题目内容

We must be in a place of peace and faith, so internal conflict and disbelief do not hold back ________ it is possible for us to achieve.

A. how B. what C. why D. where

练习册系列答案
相关题目

阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

I work in a big factory in a town 1. is quite far from my home. One day，after a whole 2.(day) work，I went back home by bus. That day was 3. long，hard one for me as the stress from work weighed heavily on my mind.

A girl4.(sit) next to me asked me some questions 5. (causal) and we had a short conversation. I 6.(think) to myself that she was just a stranger to me and didn't take much interest.

7. a while，she suddenly handed me some chocolates and said that it was her birthday. I immediately responded with a smile and my heart felt free of the stress that I was carrying．In a single moment I felt the heaviness of the day 8. (transform) into lightness of a feather. Her simple act gave me joy even if I don't particularly enjoy9.(sweet) as much. The only thing that I could do 10.(be) that I wished her a long life. I can't remember her face now but recalling the incident makes me happy.

Now scientists have discovered the first evidence that the animals actually behave like their masters. Just like children, they adopt a “look and learn” approach which means they can mimic (模仿) human's actions when going about their tasks.

Biologists and psychologists at the universities of Vienna and Oxford designed an experiment to test the theory that dogs do have the ability to copy what they see, using a simple wooden box. In the study, ten owners showed their dogs how to open the wooden box, sometimes using their heads to push a handle and sometimes using their hands.

In the first part of the test, five dogs were rewarded with a piece of sausage for copying their owners' actions. The other five were rewarded with food for not copying, and using other methods. With each dog the experiment was repeated hundreds of times, and the time taken for a dog to get it “right” on 85 percent of attempts (17 goes out of 20) was recorded. The dogs encouraged to mirror their owners reached this point almost three times sooner on average than those rewarded for not copying them. In the second part of the test, all the dogs were only rewarded for copying the method their owners used. The five dogs previously rewarded for copying their owners reached the 85 percent mark more than twice as the other five.

In a paper published in Proceeding of the Royal Society, they concluded, “Like humans, dogs can't help imitating actions they see.” Going further, they said, “The results suggest the imitative (模仿的) behavior of dogs is shaped more by their developmental interactions with humans than by their evolutionary (进化的) history of domestication (驯化).”

Caroline Kisko, from the Kennel club, said, “A dog's behavior is influenced much like that of a child learning right from wrong and adopting similar patterns of behavior. We hope that owners understand the importance of their actions and use this knowledge to set good examples and therefore positively influence the behavior of their pets.”

1.What's the best title of the passage?

A. Dogs Are Intelligent Animals

B. Dogs Are like Children Most

C. Dogs Behave like Their Masters

D. Dogs Can Complete Simple Tasks

2.The underlined part “they” in Paragraph 4 most probably refers to ________.

A. the dogs' masters

B. the magazine's publishers

C. all the people involved in the experiment

D. the biologists and psychologists

3.The researchers believe dogs' imitative behavior comes mainly from ______.

A. domestication B. human rewards

C. evolution D. human-dog interactions

4.What can be inferred from the last paragraph?

A. Masters should influence their dogs as early as possible.

B. A man's bad behavior may influence his dog.

C. Dogs can't be influenced by men easily.

D. Dogs always behave positively.

Scientists have exactly discovered the set of brain cells involved in making risky decisions, and have been able to control them in rats using targeted light. By changing the activity of the cells they were able to change the behaviour of risk-taking rats to avoid risk, hinting the approach could in future be used to treat people with impulse (冲动) control problems.

Risk-taking is a key part of survival, knowing when to take a chance could pay off—such as moving to a new area to look for food when pickings are slim.

While all animals need an element of risk, the preference towards it varies between individuals. Researchers found this variation, which determines how risk-averse an individual is, is regulated by brain cells in a region of the brain called the nucleus accumbens. This cluster of neurons releases the neurotransmitter dopamine, which regulates the brain’s reward and pleasure centres.

