1、Unit 20 New Frontiers课时作业7Lesson 1Futurology.单词拼写1The government lays stress on _(福利) work.2Keep a pencil and paper _(手边的)3He is dying of _(饥饿)4The two parties have been in _(冲突) since the election.5We offer free _(技术上的) support for those buying our software.6How can I get this _(污迹) out?7A man is _
2、(援助) police with their inquiries.8His only _(娱乐) are drinking beer and working in the garden.9This company is one of the largest _(企业) of its kind.10They are fighting for the _(平等) of women.答案1welfare2.handy3.starvation4.conflict5technical6.stain7.assisting8.recreations9enterprises10.equality.用适当的介、
3、副词填空1The children are playing cards_fun.2This story is based_a small boy living in a small village.3The farmers live_rice.4Lets carry_the plan without delay.5The man died_anger.6The man exposed_the sunlight too much and got sunburnt.7He used_his money and had to returned home.8The police are looked_
4、the case where the man was murdered.9The planet is suitable_living.10The rain continued falling for_least two hours.答案与解析1forfor fun 为了开心。2onbe based on 以为依据。3onlive on 以为生。4outcarry out 执行。5ofdie of anger 死于生气。6toexpose to 暴露给。7upuse up 用完。8intolook into 调查。9forbe suitable for 适合。10atat least 至少。.用
5、所给词的适当形式填空1The girl has a vivid_(imagine)2He made an accurate_(predict)3The weather is_(suit) for the growth of the crops.4They treated the blacks with_(equal)5The poor old man died of_(starve)6The teacher gave_(instruct) to the students.7The_(end) homework made her bored.8To stay_(health), he took
6、up regular exercise.9Its _(hand) to live in the centre of the city.10_(short) after I woke up, the rain stopped.答案1imagination2.prediction3.suitable4.equality5starvation6.instructions7.endless8.healthy9handy10.Shortly.单句语法填空1Over the years, we_(make) great achievements in science.2The former is more
7、 expensive than the_.3At this time next Sunday, we_(have) fun on the beach.4By the end of next month, we_(complete) the project.5Science made_possible for us to live a longer life.6_(go) for a walk after supper is good for our health.7This is the only place_I want to visit.8I cant imagine_my future
8、will be like.9Can you imagine_(live) on the moon?10I am interested in the film_(base) on a village leader.答案与解析1have madeover the centuries 与现在完成时连用。2latterthe former 与 the latter 对应使用。3will be havingat this time next Sunday 与将来进行时连用。4will have completedby the end of next month 与将来完成时连用。5itit作形式宾语，代
9、替后面的不定式短语。6Going动名词作主语。7that先行词被 the only 修饰，定语从句中缺宾语，故用 that 引导。8whatwhat 引导宾语从句，在从句中作宾语。9livingimagine 后跟动名词作宾语。10basedbased on “以为依据”，在句中作定语。.语法填空Over the centuries, people _1_(wonder) about the future all the time. Some like to imagine _2_the world will be like in the future._3_write about the f
10、uture themselves. In the 18th and 19th century, especially the _4_， the most common theme in science fiction novels was the future. But for some people, _5_(think) about future is not just for fun. They plan the future of the world for a living.The experts will be discussing the _6_(end) possibiliti
11、es of the future. By the year 2025, no one will die of _7_(starve) because there will be food for everyone. No one will have to live _8_welfare. People will live together in peace and equality.By the year 2030, the _9_(develop) in biochemistry and medical science will have made _10_possible for us t
12、o live for at least 150 years.答案与解析1have wonderedover the centuries 与现在完成时连用。2whatwhat 引导宾语从句，在从句中作宾语。3Otherssome.others 对应使用。4latterthe latter 后者。5thinking动名词作主语。6endless形容词作定语，endless 无休止的。7starvationdie of starvation 饿死。8onlive on 靠为生。9development名词作主语。10itit 作形式宾语，代替后面的不定式。.阅读理解Would it surprise
13、 you to learn that, like animals, trees communicate with each other and pass on their wealth to the next generation? UBC Professor Simard explains how trees are much more complex than most of us ever imagined. Although Charles Darwin thought that trees are competing for survival of the fittest, Sima
14、rd shows just how wrong he was. In fact, the_opposite_is_true:_trees survive through their cooperation and support, passing around necessary nutrition “depending on who needs it”. Nitrogen (氮) and carbon are shared through miles of underground fungi (真菌) networks, making sure that all trees in the f
