2017版高考英语一轮复习知能演练轻松闯关：必修2 Unit 4《Wildlife Protection》（含解析）

　　Ⅰ.单句语法填空

　　1．I suggest you ____________ (keep) the balance between your study and entertainment，such as doing sports，listening to music and so on.

　　答案： (should) keep

　　2．—What’s that noise，John?

　　—Oh，don’t you know that the school library ____________ (rebuild)?

　　答案： is being rebuilt

　　3．Scientists have many theories about how the universe came ____________ being.

　　答案： into

　　4．I really appreciate ____________ (have) time to relax with you on this nice island.

　　答案： having

　　5．After he retired，the old man did all he could to protect the old temple from ____________ (damage)．

　　答案： being damaged

　　6．Try ____________ I might，I couldn’t get the door open.

　　答案： as

　　7．Everyone should realize the importance of wildlife protection，because some animals are ____________ (endanger)．

　　答案： endangered

　　8．To our ____________ (relieve)，the missing boy returned，safe and sound.

　　答案： relief

　　9．It would be hard for me to get ____________ (employ) by such a large company.

　　答案： employed

　　10．____________ (bite) twice，the postman refused to deliver our letters unless we chained our dog.

　　答案： Bitten

　　Ⅱ.阅读理解

　　A

　　(2016·山东潍坊一模)The poaching，or illegal killing，of rhinos (犀牛) in South Africa is growing worse each year.The government recently reported that a record number of rhinos were poached in 2017，a year which had more rhinos killing in South Africa than ever before.

　　The World Wildlife Fund，or WWF，says about 20,000 rhinos live in South Africa.That is more than 80 percent of the rhinos in the world.Edna Molewa，South Africa’s Environment Minister，says，“During 2017，we are sad to say this,1,215 rhinos were killed.This is a rise in the number of poached rhinos from 1,004 in 2017 and indeed very worrying.”

　　The animals are hunted for their horns (角)．Many people in Asia believe the horn has curing power，which drives poachers，at all costs，mad for more horns.But there is no scientific evidence for this belief.The horn is made of keratin.That is the same thing as human hair，fingernails and toenails.

　　Ms.Molewa said 386 suspected poachers were arrested last year，an increase from the year before.But rhino protection workers say poachers often go unpunished after arrest.South Africa’s legal system is ineffective.Ms.Molewa said more needs to be done and South Africa is taking strong measures to protect rhinos.The efforts include moving some of the animals to secret places in neighboring countries.“Now approximately 100 rhinos have been moved to neighboring states in the SADC region during 2017 and 200 more rhinos will be moved this year，”Molewa said.

　　Jo Shaw，the rhino program manager at the WWF，said，“We’re talking about a loss of a hundred rhinos a month，or more than three a day.We really need to see effective action not just at a national level but internationally.”She says officials should find the criminal groups responsible for the poaching and punish them.Government officials are to meet in Botswana in March at the Intergovernmental Conference on Illegal Wildlife Trade.

　　【文章大意】　本文讲述了犀牛被猎杀的现状、原因及相关的应对策略。

　　1．What do we know about rhinos?

　　A．Half of rhinos live in South Africa.

　　B．Less than 1,000 rhinos were killed in 2017.

　　C．The killing reached the highest point in 2017.

　　D．There are only 20,000 rhinos left in the world.

　　解析：选C。推理判断题。根据第一段的第二句“The government recently reported that a record number of rhinos were poached in 2017，a year which had more rhinos killing in South Africa than ever before.”可推知，2017年非法猎杀犀牛的数量是有史以来最多的，即C项正确。

　　2．What is the main reason for people to hunt rhinos?

　　A．To get more keratin.

　　B．To protect the farmland.

　　C．To use them for decoration.

　　D．To make money from horns.

　　解析：选D。推理判断题。根据第三段的内容可推知，人们猎杀犀牛的主要原因是想用犀牛角来赚钱，即D项正确。

　　3．Jo Shaw thinks that________.

　　A．many criminal groups are well organized

　　B．new laws are needed to punish the killers

　　C．rhino protection needs international cooperation

　　D．conferences about protecting rhinos are to be held every year

　　解析：选C。细节理解题。根据最后一段中的“We really need to see effective action not just at a national level but internationally.”可知，Jo Shaw认为犀牛保护需要国际间的合作，即C项正确。

　　4．What can we infer from the text?

　　A．Rhino protection has a long way to go.

　　B．No one would like to buy horns in the future.

　　C．The illegal killing of rhinos will soon disappear.

　　D．Rhinos living in South Africa will move to other countries.

　　解析：选A。推理判断题。根据第四段的第二、三句“But rhino protection workers say poachers often go unpunished after arrest.South Africa’s legal system is ineffective.”以及最后一段的内容可推知，保护犀牛还有很长的路要走，即A项正确。

　　B

　　(2016·淄博市高三模拟考试)The longer a teenager spends using electronic devices such as computers and smartphones，the worse their sleep will be，a study of nearly 10,000 16­to 19­year­olds suggests.

　　More than two hours of screen time after school was strongly linked to both delayed and shorter sleep.Almost all the teens from Norway said they used the devices shortly before going to bed.Many said they often got less than five hours sleep a night.

