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Global warming could make humans shorter, warn scientists who are said 【小题1】（find）evidence that it caused the world’s first horses to shrink nearly 50 million years ago.

In fact, a team from the universities of Florida and Nebraska says it has found a link between the earth 【小题2】（heat）up and the size of mammals — horses. The scientists used fossils to follow the evolution（进化）of horses from their earliest 【小题3】（appear）56 million years ago.

“As temperatures went up, 【小题4】（they）size went down, and vice versa; at one point they were as small as a house cat,” said Dr. Jonathan Bloch, curator of the Florida Museum of Natural History. The scientists say that the current warming could have the same effect 【小题5】 mammals — and could even make humans 【小题6】（small）.

Horses 【小题7】（start）out small, about the size of a small dog like a miniature schnauzer.【小题8】 is surprising is that after they first appeared, they then became even smaller and then dramatically increased in size, and that 【小题9】（exact）agrees with the global warming event. “It had been known that mammals were small when it was warm,【小题10】 we hadn’t understood that the temperature really was driving the evolution of body size,” Dr. Bloch said in the Science journal.

   Before I studied psychology，I used to think that people would laugh when funny things occurred. While I was right about that，I discovered there are lots of other psychological reasons that make people laugh other than the funny part of a joke. When someone laughs at a joke，there will usually be more than one reason that makes him laugh-and the more reasons there are，the more powerful the joke will be.

I was attending a stand-up comedy show in Egypt，and when the man started to make fun of pedestrians crossing streets，everyone laughed their head off. The main reason why those people strongly laughed was that almost all of them felt angry with pedestrians who crossed streets carelessly. The joke wasn't only funny，it also made the audience feel that they were right about being angry at those pedestrians. That is，people were laughing because of both the funny joke and the happiness experienced as a result of the psychological support they got.

The better a joke makes a person feel，the more it includes other psychological factors，and the more the person will like it. For example，if you envy one of your friends，and someone tells a joke that is funny and，at the same time，makes your friend seem stupid，then you will probably laugh at it louder than if you weren't jealous（嫉妒的）of him.

In short, we not only laugh when we hear something funny, but also laugh when we experience some kind of happiness that results from the other psychological factors involved in the joke. I strongly discourage making fun of anyone or belittling someone to make someone else laugh. All I want to explain is that if your joke supports a person's emotions, he will certainly like it a lot.

【小题1】What did the author find out after studying psychology?

A．Only good jokes make people laugh.

B．Many reasons lead to people laughing.

C．Funny things can make people laugh.

D．Laughter can make people healthy.

【小题2】Why did the audience laugh at the pedestrians?

A．Because they played a trick on the pedestrians.

B．Because the pedestrians behaved in a funny way.

C．Because they could feel the pedestrians' happiness.

D．Because their emotions were approved of by the show.

【小题3】What does the underlined word "belittling" probably mean？

A．Speaking highly of.	B．Getting close to.
C．Looking down on.	D．Feeling content with.

   What’s your opinion on spicy food? Some people cannot handle even the smallest amount of chili peppers in their dinner while others can’t get enough of them.

Scientists have long been puzzled by why some people love the chili while others loathe it. Plenty of research has been done on the subject, dating as far back as the 1970s. Previous results showed that a love of chilies is related to childhood experiences, and that cultural influences affect our taste too. But the latest study has found that a person’s love of spicy food may be linked to his or her personality (性格) more than anything else, CBC News reported.

“We have always assumed that liking drives intake — we eat what we like and we like what we eat. But no one has actually directly bothered to connect personality with intake of chili peppers,” said Professor John E. Hayes from Pennsylvania State University, who led the study.

But before you look at the study, you should first know that “spicy” is not a taste, unlike sour, sweet, bitter and salty taste. It is, in fact, a burning feeling that you feel on the surface of your tongue. This got scientists thinking that maybe a love of spicy food is brought about by people’s longing for thrill, something they usually get from watching action movies or riding a roller coaster.

