1、Period TwoWord power & Grammar and usagePart Language Focus.单词自测1.profession n.职业，行业professional adj.职业的professionally adv.职业地2.radiation n.辐射，放射线radiate v.辐射radiative adj.辐射的3.breakthrough n.突破4.original adj.原来的，起初的；首创的；非复制的originally adv.起初地，原先地5.judgement n.判断力；看法，评价；(法律)判决judge v.判断；评价judge n.裁判
2、.短语默写1.be aware of意识到2.turn out 结果是，证明是3.be similar to 与相似4.be always doing 总是做5.figure out 算出；弄明白6.be/get burnt out 耗尽体力，累垮1.remove v.去除，排除；移开；免除语境感悟(1)(教材P47)The kidneys are the organs that remove waste products from the blood and produce urine.肾是把血液中的废物清除掉并产生尿的器官。(2)He removed the picture and put
3、 it in the drawer.他把这幅画取下来，放到抽屉里。(3)They removed him from his position.他们免除了他的职位。归纳拓展remove from.从中移开/除掉易混辨析remove，move两者都有“移动”之意。(1)remove主要指移动后的“除去，除掉”，是非距离上的移动。(2)move指“挪动，移动，搬迁”等，主要指距离上的移动。即时跟踪用move，remove的适当形式填空The meeting was moved from Shanghai to Hangzhou.She removed the dirty sheet from the
4、 bed.Your desk is crowded with too many unnecessary things.You have to some of them.A.remain B.resist C.remove D.renew答案C解析句意：你书桌上堆了太多没必要的东西。你得清除一些。remove意为“去除，转移，移开”，符合句意。2.breakthrough n.突破，重大进展语境感悟(1)(教材P49)He told me he had had a breakthrough.他告诉我他取得了一个突破。(2)Our soldiers quickly broke through th
5、e enemys defence works.我们的战士很快突破了敌人的防御工事。归纳拓展have/make a breakthrough取得突破break through突破即时跟踪完成句子据说，科学家们将在自然科学方面有突破。It is said that scientists will make/have a breakthrough in natural science.Modern forms of transportation and communication have done much to the isolation of life in Alaska.A.break th
6、rough B.break intoC.break down D.break out答案A解析句意：现代形式的通讯和运输大大突破了阿拉斯加孤立的生活状态。break through突破，突围，符合句意。break into闯入，侵入；break down失灵，失效，停止运转；break out突然发生。3.judgement n.判断力；看法，评价；(法律)判决语境感悟(1)(教材P49)I think we should be cautious and use good judgement when making decisions about cloning.我认为我们在对克隆作出决定时应
7、该谨慎行事，作出正确的判断。(2)If he made a wrong judgement on this matter，hell pay for it.如果他在这件事上作出了错误判断，那么他是要为此付出代价的。(3)In my judgement，the plan is inconsiderate.据我看来，该计划考虑不周。(4)We shouldnt judge a person by his appearance.我们不应该以貌取人。归纳拓展(1)make a judgement on/about.对作出判断in ones judgement依某人看来(2)judge n.法官；裁判员；
8、v.判断；估计；评判judge sb/sth to be.认为某人/物是；把某人/物评价为judge.from/by根据来判断judging by/from.(作状语)根据来判断即时跟踪完成句子他认为它们是他看过的最好的话剧。He judged them to be the best plays he had ever seen.在这样的情况下，他开始怀疑自己的判断。In this case，he began to be sceptical of his own judgement.他拒绝对形势作出评价。He refused to make a judgement on/about the s
9、ituation.从他迷惑的表情可判断，这个问题是十分令人困惑的。Judging from/by his puzzled look，this problem must be quite puzzling.注意：judging by/from用作独立成分，其中的judging不可以换为judged。1.be aware of意识到；觉察到语境感悟(1)(教材P46)They are hardly aware of the uncertain effects of cloning humans.他们几乎没有意识到克隆人类造成的不确定的影响。(2)I didnt become aware of hi
10、s arrival.我没注意到他的到来。(3)I am (well) aware that very few jobs are available.我(很)清楚工作职位非常少。归纳拓展become/get aware of意识到；觉察到make sb aware of/that使某人意识到be aware that/whclause知道；意识到即时跟踪完成句子她没有意识到做错了事。She was not aware of having done wrong.我意识到这不是一个好消息。I am aware that it is not good news.Ordinary woman thoug
11、h she is，she tries every means to make people of the importance of the environment conservation.A.aware B.carefulC.sensible D.awesome答案A2.turn out结果是，证明是语境感悟(1)(教材P46)It could turn out to be a monster!它可能会成为一个怪物！(2)It was cloudy in the morning，but it turned out (to be) fine later.早晨是多云天气，但后来天空放晴了。(3
