高中英语新教材必修3unit1Section Ⅲ随堂检测及课堂作业(含答案解析)

Section D Reading for Writing&AssessingYour Progress必备知识基础练Ⅰ.单词拼写1.Global warming refers to an average increase in the Earth’s temperature which leads to (气候) change.2.He is a (和善的) man,who is liked by all the people around him.3.Our company has produced a new kind of (材料) which remains stainless no matter what you will spill on it.4.It doesn’t matter what you wear,so long as you look (整洁的) and tidy.5.After they got the present job,the couple (定居) down in that country.6.The old teaching building has been pulled down and a new one is under (建造).7.This drink doesn’t (含有) any alcohol,so you can drink it if you drive a car.8.Each (物品) in the store has a bar code or a product number.Ⅱ.短语填空(注意动词的适当形式)1.Lots of our friends are coming:Anne,Ken and George,.2.He’s one of the few Westerners who have experienced the conditionsthere.3.The course is two parts:class time for learning traffic regulations and driving time to practice driving.4.The country over 100,000,most of whom are farmers.5.He handled the test sample ,because he was afraid of spoiling it.6.The research group produced two reports the survey,but neither contained any useful suggestions.Ⅲ.完成句子1.他躺在草地上,眼望天空。

Unit 3 Section Ⅲ Learning about Language & Using Language Ⅰ.词汇知识1．p (n.)a cloth bag filled with soft material that you put your head on when you are sleeping2．w (n.)the soft thick hair that sheep and some goats have on their body3．f (n.)hot bright burning gas that you see when something is on fire4．c (n.)a large natural hole in the side of a cliff or hill，or under the g round 5．r (adj.)someone or something can be trusted or depended on6．v (n.)what you think or believe about something答案：1.p illow 2.wool 3.flame 4.cave 5.reliable 6.viewⅡ.重点短语1．相反，代替2．放弃；停止3．感觉像……4．穿着5．照常6．醒着7．举起，张贴，悬挂8．在午夜9．留下10．向某人问好答案：1.instead of 2.give up 3.feel like 4.be dressed in5．as usual 6.stay awake 7.put up 8.at midnight9．leave behind 10.say hello to sb.Ⅲ.必背句型1．A d etermin ed person always tries to finish the job，.不管困难有多大，一个有决心的人总是尽力完成工作。

Section_ⅢGrammar —宾语从句和表语从句语法图解探究发觉①Oliver believes that with a million pound bank note a man could survive a month in London.②It is Henry Adams, an American businessman, who is lost in London and does not know what he should do.③I wonder, Mr.Adams,if you'd mind us asking a few questions.④I didn't know whether I could survive until morning.⑤That's why we've given you the letter.⑥It looks as if it is going to rain.[我的发觉](1)以上6个句子中的黑体部分都是主句中的从句，这些从句在词性上相当于一个名词，故被称作名词性从句。

(2)①②③④中的黑体部分属于宾语从句。

(3)⑤⑥中的黑体部分属于表语从句。

一、名词性从句1．概念：在主从复合句中，相当于名词的从句被称为名词性从句。

2．分类：名词性从句包括：主语从句、宾语从句、表语从句和同位语从句。

3．连接词项目连接词意义在句中的功能从属连词that 无意义不充当成分whether/if 是否不充当成分连接代词who(ever) (无论)谁主、宾、表whose 谁的定what(ever) (无论)什么主、宾、表、定which(ever) (无论)哪个主、宾、定续连接副词when(ever) (无论)何时时间状语where(ever) (无论)何地地点状语how(ever) (无论)怎么方式状语why 为什么缘由状语4．留意事项(1)名词性从句要用陈述语序；(2)主从句的时态要基本呼应，有时需用虚拟语气；(3)留意某些连接词的特殊用法(见后)。