Previous studies have shown that in patients with Parkinson’s disease, taking medication which blocks specific dopamine receptors (DR2) (受体) leads to increased gambling (赌博) behaviour and risk taking behaviour. In studies with rats, researchers were able to use a technique called optogenetics (光遗传学)—which uses light sensitive proteins to change the activity of cells—to modify cells with DR2 in the nucleus accumbens.

Rats were trained to choose one of two levers, offering them a choice between a “safe” or “risky” choice. The safe option resulted in a small, but consistent amount of a sugar water treat. But the risky choice consistently delivered smaller amounts of sugar water, with the occasional large pay off—essentially encouraging the animals to gamble for a bigger prize. Around two-thirds of the animals weren’t keen on risk, opting for the safe option, but the remaining third were risk-seekers. Brain scans of the animals showed that those with low levels of DR2 consistently went for the gamble.

But using pulses of light to stimulate (刺激) the DR2 cells and improve their activity could cause the risk-takers to play it safe and opt for the guaranteed but less rewarding option. Once the light-pulses stopped, the risk-takers returned to their gambling strategy.

In the risk-averse animals, stimulating the same cells had little to no effect.

Professor Karl Deisseroth, of Stanford University in California, said: “Humans and rats have similar brain structures involved.”And we found a drug known to increase risk preference in people had the same effect on the rats. So every indication is that these findings are relevant to humans. “Risky behavior has its moments where it’ s valuable. As a species, we wouldn’t have come as far as we have without it.”

1.The variation in people’s preference towards risks is directly regulated by ________.

A. nucleus accumbens B. light sensitive proteins

C. neurons D. dopamine

2.From the experiment with rats, we can conclude that ________.

A. the lack of DR2 cells results in a safe option

B. the levels of DR2 have little to do with their choices

C. the high levels of DR2 can make animals avoid risks

D. the risky choice is a less rewarding option

3.The underlined words in Paragraph 7 most likely mean the animals that are ________.

A. willing to take big risks

B. reluctant to take risks

C. fond of gambling strategy

D. afraid of receiving stimulation

4.What can be inferred from what Professor Karl Deisseroth said?

A. Humans and rats differ in their preference for risk-taking.

B. Too much risk-taking can do more harm than good.

C. Risk-taking can be used to treat people with impulse control problems.

D. Risk-taking is a means of survival and brings higher returns to humans.

I remember when I was a child ________ with how many toys my cousin had.

A. impressing B. to impress

C. being impressed D. impressed

In public places, improved child-care facilities will benefit ________ genders, not just women.

A. both B. all C. either D. other

China Daily

Classified Page

Advertising Rates

Published every Wednesday and Friday.

Minimum（smallest）Size: 1 col ×3 cm

Personal: RMB 100 yuan/cm

-Engagements, Marriage, Births, Deaths, Obituaries, Funerals, Birthday greetings, Holiday greetings, Anniversaries

Shopping Guide: RMB 100 yuan/cm

-Department store and supermarket shops only

Education: RMB 100 yuan/cm

-Vocational training or courses for foreigners offered by universities and colleges

Services: RMB 120 yuan/cm

-Computer service, Business centers, Interior decoration, Cars for lease, Used cars wanted/for sale, Business offices wanted, Travel, Restaurants and entertainment

Recruitment: RMB 140 yuan/cm

Property, Trade and Investment: RMB 170 yuan/cm

-Merchandise wanted/for sale, business/capital solicited

Legal & General Notices: RMB 170 yuan/cm

-General and legal announcements, Auctions, Lost & Found, Changes of address

Surcharges: 30 col × cm plus 20%, Half page 40%, Full page 50%

All art or production fees（charges）carry a surcharge

1．China Daily reserves the right to make any alterations （修改）it seems necessary and to reject advertisement which violates（breaks）the Advertisement Law of the People’s Republic of China or contains fraudulent, deceptive, or misleading statements or illustrations （例证）.