12、)It turned out that two people got lost in the flood.结果有两人在洪水中失踪了。归纳拓展turn out其后常接to beadj./n./，通常to be可以省略；turn out还有“生产；出席，在场”的意思turn on开(灯)turn off关(灯)turn down调小(音量)；拒绝turn up调大(音量)；出现turn over移交；翻转turn around翻身，转身It turns/turned out that.结果即时跟踪选词填空turn on，turn around，turn out，turn over，turn upH
13、e promised to come today，but he hasnt turned up yet.I ran downstairs and turned on the television.He did not fall asleep，turning over in bed from time to time.The news turned out to be false.Our instructor turned around to go back and turn the lights back on. Tom had to the invitation to the party l
14、ast weekend because he was too busy.A.turn in B.turn downC.turn over D.turn to答案B解析句意：因为太忙，上周末汤姆不得不拒绝了聚会的邀请。turn down拒绝，符合语境。turn in上交；turn over (使)翻转，调转；turn to (使)转向，求助于。3.be/get burnt out耗尽体力，累垮语境感悟(1)(教材P51)Im totally burnt out.我完全累垮了。(2)He left the fire to burn itself out.他让火自己熄灭。(3)Slightly bu
15、rn away hair on lamb skin.轻轻烧去羊皮上的细毛。归纳拓展burn out耗尽体力，累垮；燃尽，烧光burn down烧毁；(火势)减弱burn away烧光，烧掉burn to the ground全部焚毁即时跟踪完成句子这个村庄在战争期间被烧得精光。The village was burned out/to the ground during the war.小心防火，否则它可能烧毁整栋大楼。Be careful with fire，or it may burn down the whole building.Lucy was completely after jo
16、gging in the hot sun all afternoon；she had little energy left.A.kicked out B.burnt outC.handed out D.put out答案B解析句意：露西在骄阳下慢跑了一下午之后累极了，几乎没力气了。be burnt out耗尽体力，累垮。根据题意可知选B项。be always doing.语境感悟(1)(教材P49)He is always working in his lab，trying to figure out all the mysteries.他总在实验室里工作，尽其所能弄明白所有的神秘事件(2)T
17、he boy is always crying.那个男孩总哭。(3)He is always helping others.他常常帮助别人。归纳拓展当always与进行时态连用时，表示反复发生的动作，带有一定的感情色彩，如不满、抱怨、厌恶、赞赏等即时跟踪完成句子我的同桌老是在问我问题。My deskmate is always asking me questions.I didnt like Aunt Lucy，who without warning and bringing us presents.A.always turned up B.has always turned upC.was
18、always turning up D.was always turned up答案C解析always，often，constantly，forever，all the time等副词与现在(过去)进行时连用，表示某种反复发生的动作，往往带有厌恶、不满、责备或赞扬等意味。.单词拼写1.My father is a doctor by profession.2.It is a major breakthrough in cancer research.3.I think you should go back to your original(原来的) plan.4.She showed a la
19、ck of judgement(判断力) when she gave Mark the job.5.Have you made sense whats wrong with your car?.选词填空be aware of，turn out，find out，put in place，figure out1.Most teenagers are not well aware of the danger of playing computer games.2.You should find out the answer for yourself.3.I cant figure out what
20、 hes trying to say.4.I believe that strict law should be put in place and governments should do more to stop human cloning.5.The film turned out to be a great success.完成句子1.The boss decided to dismiss Tom，for he is always telling lies (总是撒谎).2.The door opened and in came(进来了) the headmaster.3.My job
21、 is to teach English/teaching English(教英语).4.In my judgement(依我看)，all of them are to blame.5.Who is that girl that is standing by the window(站在窗户旁的)?.单项填空1. his accent，he must be from Sichuan.A.Judged by B.Judging byC.Judging through D.Judged from答案B解析句意：从他的口音判断，他一定来自四川。judging from/by.从判断，根据判断，符合句意
22、。2.US scientists say they have developed the technology to painful memories without hurting a persons brain and hope it can help those sufferers.A.leave B.remove C.ignore D.separate答案B解析句意：美国科学家们说，他们已经开发出了一项技术可以在不伤害人的大脑的情况下除去痛苦的记忆，并希望这项技术能帮助那些受煎熬的人们。remove除去，符合语境。 leave离开；留下； ignore忽视；separate分开。3.I