课时作业(三) Unit 1 Section ⅢDeveloping ideas &Presenting ideas层级一语言知识训练Ⅰ.单词拼写1．The money was collected for a s________ (特定的) purpose.2．His parents nodded, and they watched as he walked out of s________ (视野) into the crowds of hundreds of students and parents.3．It is three years since he g________ (毕业) from Harvard.4．The trend, then, was toward the “penny paper”—a term r________ (提到) to papers made widely available to the public.5．Being liked creates o________ (机会) for learning and for new kinds of life experiences that help somebody gain an advantage.6．Maybe I would be f________ (害怕的) at seeing this if I were a meat eater.7．I f________ (认为) that if I took the night train, I could arrive in Beijing in the morning.8．Students should read the list with their parents/carers, and s________ (选择) two activities they would like to do.9．They are s________ (奋斗) to build a stronger and richer country.10．This p________ (特定的) price is valid for departures between April 1 and April 30.Ⅱ.单句语法填空1．They are looking forward to ________ (send) to the lecture by the famous professor.2．The past scenes are still in the old red­army soldier's ________ (memorize) and always make him excited.3．I struggled ________ (control) my temper and didn't burst out in front of many people.4．After ________ (graduate) , she worked to help her sisters and brotherspay for their schooling.5．It was a really ________ (frighten) experience. Afterwards everybody was very shocked.6．A team of researchers trained three Rhesus monkeys to associate 26 symbols consisting of numbers and ________ (select)letters with 0～25 drops of water or juice as a reward.7．I'm not sure who is ________ (frighten), me or the female gorilla that suddenly appears out of nowhere.8．The company awarded Mary a prize for her excellent ________ (perform) in her work.9．Students then have an opportunity ________ (improve) their products.10．I've never ________ (exchange) words with those moms beyond small talk, but they wanted to help.Ⅲ.课文语法填空I graduated from my high school last June and am about 1.________ (go) to college. But now I feel as if high school 2.________ (be) only yesterday!The impression of my first getting to school is Orientation Day, which was really3.________ (help) for new students. At that time I made some new friends so thatI just kept an open mind.I had a chemistry test right at the end of the 4.________ (one) week. At the sight of the test paper I was frightened. But I 5.________ (figure) I'd better just go all out to do it. I believed that if I failed this time, the next time I could fail 6.________ (well) . There is another thing that impressed me greatly.7.________a member of the school volleyball team, though I wasn't selected for the end­of­year 8.________ (compete) , I realized I joined the team for the love of the sport, not just about winning. I kept 9.________ (work) hard to support my teammates.Looking back on my high school life, the important words I'd show are “Be a rainbow in somebody else's cloud.” Give a hand to 10.________ is in trouble, and this will make you feel good.层级二语言能力训练Ⅰ.阅读理解When I woke up on August 4, 2016, there was only one thing in my mind: what to wear. A billion thoughts appeared through my brain. Not only was it my first day of high school, but it was my first day of school in a new state. First impressions are everything, and it was important for me to impress the people who I would spend the next four years with.After carefully hunting my closet (衣橱) ，I proudly came out in a dress. The soft cotton was comfortable, and the specially designed shoulders added a little fun. Yes, this dress was the one. An hour later, I felt powerful as I headed toward room 1136. But as I entered class, my jaw dropped to the floor.Sitting at her desk was Mrs Hutfilz, my English teacher, wearing exactly the same dress as me. I kept