　　The teens were asked questions about their sleep routine on weekdays and at weekends，as well as how much screen time they clocked up outside school hours.On average，girls said they spent around five and a half hours a day watching TV or using computers，smartphones or other electronic devices.And boys spent slightly more time in front of a screen—around six and a half hours a day，on average.Playing computer games was more popular among the boys，whereas girls were more likely to spend their time chatting online!

　　Any type of screen use during the day and in the hour before bedtime appeared to disturb sleep—making it more difficult for teenagers to nod_off.And the more hours they spent on these devices，the more disturbed their sleep became.When daytime screen use totalled four or more hours，teens had a 49% greater risk of taking longer than an hour to fall asleep.These teens also tended to get less than five hours of sleep per night.

　　Dr.Hysing said her findings had suggestions for the wider population as so many people use these devices.“We know that sufficient sleep is essential for good physical and mental health.Logging off may be one important step toward securing a good night’s sleep.”

　　Prof Russell Foster，an expert at the University of Oxford，said，“This is an important study as it provides practical evidence that the use of electronic devices before bed does indeed reduce sleep duration.”He said teenagers should be warned of this.

　　【文章大意】　本文是一篇说明文。一项研究发现，青少年花在电子设备上的时间越长，睡眠时间就越短，睡眠质量也越差。因为足够的睡眠对于身心健康都有好处，所以青少年们在睡前应远离电子设备。

　　5．What is stressed in the first two paragraphs?

　　A．Teens now tend to have more problems with studies.

　　B．Teens get harder to fall asleep with more screen time.

　　C．Teens addicted to screen are likely to be more energetic.

　　D．Teens’ sleep duration has nothing to do with their screen time.

　　解析：选B。推理判断题。通读第一、二段可知，这两段在强调使用电子设备对青少年睡眠的影响。故选B项。其余选项和这两段内容无关。

　　6．By asking questions，the study finds________.

　　A．boys are more likely to chat online than girls

　　B．girls are more frequent on the screen than boys

　　C．teens are attracted by different electronic devices

　　D．teens use the screen for the same purpose

　　解析：选C。细节理解题。根据第三段第二、三句“On average，girls said they spent around five and a half hours a day watching TV or using computers，smartphones or other electronic devices.And boys spent slightly more time in front of a screen—around six and a half hours a day，on average.”可知，青少年使用的电子设备包括电视、电脑、智能手机等，C项正确。

　　7．What does the phrase “nod off” in the fourth paragraph mean?

　　A．Shut off. B．Get excited.

　　C．Focus on.

　　D．Fall asleep.

　　解析：选D。词义猜测题。根据整段内容，尤其是该段第一句中“Any type of screen use during the day and in the hour before bedtime appeared to disturb sleep”可知，无论何种电子设备，在白天或睡前使用似乎都会打扰睡眠。由此可知，“making it more difficult for teenagers to nod_off”意为“使用电子设备会让青少年更难睡着”。故D项与“nod off”意思接近，意为“睡着，打盹”。A项意为“停止，关掉”；B项意为“兴奋起来”；C项意为“集中注意力，关注”，都不符合题意。

　　8．How does Prof Russell Foster feel the study?

　　A．Beneficial.

　　B．Uncaring.

　　C．Doubtful.

　　D．Dissatisfied.

　　解析：选A。推理判断题。根据最后一段Prof Russell Foster所说内容中“This is an important study”可知，他认为这是一项重要的研究。故选A项，意为“有益的”，符合其观点。B项意为“不关心的”；C项意为“怀疑的”；D项意为“不满意的”，都不是Prof Russell Foster的态度。

　　Ⅲ.七选五

　　(2016·河北衡水中学二模)You’re in your 20s，but the 20s are just like any other life stage；they pass by and before you knew it，they are gone.Don’t let them pass by and leave you with regrets.__1__

　　1．Staying an unhealthy relationship

　　Your 20s will play an important role in shaping who you are.__2__If the relationship is not making both of you into a better person，then maybe you should take a step back and ask yourself it’s still worth it.

　　2．Spending money carelessly

　　Buying whatever you want and eating out almost every day may make you feel good at the moment but it will make you poor in the long run.

　　__3__So choose where to spend your money on.Make sure that you spend it on things that will move you forwards your financial goals.

　　3．Sticking to a dead­end job

　　Have you also thought of the time and energy you’re wasting on a job that doesn’t suit your skills，strengths，and interests？If you haven’t figured out yet what your dream job is，then use this stage to find out what it is.

　　Start creating a list of career ideas that you think will suit your strengths and interests then get your feet wet.__4__These steps may not instantly take you to your dream job but it helps build the bridge to get you there.

　　4．Giving up dreams for fear of failure

　　Fear is a powerful emotion.You feel it especially if you’re chasing something that’s bigger than yourself.__5__Whether you dream of traveling the world or starting your own business，don’t let the fear of failure keep you from taking action.

　　The most successful people have too felt the fear but what sets them apart from the rest is that they took action anyway.

　　A．But don’t let it stop you.

　　B．Learn from these common mistakes people in their 20s make.

　　C．If you want to make more money，you can take more jobs at the same time.

　　D．Remember that your financial choices today will make an impact on your future.

　　E．We are whatever we eat and do，so pay attention to our behaviors wherever we are.

　　F．It is the stage that you get to know better what you want for yourself and from a partner.

　　G．Ask people who are in these industries about the job and what needs to be done to take you there.

　　答案： 1～5.BFDGA