23、t has been raining every day so far.I hope tomorrow will fine.A.turn to B.turn upC.turn into D.turn out答案D解析句意：到今天为止天一直在下雨，我希望明天会转晴。turn out结果是，符合句意，故选D。4.The present situation is very complex，so I think it will take me some time to its reality.A.make up B.figure outC.look through D.put off答案B解析句意：现
24、在的情形太复杂了，所以我要花点时间弄清楚真实情况。make up组成，弥补；look through看穿，浏览；put off推迟；figure out想出来，弄清楚，故B项符合题意。5.At the graduation ceremony，our headmaster required us to raise our competitive in modern society.A.spirit B.intentionC.awareness D.ambition答案C解析句意：在毕业典礼上，我们的校长要求我们提高在现代社会里的竞争意识。awareness认识，意识，符合句意。spirit精神；
25、intention打算，意图；ambition志向，雄心。Part Grammar过去分词一、过去分词的句法功能1.作定语过去分词作定语，表示动作或是在谓语动词所表示的动作之前发生，或是没有一定的时间性。过去分词作定语时，其逻辑主语就是被其所修饰的名词。及物过去分词作定语，与被修饰词之间是被动关系，不及物动词的过去分词作定语表示动作的完成。Dolly the sheep is the worlds first cloned mammal.多利羊是世界上第一个被克隆的哺乳动物。We should drink boiled water.我们应该喝开水。A water and soil conser
26、vation project set up in 1989 resulted in farmers replacing their crops with trees or grass.启动于1989年的一个水土保持项目使得农民退耕还林或退耕还草。The carbon produced when we breathe is much less than that produced by cars.我们呼吸产生的碳远远少于汽车产生的碳。There are some fallen leaves on the ground.在地上有一些落叶。(不及物动词fall的过去分词形式fallen 不表示被动，
27、只表示动作的完成)注意：单个的过去分词作定语，往往放在被修饰的名词之前；过去分词短语作定语，一般要放在被修饰词的后面。Because of pollution，the caught fish were not fit to eat.由于污染，捕到的鱼不适宜吃。 2.作表语过去分词作表语，表示主语的性质、特征或状态。过去分词作表语时，被动意味很弱，主要表示动作的完成和状态。此时的过去分词相当于一个形容词，其后常不跟by短语。The glass is broken.玻璃杯碎了。Our classroom is crowded.我们的教室很拥挤。The ground is covered with
28、snow.地上覆盖着雪。学法点拨表示人的心理、情绪变化的一些过去分词形式(surprised，disappointed，delighted，excited，pleased 等)及其他一些过去分词(dressed，drunk，devoted，lost，known，married，bent，recovered，separated等)常可用作表语，表示状态。其中有些只表状态，毫无被动意义。My grandfather was delighted to hear I overcame the difficulty.我祖父听到我克服了困难的消息后感到很高兴。Those days are passed a
29、nd gone.那些日子一去不复返了。He is dead drunk.他喝得烂醉。注意：被动语态的过去分词，动作意味很强，句子主语为动作的承受者，后常跟“by动作的执行者”。The new tissues and organs are used to cure diseases by doctors.这些新的组织和器官被医生用来治疗疾病。A great number of trees were planted by volunteers to stop the wind from blowing the soil away.为了阻止风把泥土吹走，志愿者们栽了大量的树。3.作宾语补足语(1)过
30、去分词作宾语补足语，其逻辑主语是句子的宾语。宾语与宾语补足语之间是被动关系。The villagers had many trees planted then.村民们那时种了很多树。In the morning people woke up and found the world outside their houses completely changed.早上人们一醒来就发现屋外的世界完全变了样。(2)能用过去分词作宾语补足语的动词大致可分为以下三类：make，get，have，keep等使役动词。此类动词使用最广泛。We need to get the machine repaired
31、at once as we want to use it in our experiment tomorrow.因为我们明天做实验想用这台机器，所以我们需要立即找人把它修好。The thief kept his money hidden in his shoes.那个小偷把钱藏在鞋子里。see，hear，feel 等表示感觉和心理状态的动词。The mother cant stand seeing her baby left alone at home.那个母亲不能忍受她的孩子被独自一人留在家里。like，want，wish，order 等表示希望、要求、命令等意义的动词。The manage
32、r doesnt like such questions discussed at the meeting.经理不喜欢在会上讨论这样的问题。(3)with 复合结构，即“with复合宾语”结构，它是由“with宾语(名词或代词)非谓语动词(分词、动词不定式)、介词短语、形容词或副词等”构成的一种结构。当宾语补足语是过去分词时，表示宾语与宾语补足语之间是被动关系。with复合结构通常在句子中作状语，也可以作定语，修饰前面的名词。With all the work done，we went to play basketball.所有的工作都做完了，我们就去打篮球了。The fellow stood
33、 there with his hands crossed.那个家伙两手交叉，站在那里。The farmers have a good harvest with all the crops got in.庄稼都收割了，农民们有了一个好收成。With a lot of work to do，she doesnt have time to go to the cinema.有很多工作要做，她没有时间去看电影。With the good teacher teaching us English，we had no trouble passing the exam.有这位优秀的老师教我们英语，我们通过考
34、试没有困难。Do you know the man with a book in his hand?你认识手里拿着一本书的那个人吗？Throw away the container with its cover sealed.把封着盖子的那个容器扔掉。4.作状语过去分词作状语，其逻辑主语是句子的主语，与主语是被动关系。过去分词作状语可以表示时间、原因、条件等。(1)作时间状语Seen from the moon，the earth，with water covering about 70% of its surface，appears to be a blue ball.从月球上看，被水覆盖了
