country affects everyone,” Olivia told CNBC. “We have to work together to find answers to the huge challenges which cause harm to the global health.” The Connecticut’s teen, who hopes to become a doctor one day, was named the Google Science Fair winner in the competition of 20 competitors from across the globe. The fair is open to young people between the ages of 13 and 18 in most countries.

Olivia hopes her success will inspire other girls interested in science and computers. “I would just encourage girls to try it in the beginning, and remind them that they don’t have to feel naturally drawn or feel like they have a special talent for maths or science,” she told CNBC, “but just really look at something they are interested in and then think how to improve something or make it more enjoyable or relate it to their interests.”

【1】According to the passage, present Ebola detection methods ______.

A. must use a large amount of samples

B. may detect other deadly viruses as well

C. have proven to be ineffective in practice

D. require samples to be kept in refrigerators

【2】What can we learn about Olivia’s method?

A. Time-consuming. B. Cheap.

C. Complex. D. Out-of-date.

【3】What does the underlined word “drawn” in Paragraph 5 probably mean？

A. Attracted. B. Controlled.

C. Admitted. D. Exposed.

【4】The Google Science Fair is intended for ______.

A. students B. doctors

C. inventors D. scientists

【题目】Section B

Directions：Fill in each blank with a proper word chosen from the box. Each word can be used only once. Note that there is one word more than you need.

People Think Meals Taste Better If They Are Expensive

It is said that there’s no such thing as a free lunch, but even if you manage to bag a bargain meal, it will not taste as good as a more expensive meal, according to scientists.

A new study has found that restaurant 【1】 who pay more for their meals think the food is tastier than if it is offered for a smaller price. The experts think that people tend to associate cost with quality and this changes their 【2】 of how food tastes.

Scientists at Cornell University in New York studied the eating habits of 139 people enjoying an Italian buffet (自助餐) in a restaurant. The price of the food was set by the 【3】 at either $4 or $8 for the all-you-can-eat meal. Customers were asked to 【4】 how good the food tasted, the quality of the restaurant and to leave their names.

The experiment 【5】 that the people who paid $8 for the food enjoyed their meal 11 percent more than those who ate the “cheaper” buffet. Interestingly those that paid for the $4 buffet said they felt guiltier about loading up their plates and felt that they 【6】. However, the scientists said that both groups ate around the same quantity of food in total, according to the study 【7】 at the Experimental Biology meeting this week.

Brian Wansink, a professor of 【8】 behaviour at the university, said: “We were fascinated to find that pricing has little impact on how much one eats, but a huge impact on how you 【9】 the experience.” He thinks that people enjoyed their food more as they associated cost with quality and that small changes to a restaurant can change how tasty people find their meals.

In a(n) 【10】 study, scientists from the university showed that people who eat in dim lighting consume 175 less calories (卡路里) than people who eat in brightly lit areas.

【题目】—I’m sure we’ll have a good time with Henry at your birthday party.

—Maybe, but it’s still a question ________ he could spare some time.

A. whetherB. that

C. whatD. which

【题目】What is the man doing？

A. Offering a suggestion.

B. Asking for help.

C. Giving a warning

【题目】______you didn’t know the rules won’t be an excuse for your failure to report.

A. Whether B. Where C. That D. Why

【题目】____ I'm mistaken, I've seen that tall man at a party before.

A． If B． As

C． Unless D． When

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