【2019-2020】高考英语一轮巩固达标练题Unit2TheOlympicGames（含解析）新人教版必修2

李仕才

***阅读理解

it might be causing health problems that you are not aware of.

A study published in Blood Pressure Monitoring stated that sitting with your legs crossed can increase your blood pressure. The reason for this is that the blood in your legs has to work against gravity to be pumped back to your heart and that crossing one leg over the other increases resistance, making it even harder for the blood to circulate. This causes your body to increase your blood pressure to push the blood back to the heart. You won’t feel any immediate effects, but repeated, drawn­out increases in blood pressure can cause long­term health issues. So, planning to sit for a long period of time? Don’t keep your legs crossed.

“Crossing your legs at the knee can also cause pressure on the major nerve in your leg that passes just below your knee and along the outside of your leg，” explains Richard Graves, a medical expert. This pressure can cause numbness and temporary paralysis(麻痹) of some of the muscles in your foot and leg, preventing you from being able to raise your ankle—what we know as that “pins and needlesrepeatedly crossing your legs until they feel numb can cause permanent nerve damage.

So next time you sit down, try to get yourself in the habit of sitting with both of your feet on the floor. Not only will it help your posture and stability, but it will also save your health in the long run.

【解题导语】　本文是一篇科普说明文。研究表明，虽然跷二郎腿是常见的习惯，但是该习惯会引起血压的升高，还会导致膝盖以下的重要神经受损。所以不要跷二郎腿，要有正确的坐姿。

1．What can we learn about crossing one’s legs?

A．It is a very bad social habit.

B．It is usually practiced deliberately.

C．It can do harm to people’s health.

C　解析：细节理解题。根据第一段的第二句可知，跷二郎腿会引起健康问题，故C项正确。

2．According to the study, sitting with your legs crossed can ．

A．affect your blood pressure

B．resist gravity effectively

C．lead to heart attacks easily

D．improve the function of legs

A　解析：细节理解题。根据第二段的第一句可知，研究表明，跷二郎腿会引起血压的升高，故A项正确。

3．In the third paragraph “pins and needles” probably means “ ”．

A．slightly sharp pains

B．being a little tired

C．serious muscle injuries

D．being highly flexible

A　解析：词义猜测题。根据第三段的“This pressure can cause numbness and temporary paralysis(麻痹) of some of the muscles in your foot and leg, preventing you from being able to raise your ankle”可知，这种压力会导致腿部和脚的一些肌肉暂时麻痹，使人无法站立，有一种针刺感；据此可以判断，画线词意为“轻微的针刺感似的疼痛”，故A项正确。

4．What is the main purpose of the text?

B．To give readers some advice.

C．To evaluate the effects of an experiment.

D．To introduce research methods.

B　解析：写作意图题。根据全文内容尤其是最后一段可知，本文通过分析跷二郎腿这一习惯导致的健康问题，建议人们不要跷二郎腿，要有正确的坐姿，故B项正确。

***语法填空

Do you make friends __1__(easy)? Do a wall­sit test and you'll find out.

Researchers at the University of Oxford did __2__study with 101 participants aged between 18 and 34. Participants first __3__(fill) out questionnaires about their social lives, and they were then asked __4__ (press) against a wall with their __5__(knee) at right angles (直角) for as long as they could, __6__can be really painful.

The results showed that the longer the participants held the position, the bigger __7__(they) outer network—or distant friends they contacted once or twice a month—was. That was__8__the brain's painkilling system is associated__9__both pain tolerance and social bonding, which means that the more active this system is, the __10__(good) you are at both.

1．________ 　2.________ 　3.________ 　4.________ 　5.________ 　6.________ 　7.________ 　8.________ 　9.________ 　10.________

篇章导读：本文是一篇说明文。文章介绍了一项和交友有关的调查，具体方法如下：身体贴墙，膝盖弯曲成直角，根据保持这个姿势的时间长短可以推断出你的社交能力。

1．easily　考查词性转换。此处修饰动词短语make friends，所以要用副词，故填easily。

2．a　考查冠词。句意：牛津大学的研究者们做了一项调查，该调查由18岁到34岁之间的101个人参加。study “调查”，是可数名词，此处泛指“一项调查”，所以用不定冠词a。