35、大约70%表面的地球就像是一个蓝色的球体。(2)作原因状语Frightened by the thunder and lightning in the night，the girl did not dare to sleep alone in her room.因为那个女孩被晚上的电闪雷鸣吓坏了，所以她不敢独自在她的房间里睡觉。(3)作条件状语Given a chance，I would prove myself.给我一个机会，我会证明自己。(4)作伴随状语The boy sat at the table buried in his homework.那个男孩坐在桌旁埋头做作业。注意：独立主格
36、结构：当过去分词作状语时，前面再加逻辑主语，句子的主语就不再是过去分词的逻辑主语，这种带逻辑主语的过去分词实际上属于独立主格结构。The signal given，the bus started.信号一发出，公共汽车就开动了。(the signal 是give的逻辑主语，句子主语the bus不是give的逻辑主语)Her head held high，she went by.她把头昂得高高地走了过去。(her head 是hold的逻辑主语，句子主语she 不是hold的逻辑主语)二、过去分词作状语可以转换成相应的状语从句(1)过去分词作时间状语可以转换成时间状语从句When given a
37、 medical examination(When you are given a medical examination)，you should keep calm.当你做体检时，你应该保持镇定。(2)过去分词作原因状语可以转换成原因状语从句Depressed(Since he was depressed)，he went to see his elder sister.他感到沮丧，就去找他姐姐了。(3)过去分词作条件状语可以转换成条件状语从句Grown in rich soil(If they are grown in rich soil)，these seeds can grow fas
38、t.如果种在肥沃的土壤里，这些种子能长得很快。注意：过去分词作伴随状语可以转换成并列谓语或并列句。They came in，followed by some children.(They came in and were followed by some children.They came in and they were followed by some children.)他们进来了，后面跟着一些孩子。三、现在分词式形容词与过去分词式形容词的区别英语中有很多与感觉有关的及物动词，其现在分词式形容词表示主动意义，即“令人有某种感觉”，现在分词式形容词与中心词构成主动关系；其过去分词式形容词
39、含有被动意味，即“人被引起某种感觉”。如：moving(令人感动的)和moved(受感动的)；frightening(吓人的)和frightened(受惊吓的)；pleasing(令人高兴的)和pleased(高兴的；满意的)；encouraging(令人鼓舞的)和encouraged(受鼓舞的)；exciting(令人兴奋的；激动人心的)和excited(兴奋的；激动的)。现在分词式形容词多用来指事或物，而过去分词式形容词多用来指人、人的声音或表情。He was deeply moved by the moving story.他被那个动人的故事深深地感动了。.用所给词的适当形式填空1.He
40、 is now talking with his mother，trying (try) to persuade her to allow him to go out.2.My sister is now working in an international corporation，known (know) as 3M.3.The cloning technology，intended (intend) to cure some diseases，is sometimes misused.4.The old man lay trapped (trap) under the building
41、ruins for quite a long time.5.To sum (sum) up，this was a disappointing performance.6.Judging (judge) by what he said，I think it unlikely that hell be able to support your application.7.With great efforts focused (focus) on the conservation project，the number of some rare animals is steadily increasi
42、ng.8.Nowadays people separate their waste to make it easier to be recycled (recycle).9.Yesterday a retired (retire) scientist gave us a lecture，who is now in his seventies.10.Having lived (live) in it for a long time，he is now very familiar with the city.单项填空1.Jim has retired，but he still remembers
43、the happy time with his students.(2017北京高考)A.to spend B.spendC.spending D.spent答案D解析句意：吉姆已经退休了，可是他仍然记得与他的学生们一起度过的快乐时光。spend与被修饰的名词time之间为逻辑上的被动关系，故用动词ed形式作后置宾语。故选D。2. over a week ago，the books are expected to arrive any time now.(2016北京高考)A.Ordering B.To orderC.Having ordered D.Ordered答案D解析句意：那些书一周前
44、已经预定了，应该随时会到达。 order与其逻辑主语the books之间为逻辑上的被动关系，故选D。3.In art criticism，you must assume the artist has a secret message within the work.(2016江苏高考)A.to hide B.hidden C.hiding D.being hidden答案B解析句意：在艺术评论中，你得假设艺术家藏了一个秘密信息在作品中。句中message与hide之间是被动关系，故要用过去分词作后置定语。4.Much time sitting at a desk，office workers
45、 are generally troubled by health problems.(2015江苏高考)A.being spent B.having spentC.spent D.spending答案C解析句意：大部分时间坐办公桌，办公室职员通常被健康问题所困扰。time 与spend之间构成被动关系，故用过去分词形式。5. in the poorest area of Glasgow，he had a long，hard road to become a football star.(2015重庆高考)A.Being raised B.RaisingC.Raised D.To raise答