15、orest ecological system give and receive just the right amount to keep them all healthy. This hidden system works in a very similar way to the networks of neurons (神经元) in our brains, and when one tree is destroyed, it affects all. Simard talks about “mother trees”， usually the largest and oldest pl
16、ants on which all other trees depend. She explains how dying trees pass on the wealth to the next generation, transporting important minerals to young trees so they may continue to grow. When humans cut down “mother trees” with no awareness of these highly complex “tree societies” or the networks on
17、 which they feed, we are reducing the chances of survival for the entire forest. “We didnt take any notice of it，” Simard says sadly. “Dying trees move nutrition into the young trees before dying, but we never give them chance.” If we could put across the message to the forestry industry, we could m
18、ake a huge difference towards our environmental protection efforts for the future. 1. The underlined sentence “the opposite is true” in Paragraph 2 probably means that trees _.A. compete for survivalB. protect their own wealth C. depend on each otherD. provide support for dying trees 2. “Mother tree
19、s” are extremely important because they_. A. look the largest in size in the forestB. pass on nutrition to young treesC. seem more likely to be cut down by humansD. know more about the complex “tree societies” 3. The underlined word “it” in the last paragraph refers to_.A. how “tree societies” workB
20、. how trees grow old C. how forestry industry developsD. how young trees survive 4. What would be the best title for the passage? A. Old Trees Communicate Like Humans B. Young Trees Are In Need Of Protection C. Trees Are More Awesome Than You Think D. Trees Contribute To Our Society 答案与解析本文为说明文，题材为科
21、普知识类。本文介绍了森林里的树木是如何互相依赖而生存的。1C词义猜测题。画线句子的前一句“.that trees are competing for survival of the fittest，.”指出树木为了生存互相竞争，画线句子认为这一观点的对立面才是正确的：树木之间是互相依赖和支持的关系。因此本题选择C项。2B细节理解题。根据文章第四段第二句“.how dying trees pass on the wealth to the next generation, transporting important minerals to young trees.”和第五段第二句“Dying
22、trees move nutrition into the young trees before dying.”可以看出本题应选择B项。3A词义猜测题。倒数第二、三段一直在围绕着树木之间如何相互依靠、互相传递养料进行说明，因此it指的是：群体树木之间是如何相互作用的，故答案为A项。4C主旨大意题。本文围绕树木这个群体是如何通过相互依靠来生存的进行了解释说明，A项中的 old trees 和 B项中的 young trees 都偏离了主题，故排除。文章只描述了树木本身这个群体，并没有强调树木为人类社会作出的贡献，因此排除D项。C项中的 awesome (令人惊叹的)是对树木如何生存做出的一个很高
23、的评价，故选择C项。.阅读填句Dont you just love ice skating every winter? I am sure that since winter is approaching, your skates are set to come out, just waiting to be used. Impress your friends with a new trick on how to iceskate backwards with the help of these tips.Stand straightThe first thing that you need
24、 to do is stand straight. _1_， if you feel that you are falling backwards. Dont worry; this happens to all.Confidence is what you needThe most important step while learning how to skate backwards is having enough confidence in yourself and in what you are doing. How can you achieve this? By practice
25、. One of the important ice skating tips and techniques is that if you feel that you are losing your balance, then scissor (做剪式运动) your skates. _2_.Maintain speedTry sculling with one skate while rolling in a straight line with the other. _3_. Now bring the skate which you are using to scull, and the
26、n again, repeat the same process. Make sure that you put most of your weight on the skate which is moving straight and not the one with which you are sculling. Now, try the same thing using the other foot._4_Once you are confident that you can scull with either foot, the next thing that you have to
27、do is increase your speed. Try some of your own tricks now. Scull with either foot or with both at the same time.Scull and be awareWhile you keep one foot straight, keep sculling with the other. You can do that with both feet at the same time. _5_， but dont get so involved that you dont see where yo
28、u are going. If you are not watching your back, you might just bang against something or someone.A. That is, keep pushing yourself backwards with an outwards stroke(滑动)B. While going backwards, just get used to the feeling of moving backwardsC. Keep practicing this till you are confident about itD.
