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Almost everyone wants to get smarter. We struggle to improve our 36_ , intelligence and attention. We drink cup after cup of coffee to help us 37_  the day.

38 __, a new study published in Current Directions in Psychological Science warns that there are 39___ to how smart humans can get.

Each of our body parts develops in a certain way for a reason. 40  _, we are not 3 meters tall 41 _ most people’s hearts are not strong enough to send 42 _  up that high. Scientists say that our thinking ability works in the same way. A baby’s brain size is limited by a series of __43, such as the size of the mother’s pelvis (骨盆). If our brains developed to be bigger, there could be more 44during childbirth.

The study of Jews, who have an average IQ much _ 45_  than other Europeans, showed they were more _46_  to develop diseases of the _47_  system. This might be because of their increased brainpower.

If intelligence cannot be improved, can we at least get better at _ 48 _ ? Not really, say scientists. They studied _49_  like caffeine (咖啡因)that improve attention. They found the drugs only helped people with serious 50 _ problems. For those who did not have trouble paying attention, the drugs could have the 51 _ effect. Scientists say that this suggests there is a(n)52limit to how much people can or should concentrate.

Our memory is also a “double-edged sword”. People with extremely good memories could 53__ having a difficult life because they cannot _54bad things that happen to them.

Thomas Hills, one of the authors of the paper, said that 55  all the problems in trying to get smarter, it’s unlikely that there will ever be a “super mind”.

1.                A.ability          B.character       C.memory  D.emotion

2.                A.go through      B.put through      C.get through    D.carry through

3.                A.Though         B.Therefore       C.However  D.Meanwhile

4.                A.standards       B.measures       C.ranges   D.limits

5.                A.At first         B.In addition       C.For example   D.Above all

6.                A.until           B.because        C.before   D.so that

7.                A.blood          B.information      C.breath   D.strength

8.                A.factors         B.reasons         C.aspects   D.effects

9.                A.chances        B.deaths          C.choices   D.lives

10.               A.smarter        B.better          C.lower D.higher

11.               A.likely          B.possible        C.probable  D.sure

12.               A.physical        B.bodily          C.personal   D.nervous

13.               A.exercising      B.concentrating    C.memorizing D.thinking

14.               A.poisons        B.drinks          C.plants     D.drugs

15.               A.attention       B.family          C.health D.living

16.               A.same          B.opposite        C.different  D.similar

17.               A.lower          B.smaller         C.upper     D.higher

18.               A.end up         B.make up        C.start up   D.come up

19.               A.forget          B.remember      C.perform   D.share

20.               A.supposing       B.concerning      C.considering D.regarding

高一英语完型填空中等难度题

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