46、案C解析句意：生长在格拉斯哥最贫困的地区，他成为一名足球明星的道路漫长而艰难。raise与主语he是被动关系，因此排除B、D两项；A项是现在分词的被动式，表示正在发生，故排除A项。6.Back from his twoyear medical service in Africa，Dr.Lee was very happy to see his mother good care of at home.(2015陕西高考)A.taking B.takenC.take D.be taken答案B解析句意：李博士在非洲进行了两年的医疗服务，回来后看到他的母亲在家里被照顾得很好，他很高兴。his mot
47、her与take good care of之间是被动关系，故选B。7.Video games can be a poor influence if in the wrong hands.(2015湖南高考)A.to leave B.leaving C.leave D.left答案D解析句意：如果落在不合适的人的手中，电子游戏就会有一个很坏的影响。leave与video games之间是被动关系，故用过去分词。8.If for the job, youll be informed soon.(2015北京高考)A.to accept B.acceptC.accepting D.accepted答
48、案D解析句意：如果你被录用做这份工作的话，你将会很快得到通知。accept与you之间是被动关系；if之后省略了主语和be动词，补充完整为：If you are accepted for the job，故选D。9.The producer comes regularly to collect the cameras to our shop for quality problems.(2014重庆高考)A.returning B.returnedC.to return D.to be returned答案B解析句意：厂商定期到我们店里回收因质量问题而被退的相机。camera与return之间是
49、被动关系，故用过去分词作后置定语，表示被动和完成。故选B。10.Children，when by their parents，are allowed to enter the stadium.(2014湖南高考)A.to be accompanied B.to accompanyC.accompanying D.accompanied答案D解析句意：在父母的陪同下，孩子们才被允许进入该体育馆。因为children和accompany之间是被动关系，故应用过去分词accompanied。.词形变换1.None of us are hopeless(hope) and we all have th
50、e power within ourselves to recover.2.Suddenly，a man driving a motor car seized the girls bag and took it away，disappearing (appear) into the darkness.3.One of the powerful (power) actions the government has taken is to knock down the illegal (legal) buildings to restore the beauty of the city.4.If
51、you get asked uncomfortable (comfort) questions，theres always a polite way of refusing to answer.5.If we judge according to our own cultural habits，we may make the mistake of “reading” the other person incorrectly (correct).单项填空1.The pilot asked all the passengers on board to remain as the plane was
52、 making a landing.A.seat B.seatingC.seated D.to be seating答案C解析过去分词seated在此表示状态，作remain的表语。2.While waiting for the opportunity to get ，Henry did his best to perform his duty.A.promote B.promotedC.promoting D.to promote答案B解析句意：当等待机会升职的时候，Henry尽最大努力履行职责。he和promote是被动关系，所以用过去分词形式。3.The manager was sati
53、sfied to see many new products after great effort.A.having developed B.to developC.developed D.develop答案C解析句意：经理很满意地看到在做出巨大的努力之后，许多新产品被开发出来。develop与宾语products之间为被动关系，故使用过去分词作宾补。4.When a new disease breaks out，experts must what to do in the fastest way.A.figure out B.take outC.pick out D.sort out答案A解
54、析句意：当一种新的疾病爆发的时候，专家必须用最快的方式想出解决方法。figure out想出，符合句意。take out取出；pick out挑选出；sort out分类。5.The island， to the mainland by a bridge，is easy to go to.A.joining B.to joinC.joined D.having joined答案C解析join与逻辑主语the island之间为被动关系，故使用过去分词，故选C。6.It was several minutes before I was of what was happening.A.know B
55、.realize C.wear D.aware答案D解析句意：过了几分钟我才意识到发生了什么。be aware of 意识到。A、B、C三项均为动词，不符合语法规则。7.Film has a much shorter history，especially when such art forms as music and painting.A.having compared to B.comparing toC.compare to D.compared to答案D解析逻辑主语film与compare to之间为被动关系，故用过去分词。8.She likes everything to be b
56、efore she starts work.A.in store B.in placeC.in doubt D.in need答案B解析句意：她喜欢在开始工作前把一切都准备好。in place准备就绪。根据题意，故选B。9.I intended him，but I didnt have his number on me.A.to call B.callingC.to have called D.to be calling答案C解析intended to have done sthhad intended to do sth表示“原想做某事而未能做成”，故选C。10. in her best s
