【快乐考生】2015届高考英语一轮总复习 Unit 4 Global
warming课时作业 新人教版选修6
Ⅰ.完形填空
(2013·宁夏模拟)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 cannot __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”．
[文章大意]几乎每个人都想变得更加聪明，然而科学家却发现人的聪明是有限度的。 1．A.ability C．memory
B．character D．emotion
解析：对应后文信息：intelligence and attention可知，此处指我们努力提高自己的记忆力(memory)。“ability”能力；“character”性格；“emotion”情感。
答案：C 2．A.go through C．get through
B．put through D.carry through
解析：“go through”经历；“put through”接通，完成；“get through”度过，做完；“carry through”进行，贯彻。句意：我们一杯接一杯地喝咖啡为了帮助自己度过这一天。
答案：C
3．A.Though C．However
B.Therefore D．Meanwhile
解析：该段提出了一个与前文相反的观点，故用副词“However”然而。 答案：C 4．A.standards C．ranges
B．measures D．limits
解析：“standards”标准；“measures”措施；“ranges”范围；“limits”限度，极限。句意：人们能够达到多聪明是有限度的。
答案：D
5．A.At first C．For example
B.In addition D.Above all
解析：“at first”首先；“in addition”另外；“for example”例如；“above all”最重要的是。句意：例如，我们并不能长到3米高。
答案：C 6．A.until C．before
B．because D．so that
解析：前后分句间为因果关系，故用because(因为)。 答案：B 7．A.blood C．breath
B.information D．strength
解析：句意：我们不能长到3米高是因为大多数人的心脏不够强大，不能将血液(blood)送到那么高。“information”信息；“breath”呼吸；“strength”力气，力量。
答案：A
8．A.factors C．aspects
B.reasons D.effects
解析：句意：一个婴儿的大脑尺寸被一系列的因素(factors)所限制。“reasons”原因；“aspects”方面；“effects”影响。
答案：A 9．A.chances C．choices
B．deaths D．lives
解析：句意：如果我们的大脑长得更大了，那么在孩子出生时就可能有更多的死亡案例(deaths)。
答案：B
10．A.smarter C．lower
B.better D.higher
解析：根据后文“their increased brainpower”可知，此处指犹太人有比其他欧洲人更高的(higher)智商。
答案：D 11．A.likely C．probable
B．possible D.sure
解析：“be likely to”有可能……。“possible”和“probable”通常用“it”作形式主语；“be sure to”一定会，不符合句意。
答案：A 12．A.physical C．personal
B．bodily D．nervous
解析：与大脑(brain)有关的只能是神经(nervous)系统。 答案：D
13．A.exercising C．memorizing
B.concentrating D.thinking
解析：句意：如果智力不能被提高，我们是不是至少能在注意力(concentrate)上更擅长呢？“exercise”锻炼；“memorize”记忆；“think”思考，后文：...that improve attention也是信息暗示。
答案：B
14．A.poisons C．plants
B.drinks D.drugs
解析：根据后文信息：...found the drugs only...可知答案。 答案：D
15．A.attention C．health
B.family D．living
解析：句意：他们发现这些药品只能帮助那些有严重注意力(attention)问题的人。 答案：A
【快乐考生】高考英语一轮总复习 unit 4 global warming课时作业 新人教版选修6