In the study, 97 participants, both male and female, were asked to fill out questionnaires about their personality, for example, whether they like new experiences or tend to avoid risks. They were then given a glass of water with capsaicin (辣椒素), the plant chemical that makes a chili burn, mixed into it.

By comparing the answers to the questionnaire and what participants said they felt about the spicy water, researchers found that those who tended to enjoy action movies or take risks were about six times more likely to enjoy the spicy water.

Interestingly, we used to believe that the reason why some people can withstand (耐受) spicy food is that their tongues have become less sensitive to it. However, this latest study has found otherwise. “It’s not that it doesn’t burn as badly, but that you actually learn to like the burning feeling,” Hayes explained.

【小题1】What’s the meaning of the underlined word “loathe” in the second paragraph?

A．Dislike.	B．Fear.
C．Put up with.	D．Adapt to.

【小题2】What did Professor John

A．Hayes and his team discover from their study?

B．What we eat actually helps to develop our personality.

C．Males are more likely to enjoy spicy food than females.

D．Those trying to avoid risks tend to be less interested in spicy food.

E．People are wrong to treat " spicy" as a kind of taste rather than a feeling.

【小题3】Why do some people like spicy food according to the recent study?

A．Because their taste has become less sensitive.

B．Because they love the burning feeling.

C．Because they want to challenge themselves.

D．Because the more they try spicy food, the less it burns.

【小题4】What’s the main idea of the passage?

A．What one likes to eat mainly depends on one’s personality.

B．Whether one enjoys spicy food depends largely on one’s personality.

C．One’s personal experiences have nothing to do with their taste.

D．Different people have different taste.

_【小题1】___ .Being angry doesn’t really solve much, but what people do when they feel angry is important. The goal is to calm down and try to solve what is bothering you. This is hard for some kids and adults, too. Instead of calming down, some kids might keep getting more and more upset until they explode like a volcano!【小题2】___ .Their anger might be so strong that they lose control of their temper. They may act in ways unacceptable and hurtful. People may say that someone has trouble controlling their temper.【小题3】Some kids might get so angry that they scream at their parents, break something , or even worse , hit their brothers or sisters.【小题4】.However, it’s not OK for a kid to do any of those things .Kids don’t want to act in this way , but sometimes angry feelings can be hard to manage. So what to do?Well, the good news is that kids don’t just have to keep making the same mistakes over and over again.【小题5】.Imagine your temper as a puppy inside you that needs some training. The puppy is not bad ---- it will probably turn out a great dog. It just needs to learn some rules because, right now, that puppy is causing some problems to you.

A．In fact, they usually mean that a kid behaves badly when feeling angry. B．You don’t want to cause trouble. C．Kids should be allowed to express their feelings, even angry ones. D．Some kids get angry more often or more easily than some other kids. E．You can train you temper. F．Instead of thinking of the person you’re angry with, think of something else. G．Everybody gets angry sometimes.

 

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To find out whether such a"sixth sense" 【小题1】 (real) exists, Baker performed two experiments. In the first one, Baker 【小题2】(sit) behind unknowing people in public places and stared at the backs of their heads for 15 minutes. The subjects(实验对象)were eating, drinking, reading, studying, watching TV or working. And Baker made sure that the subjects could not tell that he was sitting behind them during those periods. Later, 【小题3】 he questioned the subjects, they said they had no sense 【小题4】 someone was staring at them.
In the second experiment, Baker told the subjects that they would be stared at 【小题5】 time to time from behind in a laboratory setting. The subjects had to write it down when they felt they were being stared at. Baker found that the subjects were not 【小题6】(good) at telling when they were stared at and when they weren't. Baker came to a 【小题7】(conclude) that people do not have the ability 【小题8】(sense) when they're being stared at. " If people doubt the results of these two experiments, I suggest they 【小题9】(repeat) the experiments and see it 【小题10】(they), " said Baker.