2．Advertisers who wish to insert an ad should submit （put forward）an Advertising Order Form with all advertisement information and any necessary documents（证件）10 days before the date of publication. After this deadline, additional charges will be incurred （brought upon oneself）.

Tel : （86 - 10）64941104, 64924488 ext. 2117

Fax: （86 - 10）64941104

E- mail: cads @ chinadaily. com. cn

1.Which of the following advertising rates is the lowest?

A. Services B. Legal & General notices

C. Education D. Recruitment

2.If someone wants to advertise his trade goods in the newspaper, the least fee he’ll pay is RMB ___ Yuan.

A. 140 B. 170

C. 360 D. 510

3.Which of the following statement is right?

A. The smaller the size is, the lower the advertising rate is.

B. The larger the size is, the lower the advertising rate is.

C. The size has nothing to do with the advertising rate.

D. The advertising fee is decided only by the size.

4.China Daily refuses to accept the advertising that ________.

A. contains any illustrations

B. is put in after the deadline

C. contains anything false

D. is too long

1 always figured that comedians were the best kind of people to hang around with as a kid. They tell funny stories, make joke after joke, and happiness seems never to leave them. But time goes on, and we come to see these same people as clowns on the outside, but crying a river in the inside. Comedy from these people comes from a deep pain and sadness in their lives, or out of a deep-seated anger they have at the world around them.

Look at Richard Pryor, need I say more? Richard seemed to have everything. For Superman m , he ended up getting more money than Christopher Reeve did. Yet he said while he was in his forties that the last truly happy moment he remembered in his life was when he was jumping around in the dirt while pretending to be a cowboy at the age of 10. This guy set himself on fire, and he played that for laugh while performing live at the Sunset Strip ! Comedy was his constant weapon against pain, and he never held anything back.

The movie Funny People understand very well this gloomy field many comedians have to survive in. It stars Adam Sandler as George Simmons, a famous comedian in the movie. Simmons has it all: a beautiful mansion overlooking the sea, a swimming pool,great cars, and so on. But in his eyes, we see that he is a sad man who has come to truly look down upon himself for what he has become. All the wealth he has collected only serves to separate him from the rest of the world and it makes him defensive when around total strangers who cannot see him as a normal person. But now, he hears from his doctor that he has a terminal disease and has only months left to live. Simmons reacts to this news as if someone took away his blood in the heart, and it makes him clearly see just how much he hates his life. So now he has to make every minute count.

Then come a series of funny stories.

Comedy is just life as it is, isn't it?

1. What can we infer about "comedians" according to the text?

A. Comedians like to get along with kids.

B. Comedians' life is full of jokes.

C. Comedians often use their sad experience.

D. Comedians often cry in their daily life.

2.When was the happiest moment for Richard Pryor?

A. When he played the part of SupermanⅢ．

B. When he got more money than Christopher Reeve.

C. When he pretended to be a cowboy in the childhood.

D. When he performed live at the Sunset Strip.

3.Why was George Simmons unhappy?

A. He had no friends at all.

B. He spent too much on his house.

C. He wasn't accepted by the outside world.

D. He was hated by all the strangers around.

4.By saying "Comedy is just life as it is, isn't it?", the author means____

A. life like comedy will make you happy

B. comedy comes from the sadness in real life

C. there is no happiness at all in real life

D. life is full of comedy in reality

英国Warwickshire学校将组织学生来你校交流学习中文。经安排，Tracy住在你家。假设你是李华，请你给Tracy写封电子邮件，介绍她来中国后的有关事宜，信的要点如下：

★表达欢迎；

★生活安排：食宿，交通；

★汉语学习：每周一至周五，每天四节课；

★课外活动：文体活动，社会实践活动。

要求：100字左右；可适当增加细节，使行文连贯。

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