window, he is performing ______.A.an illocutionary act B.a perlocutionary act C.a locutionary act D.direct speech act

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第一篇

Can Gene Technology Make Human Smarter?

Almost everyone wants to get smarter. To achieve that,some choose to do exercise,others choose to take in more nutritions good for brains.Princeton neurobiologist Joseph Z.Tsien possibly found a different way to make it. In September he announced that he'd built a better mouse by altering a gene that affects learning and memory.A similar process of gene manipulation might conceivably be used one day to boost intelligence in humans.
The key of this technology lies in a feature of brain cells called the NMDA receptor,which Tsien likens to a cylindrical tube or window that mediates the flow of information.When the window is open,chemicals called neurotransmitters flow through easily and memory is registered and stored. But as organisms mature,the window begins to close.(This may explain why children lose their facility for learning new languages when they reach sexual maturity and why some people suffer memory loss as they age.)
Tsien also found out that the receptor worked more efficiently if it is teamed with the gene NR2B,so he introduced extra NR2B genes into a batch of fertilized mouse eggs.In a normal mouse,the memory window is open for just 150-thousandths of a second.In Tsien's specially engineered mice,the window opens for 250-thousandths of a second,long enough to make a remarkable difference in memory retention.When he pitted his mice against common mice,they won paws down.Ordinary mice could recognize a Lego block for 12 hours,but smart mice could remember the block for up to three days."That's a profound enhancement,"Tsien says.
Can this technology be applied to humans?Maybe,but genetic engineering will have to make some extraordinary advances first. And some thorny ethical issues will have to be resolved. Mean-while,Tsien promises to keep his furry little geniuses locked up in a lab,far from your larder. "Otherwise,"he says,"you might need a smart cat or a smart mousetrap to catch them."

Why do some old people are likely to lose their memory?
A:As one's organism mature,the window for memory is likely to close.
B:There is not enough nutrition in their brains.
C:They have remembered too much inftrmation.
D:The cells in their brains are getting too old to store much information.

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A Lucky Break
Actor Antonio Banderas is used to breaking bones,and it always seems to happen when he's______(1) sport.In the film Play It to the Bone he______(2) the part of a middleweight boxer alongside Woody Harrelson.______(3)the making of the film Harrelson______(4) complaining that the fight______(5)weren't very convincing,so one day he suggested that he and Banderas should have a fight for real.The Spanish actor wasn't______(6)on the idea at first,but he was______(7) persuaded by his co-star to put on his gloves and climb into the boxing ring.However,when he realized how seriously his______(8) was taking it all,he began to regret his decision to fight.
And then in the third round,Harrelson hit Banderas______(9)hard in the face that he actually broke his nose.His wife,actress Melanie Griffith,was furious that he had been playing“silly macho games”.“She was right,”confesses Banderas,“and I was a fool to______(10)a risk like that in the middle of a movie.”
He was______(11)of the time he broke his leg during a football match in his native Malaga.He had always______(12)of becoming a soccer star,of performing in front of a big crowd,but doctors told him his playing days were probably over.“That's when I decided to take______(13) acting；I saw it as______(14)way of performing,and achieving recognition.What happened to me on that football______(15)was,you might say,my first lucky break.”

12._________
A:hoped
B:pretended
C:dreamed
D:looked forward

He broke the window in his anger

A:despair
B:embarrassment
C:frustration
D:rage

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A Lucky Break
Actor Antonio Banderas is used to breaking bones,and it always seems to happen when he's
______(51)sport .In the film Play It to the Bone he______(52)the part of a middleweight boxer alongside Woody Harrelson.______(53)the making of the film Harrelson
______(54)complaining that the fight.______（55)weren't very convincing,so one day he suggested that he and Banderas should have a fight for______(56).The Spanish actor wasn't keen on the idea at first,but he was______(57)persuaded by his co-star to put on his gloves and climb into the boxing ring. However,when he realized how seriously his opponent was taking it all,he began to______(58)his decision to fight. And then in the third round,Harrelson hit Banderas______(59)hard in the face that he actually broke his nose.His wife,actress Melanie Griffith,was furious that he had been playing“silly macho games”.“She was right”, confesses Banderas,“and I was a fool to______(60)a risk like that in the middle of a movie.”
He was______(61)of the time he broke his leg during a football match in his native Mal-aga. He had always______(62)of becoming a soccer star,of performing in front of a big crowd,but doctors told him his playing days were probably over.“That's when I decided to take ______(63)acting;I saw it as______(64)way of performing,and achieving recognition. What happened to me on that football______(65)was,you might say,my first lucky break.”

56._________
A: fun
B: real
C: sure
D: serious