3.Let's 　　　 making a mature decision until we have got more and actual information.

A. postpone B. declare

C. assess D. adjust

提示:从until看出空白处要填入表示"推迟"的动词,postpone "推迟",其后接动名词。declare"宣布";assess "评估";adjust "调整"。

答案:A

Ⅲ.完形填空

Almost everyone wants to get smarter. We struggle to improve our 　1　,intelligence and attention. We drink cup after cup of coffee to help us 　2　 the day.

　3　,a new study published in Current Directions in Psychological Science warns that there are 　4　 to how smart humans can get.

Each of our body parts develops in a certain way for a reason.　5　,we are not 3 meters tall 　6　 most people's hearts are not strong enough to send 　7　 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 　8　,such as the size of the mother's pelvis(骨盆).If our brains developed to be bigger, there could be more 　9　 during childbirth.

The study of Jews, who have an average IQ much 　10　 than other Europeans, showed they were more 　11　 to develop diseases of the 　12　 system. This might be because of their increased brainpower.

If intelligence cannot be improved, can we at least get better at 　13　?Not really, say scientists. They studied 　14　 like caffeine(咖啡因)that improve attention. They found the drugs only helped people with serious 　15　 problems. For those who did not have trouble paying attention ,the drugs could have the 　16　 effect. Scientists say that this suggests there is a(n) 　17　 limit to how much people can or should concentrate.

Our memory is also a"double- edged sword".People with extremely good memories could 　18　 having a difficult life because they can not 　19　 bad things that happen to them.

Thomas Hills, one of the authors of the paper, said that 　20　 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

提示:句意:几乎每个人都想变得更聪明。"我们"都想努力提高"我们"的　　　、智力和注意力。根据第六段的"Our memory is also a'double-edged sword'"可知此处填记忆力。

答案:C

2. A. go through B. put through

C. get through D. carry through

提示:句意:我们一杯接着一杯地喝咖啡来度日。get through"度过"。

答案:C

3. A. Though B. Therefore

C. However D. Meanwhile