my head down and tiptoed (踮着脚尖) to my seat. I made it through my simple introduction speech until Mrs Hutfilz stood up, jokingly saying that she liked my style. Although this was the moment I had been afraid of from the moment I walked in, all my anxiety surprisingly melted away, and the students paid attention as I shared my story. My smile grew as I laughed with the students. After class, I stayed behind, talked to Mrs Hutfilz and made a humorous and real communication.Looking back four years later, the ten minutes I spent afraid of giving my speech were really not worth it. My first period of high school certainly made the day unforgettable in the best way and taught me that Mrs Hutfilz had a brilliant sense of style!1．Why did the author pay great attention to her clothes on the first day of high school?A．She followed her father's advice.B．She was unconfident about herself.C．She cared too much about her appearance.D．She wanted to make a good impression.2．Which of the following is TRUE?A．It was the author's first day of primary school.B．The author was satisfied with her first day dress.C．The teacher was unhappy because the author wore the same dress as her.D．The author made a conversation with the English teacher in class.3．How did the author probably feel after noticing her teacher's dress?A．Angry. B．Confused.C．Proud. D．Embarrassed.4．What is the author's purpose in writing the article?A．To share a memorable experience.B．To explore the troubles with dressing.C．To introduce the stylish English teacher.D．To stress the importance of first impressions.Ⅱ.完形填空I was about to explain the meaning of the word “gossamer” (薄纱；蛛丝) to my five­year­old students. We were learning a poem. I __1__ because one of them was waving his hand at me.“Yes？” I asked.“Once I got caught in a spider web__2__ I didn't see it，” the boy said.“That's gossamer！”I shouted, nearly jumping up.“ Gossamer things are hard to see.” Gossamer is also how I might describe the voices of __3__ young children.I can only hear them when I am close enough. They are not the children speaking with ease. They are the children whose faces turn __4__ if I call them, or whisper (低语) “I don't know” even when they do __5__ . I don't want them to__6__ .I want them to be comfortable being __7__ .Shy children usually have less practice in speaking, especially when there are other more children__8__ to talk. It's a loud world. Though shy children may appear __9__ to be in the background, they are losing opportunities to participate. Without practice, fear of speaking __10__ .It takes about three weeks, a small bit of __11__ each day, for eachof my 17 students to learn a poem. So far, they have memorized more than five. And now, an obvious __12__ has happened. The “shyest” children are as eager to read aloud as the __13__ ones.Practice is an excellent way to increase__14__ of shy children while learning a poem. And it is practice that makes them enjoy the __15__ of thelanguage.,1．A.stopped B．breathedC．argued D．reflected2．A.or B．untilC．because D．although3．A.curious B．shyC．intelligent D．anxious4．A.round B．blueC．red D．strange5．A.play B．askC．walk D．know6．A.get up B．take upC．turn up D．give up7．A.focused B．respectedC．heard D．told8．A.eager B．slowC．careful D．worried9．A.embarrassed B．puzzledC．amazed D．satisfied10．A.hides B．growsC．disappears D．falls11.A.research B．practiceC．benefit D．discussion12．A.accident B．changeC．debate D．event13.A.healthy B．familiarC．outgoing D．impressive14.A.excitement B．pressureC．resource D．confidence15.A.beauty B．methodC．trouble D．speed课时作业(三)层级一语言知识训练Ⅰ.单词拼写1．specific 2.sight 3.graduated 4.referring5．opportunities 6.frightened 7.figured 8.select9．struggling 10.particularⅡ.单句语法填空1．being sent 2.memory 3.to control 4.graduation5．frightening 6.selective 7.more frightened8．performance 9.to improve 10.exchangedⅢ.课文语法填空【语篇解读】本文是一篇记叙文。