57、uit，the girl tried to make herself at the party.A.Dressed；noticed B.Dressing；noticingC.Dressed；noticing D.Dressing；noticed答案A解析dressed in意为“穿着”，在句中作状语；make oneself noticed意为“使自己被(别人)注意”，noticed作宾语补足语。.阅读理解AAs more people use smart phones to pay bills and store personal information，strict password sa
58、fety has become more important than ever.A new study shows that freeform gesturessweeping fingers in shapes across the screen of a smart phonecan be used to unlock phones.These gestures are less likely to be observed and reproduced by others than traditional typed passwords.“All that it takes to ste
59、al a password is a quick eye，” said one of the researchers of the study.“With all the personal information we have on our phones today，improving their safety is becoming increasingly necessary.” In developing a safe solution to this problem，the researchers studied the practicality of using freeform
60、gestures.With the ability to create any shape in any size and location on the screen，the gestures were popular as passwords.Since users create them without following a template(标准)，the researchers predicted these gestures would allow for greater complexity.The researchers carried out a createtestret
61、est experiment where 63 people were asked to create a gesture，recall it，and recall it again 10 days later.The gestures were captured(采集) on a recognizer system designed by the team.Using this data，they tested the complexity and accuracy of each gesture using information theory.The result of their an
62、alysis is that people are favorable to use freeform gestures as passwords.To put their analysis into practice，the researchers then had seven students in computer science and engineering，each with considerable experience with touchscreens(触摸屏)，attempt to steal a freeform gesture password by observing
63、 a phone user secretly.None of them were able to copy the gestures with enough accuracy.The gestures appear to be extremely powerful against attacks.Though the testing is in its early stage and widespread adaptation of this technology is not yet clear，the research team plans to continue to analyze t
64、he safety and management of freeform passwords in the future.They believe this is the first study to explore freeform gestures as passwords.They will soon publish their findings.1.What can we learn about freeform gestures?A.They are improving mobile safety in a way.B.Users will have to make use of s
65、imple gestures.C.They will never be copied by others.D.Users must move their fingers in fixed shapes.答案A解析细节理解题。根据第一段第一句“.store personal information，strict password safety has become more important than ever.”可知，freeform gestures可以使手机更安全。故选A。2.The experiment in Paragraph 4 is to test of freeform ges
66、tures.A.template B.applicationC.accuracy D.safety答案D解析推理判断题。根据第四段倒数第二句“None of them were able to copy the gestures with enough accuracy.”可知，这些盗取手势密码的人都没有准确进入手机，由此可知手势密码的安全性。故选D。3.According to the text，the researchers think that .A.it is easy to steal any password with a quick eyeB.better ways of set
67、ting passwords should be developedC.people had better not use smart phones to pay billsD.personal information should not be stored in a phone答案B解析细节理解题。根据最后一段的研究团队不满足现在的研究成果可知，应该发展确定密码的最好办法。4.The main purpose of the text is to .A.advise people to use freeform gesturesB.discuss whether smart phones a