3．filled　考查动词的时态。句意：参与者首先填写了关于他们的社交生活的问卷，然后他们被要求尽可能长时间地身体贴墙，膝盖弯曲成直角，这可能很痛苦。分析句子结构可知，该空应填谓语动词，而且是描述过去的事情，所以用一般过去时，故填filled。

4．to press　考查非谓语动词。ask sb. to do sth.为固定搭配，意为“要求某人做某事”，此处是其被动结构形式be asked to do sth.。故填to press。

5．knees　考查名词的复数。knee “膝盖”，是可数名词，其前有their修饰，所以要用复数形式，故填knees。

6．which　考查定语从句的引导词。设空处引导非限制性定语从句，引导词指代整个主句的内容，并且在从句中作主语，故填which。

7．their　考查代词。该空代替的是participants，而且后面有名词network，所以要用复数形式的形容词性物主代词，故填their。

8．because　考查表语从句的连接词。句意：这是因为大脑的镇痛系统与疼痛的耐受性和社会关系都有关，这意味着这个系统越活跃，你在这两个方面表现得越好。此处表原因，故填because。

9．with　考查介词。be associated with为固定搭配，意为“与……有联系”，故填with。

10．better　考查形容词的比较级。“the＋比较级，the＋比较级”为常用句式，意为“越……，越……”，故填better。

***完形填空。

Something quite tragic(悲剧的)happened in our home.It had a __1__ effect on our lives.It __2__ the way we relax and even where we sit.There was no fire or flood...we __3__ our Wi­Fi service，for over a week.

I was raised in the pre­Wi­Fi era，so I was relatively __4__ to the situation.My children，__5__，did not have this training.When given the news that there was no Wi­Fi in the house，their first __6__ was：“But，what will we do？”Fortunately，the TV still worked，although the children were __7__ to find that it had only 70＋ channels.

For the children，a(n) __8__ challenge was homework，most of which is now given online.The lack of broadband seemed to provide a new __9__ of “the dog ate my homework”excuse.My daughter __10__ that one of her friends had her water supply temporarily __11__ due to a leak，but she thought that our lack of Wi­Fi was __12__.“Because you can go to the shop and buy water，right？”

My husband and I need the Internet to __13__ us to work at home.Luckily，I've found out that these days you can go to the shop to __14__ Wi­Fi.Although expensive，it allows you to set up your own Wi­Fi network __15__.Buying 1 GB of data makes you view your broadband differently.I don't want to __16__ it like leaving a tap running.We log on to the Wi­Fi network and do what we have to do as __17__ as possible and log off.

The changes that __18__ has created in our daily life have occurred without us really __19__.The __20__ part of our time without Wi­Fi was seeing the children make forts(堡垒)out of the sofa cushions，which they haven't done in years.

1．A.possible B．modest

C．positive D．huge

2．A.explored B．challenged

C．improved D．guaranteed

3．A.received B．booked

C．lost D．bought

4．A.addicted B．accustomed

C．admitted D．attached

5．A.however B．therefore

C．otherwise D．besides

6．A.impression B．inspiration

C．response D．request

7．A.excited B．grateful

C．embarrassed D．desperate

8．A.avoidable B．major

C．enjoyable D．simple

9．A.version B．translation

C．dimension D．collection

10．A.repeated B．promised

C．observed D．ignored

11．A.fixed up B．cut off

C．used up D．laid in

12．A.worse B．better

C．clearer D．more

13．A.force B．encourage

C．remind D．enable

14．A.look into B．search for

C．purchase D．borrow

15．A.easily B．securely

C．firmly D．constantly

16．A.share B．analyze

C．store D．waste

17．A.steadily B．quickly

C．properly D．smoothly

18．A.technology B．information

C．knowledge D．intelligence

19．A.reflecting B．hearing

C．appreciating D．noticing

20．A.rigid B．tough

C．bright D．necessary

【解题导语】本文是一篇夹叙夹议文，讲述了Wi­Fi对“我”家生活的影响。

【核心词汇】have an effect on对……有影响　temporarily adv.暂时地　log on登录　occur v．发生

1．D　根据上下文可知，家里没有Wi­Fi对我们生活的影响是巨大的(huge)。possible“可能的”；modest“谦虚的”；positive“积极的”。

2．B　根据前一句“It had a __1__ effect on our lives”和下文的“But，what will we do”可知，平时家里离不开Wi­Fi，现在没有了，当然对我们平时的生活方式产生挑战。explore“探索”；improve“提升”；guarantee“保证”。