29、Increase your speed nowE. One must be brave enough to learn to iceskate backwardsF. Concentrate on what you are doingG. Just put your chin up and slightly bend your knees答案与解析1G本段标题为“站直了”。“扬起下巴，微屈双膝”为站直的姿势。2C根据小标题 Confidence is what you need 自信是你所需要的，得出 Keep practicing this till you are confident ab
30、out it.不断练习直到有信心做好。3A本句是对上句的解释。4D本空为小标题。因为本段与速度有关，所以选Increase your speed now。5F根据 but dont get so involved that you dont see where you are going 可知选F。.语法填空Last year, my brother and I went to Miami for a vacation. Some of my friends who had been there before said_1_ was a wonderful holiday destinatio
31、n. Before we went, we had planned for months. When the day came, we were ready.After our plane landed, we went to the hotel. We had made our reservation six months_2_ (early), but the man at the front desk said there had been a mistake. We _3_ (tell) that our rooms hadnt been reserved for that week,
32、 _4_for the week after. I didnt understand_5_ this would happen and my credit card had already been charged _6_ the reservation. Whats worse, the hotel had been fully booked. When we were wondering what to do, the manager came out. She was _7_ (surprise) helpful. She apologized for the mistake and g
33、ave us a spare VIP room on _8_ top floor. We had never stayed in such an amazing room, and we werent charged extra.The next day, my brother and I went to the beach _9_ we watched some people play volleyball. We got a little _10_ (sunburn), but the day had been so relaxing that we didnt mind.答案与解析1it
34、it 指代 Miami。2earliersix months earlier 六个月前。3were told因为叙述的是过去发生的事情，we 与 tell 之间是被动关系，所以本句使用一般过去时的被动语态。4butnot.but.不是而是。此处表示句意的转折。5why/how我不理解为什么会发生这样的事。/我不理解这样的事是如何发生的。6forcharge.for.为收(费)。7surprisingly此处修饰形容词 helpful，所以应使用 surprise 的副词形式 surprisingly。8thethe top floor 顶层。9where因为先行词是地点名词，关系词在定语从句中
35、作状语，所以填 where。10sunburnt/sunburnedget sunburnt/sunburned晒伤。.短文改错I was taking a train to Londons Victoria Station. I had noticed that the carriage was noise and filled with people.Before long, a train inspector comes to check our tickets. A passenger realized he couldnt find his ticket but became qui
36、te upset. Then everyone in the carriage began searching the ticket, which was eventually found under a seat several rows from his owner. The person who found a ticket smiled with pleasure at his success.No one in the carriage had previous spoken to or even noticed the ticketowner before. Yet they ha
37、d so quickly offered the strangers their help. If we could show concern to others on need, the world would be a better place to live in.答案I was taking a train to Londons Victoria Station. I noticed that the carriage was and filled with people.Before long, a train inspector to check our tickets. A pa
38、ssenger realized he couldnt find his ticket became quite upset. Then everyone in the carriage began searching the ticket, which was eventually found under a seat several rows from owner. The person who found ticket smiled with pleasure at his success. No one in the carriage had spoken to or even noticed the ticketowner before. Yet they had so quickly offered the their help. If we could show concern to others need, the world would be a better place to live in.