68、re safeC.talk about the practicality of passwordsD.introduce the study of a new password答案D解析写作意图题。根据文章提到的科研人员对智能手机密码的研究可知，本文介绍了一种新型密码方式。BThe Utah study shows promise for helping severely paralyzed patients communicate.A group of microelectrodes were placed on a patients brain.In a first step toward
69、 helping severely paralyzed people to communicate more easily，Utah researchers have shown that it is possible to translate recorded brain waves into words，using a grid of electrodes placed directly in the brain.Although they have only done it with one person and individual words can only be identifi
70、ed with accuracy in tests 50% of the time，the study provides a ray of hope for people who can now communicate only by rolling their eyes，or moving a fingertip.“This technology.based on instruments that have been used in humans for 50 years now，” said Bradley Greger.“Well be able to translate more wo
71、rds and，in two or three years get approval for a real test in paralyzed patients，” he said.The instrument could benefit people who have been paralyzed and are “locked in”.Researchers have made great improvement in developing ways for patients to move a computer cursor or even a manmade arm using ele
72、ctrodes implanted in the brain.But researchers have been unwilling to implant electrodes in the speech centers for fear of causing serious damage.Some researchers have been attempting to “read” speech centers in the brain using electrodes placed on the scalp(头皮).But such electrodes are so far away f
73、rom the electrical activity.They instead use arrays of microelectrodes placed in contact with the brain，but not implanted.The arrays were placed on the brain of a volunteer patient.The team tested 10 words，such as “yes”，“no”，“hungry” and “thirsty”，that a patient might need.The volunteer spoke each w
74、ord 31 to 96 times while the researchers measured brain waves.In the best case，the researchers could correctly distinguish between two words，such as “yes” and “no”，90% of the time.But when trying to distinguish among all 10 words，their best accuracy was 48%.Greger believes the accuracy can be improv
75、ed by using more electrodes，and the team is now working on it.【语篇解读】本文是一篇说明文。对于那些因为中风等导致瘫痪，虽然有意识但无法说话的病人来说，犹他州科研人员的最新科研成果能让他们与人交流了。5.In the Utah study，a group of microelectrodes is placed in a patients brain to .A.help severely paralyzed patients stand up again.B.help severely paralyzed patients rel
76、ieve their physical painsC.help severely paralyzed patients recover their reasoning abilityD.help severely paralyzed patients communicate better with others答案D解析细节理解题。从文章第二段的“translate recorded brain waves into words”可得出答案。6.The underlined words “locked in” in Paragraph 5 probably mean .A.being lock
77、ed in a house and cannot go outB.their body cant move because of severe paralyzationC.having clear awareness but being unable to communicateD.their brains being out of working because of paralyzation答案C解析词义猜测题。根据前文可知，该仪器用来帮助那些身体瘫痪，虽然有意识但不能用语言表达自己思想的人。所以C项正确。7.Compared with 16 microelectrodes，instrum
78、ents with 32 microelectrodes would be .A.faster B.weakerC.less useful D.more accurate答案D解析推理判断题。从文章最后一段的“Greger believes the accuracy can be improved by using more electrodes”可以推断D项正确。8.What would be the best title for the passage?A.The Advantages of MicroelectrodesB.The Working Theories of MicroelectrodesC.Electrodes Translate Brain Waves into WordsD.The New Study on Severely Paralyzed Patients答案C解析主旨大意题。本文主要讲述了新的科研成果，一种能把病人大脑的活动“翻译”成大家能读懂的语言的微电极。