3．C　根据下文的“When given the news that there was no Wi­Fi in the house”可知，我们家里失去(lost) Wi­Fi一个多星期；receive“收到”；book“订购”；buy“购买”。

4．B　根据第二段第一句“I was raised in the pre­Wi­Fi era”可知，“我”是在没有Wi­Fi的时代长大的，因此对于没有了Wi­Fi也是比较习惯的(accustomed)，be accustomed to表示“习惯于”。

5．A　根据上下文可推知，“我”习惯无Wi­Fi的生活，但是孩子们不习惯。上下文是转折关系，因此选however。

6．C　根据空后的“But, what will we do”可知空处指的是他们的第一反应(response)。

7．D　根据上下文可知，没有Wi­Fi只有电视，且电视频道只有70多个，孩子们很绝望。excited“兴奋的”；grateful“感激的”；embarrassed“尴尬的”；desperate“绝望的”。

8．B　根据本句的定语从句“most of which is now given online”可知，家庭作业应是孩子们的主要(major)挑战。avoidable“可避免的”；enjoyable“令人愉快的”；simple“简单的”。

9．A　空后的“the dog ate my homework”表示“狗吃了我的作业”，此处表示没有网络是这种借口的一个新提法，故选A。

10．C　根据空后的宾语从句“that one of her friends had her water supply temporarily__11__ due to a leak”可知，这些内容应该是女儿讲出来(observed)的。 repeat“重复”；promise“承诺”；ignore“忽略”；observe“观察，说，评论”。

11．B　根据该空后的“due to a leak”可推知，水管漏水了，供水会被暂时中断(cut off)。

12．A　根据上下文可知，女儿认为我们没有Wi­Fi更糟糕(worse)。

13．D　根据上下文可知，为了能够在家工作，丈夫和“我”需要互联网。enable sb.to do sth.表示“使某人能做某事”。

14．C　根据下文的“Although expensive”可知，“我”去商店买(purchase)Wi­Fi。 look into“调查”；search for“寻找”；borrow“借”。

15．A　根据语境可知，买了Wi­Fi，“我”建立自己的网络就容易了。

16．D　根据本句中的“like leaving a tap running(像让水管的水不停地流着一样)”可知，我们知道让水管的水不停地流着意味着“浪费”，故选D。

17．B　根据上下文可知，当“我”上网做事时，“我”是尽快地做，as quickly as possible表示“尽快地”。

18．A　根据语境可知，技术已经引起了我们日常生活的改变，这些改变在我们没有注意(noticing)的情况下发生了。

19．D　参见上题解析。reflect“反思”；hear“听到”；appreciate“欣赏”。

20．C　根据该空后的“without Wi­Fi was seeing the children make forts(堡垒)out of the sofa cushions，which they haven't done in years”可知，没有了Wi­Fi，孩子们可以在一起玩，这是愉快的(bright)事情。

***短文改错。

Dear Lisa，

I'm glad to receive your letter asked about the present holiday life of Chinese students. Learning together with entertainment still take up most of our time. Besides, we often help our parents with the housework or farm work, that makes us realize how hard we work every day and develop a great love for work. Meanwhile, we take active part in social activities, such as voluntary work. We went out to the streets to collect rubbishes or to the hospitals to cheer up the sick children. We try our best to help those who are in need or make our hometown a lot of more beautiful. We find greatly pleasure in these activities.

Yours，

Li Ming

答案：

Dear Lisa，

I'm glad to receive your letter about the present holiday life of Chinese students. Learning together with entertainment still up most of our time. Besides, we often help our parents with the housework or farm work, makes us realize how hard work every day and develop a great love for work. Meanwhile, we take active part in social activities, such as voluntary work. We out to the streets to collect or to the hospitals to cheer up the sick children. We try our best to help those who are in need make our hometown a lot more beautiful. We find pleasure in these activities.

Yours，

Li Ming

难项分析：

第二处：take→takes　此处together with后的名词不影响谓语动词的数，句子的主语是learning，谓语动词用第三人称单数形式，故改为takes。

第七处：rubbishes→rubbish　rubbish表示“垃圾”，是不可数名词，没有复数形式，故改为rubbish。

第九处：去掉of　此处指使我们的家乡变得更加美丽。根据句中的“more”可知，此处修饰比较级，表示程度，故应用a lot。a lot of表示“许多”，修饰名词。