Section ⅢDiscovering Useful Structures每/日/金/句：Since Qin Dynasty, Chinese various ethnic groups have lived together as a single nation.自秦朝以来，中国各民族就作为一个单一国家生活在一起。

语言基础集释(教材P30)I really like that paper folding book, and my son likes that paper folding book, too.我真的很喜欢那本折纸书，并且我的儿子也喜欢那本折纸书。

◎fold vt.包；裹；折叠vt. &vi.(可)折小；(可)叠平(1)fold (up) 折叠；对折fold one's arms 双臂交叉在胸前(2)unfold v. 展开(3)folding adj. 可折叠的[佳句] He folded up his umbrella as he entered the room.他进屋时把伞折了起来。

[练通]——单句语法填空①I finished my coffee, ________(fold) my newspaper and stood up.②As the mist cleared, a most beautiful view ________ (fold) before their eyes.[写美]——应用文佳句③那个年轻人双臂交叉躺在沙发上，很快就睡着了。

The young man lay on the sofa __________________and soon fell asleep.语法专项突破省略[自主感知]①And what a city (it is)—a city that was able to rebuild itself after the earthquake that occurred in 1906.②My hotel is near downtown，in the Mission District，(which is) one of the oldestparts of the city.③This district used to be a poor area of town，but (this district) is now a centre for art，music，and food.④(It is) A real mix of cultures here!⑤What great food (it is)!⑥(I) Can't wait被省略的部分为主语的是________。

Section ⅢGrammar——附加疑问句语境自主领悟先观察原句后自主感悟1.Wonderful gym，isn't it？2.This isn't your first time here，is it？3.You come here often，don't you？4.But it won't make me too tired，will it？e along and join us，willyou？附加疑问句，又称反意疑问句，主要用于口语，其作用是说话人向对方验证自己的陈述或者判断，也可以用祈使句表示请求或者建议，在句子结构上前半部分为陈述句，后半部分是前面部分的简短问句，如果前半部分为肯定句，后半句的简短问句则为否定式；如果前半部分为否定句，后面简短问句则为肯定式。

另外如果前半部分句子的主语是名词，在反意疑问句中要改为代词。

一、附加疑问句的组成附加疑问句包括陈述部分和附加疑问部分。

附加疑问部分一般由助动词、be动词或情态动词和表示主语的代词构成。

组成例句肯定式陈述部分＋否定附加疑问部分否定式陈述部分＋肯定附加疑问部分You often play badminton，don't you？You're going to the gym with me，aren't you？It's not a real sport，is it？They can't finish it by Friday，can they？(一)陈述部分含有must的反意疑问句当must作“必须”讲时，其反意疑问部分用needn't；当含有mustn't(不允许、禁止)时，其反意疑问部分用must/may。

如：You must go now，needn't you?你现在必须走，是吗？You mustn't smoke here，must/may you?你不可以在此吸烟，行吗？当must/may(might)表示推测，即must作“一定，准时”讲，may/might作“可能”讲时，可首先将句子改变“I am sure/gues s that从句”，反意疑问部分的动词形式根据be sure/guess后的宾语从句的谓语动词形式确定。

Ⅰ品句填词1．It is also wise of children to____________(请教) their parents when making decisions.答案：consult2．A healthy diet is very important for people. It contains some fat, some ____________(纤维)，a little salt and so on.答案：fibre3．Drink something hot after you eat, and your stomach will ____________(消化) your food better.答案：digest4. It is said that yoga is of great____________(好处) to human health.答案：benefit5．Many people like the film because it ____________(结合) education with recreation.答案：combines6．In my opinion, you had better set a ____________(限制)to the expense of your trip.答案：limit7．We’ll run into ____________(债务) if you spend more than our income.答案：debt8．Mum put down the phone, ____________(叹气) and shook her head sadly.答案：sighedⅡ单句改错1．There is a limit to people’s life, but no limit to learn the knowledge.____________________答案：learn→learning2．He should have handed in his paper yesterday, and he forgot about it completely.____________________答案：and→but3．Strangers find the two girls are so alike as it is difficult to tell one from the other.____________________答案：as→that4．He is such clever a student that he is able to work out all the difficult problems.____________________答案：such→so5．Neither he nor his friends has ever been to Guilin.____________________答案：has→haveⅢ完成句子1．彼得工作如此努力，以至于他不久就在学习上取得了很大的进步。

UNIT 3 Section Ⅰ一、语言基础训练Ⅰ．单词拼写1．There are plans to __extend__(扩展) the no-smoking area.2．News is flying about concerning a __royal__(皇室的) wedding.3．I shall advertise the loss of my __laptop__(笔记本电脑) in the newspaper, with a reward for the finder.4．But once you’ve collected all that __coverage__(覆盖范围) data, what can you do with it?5．Our team is leading in the league __tournament__(锦标赛).6．Its wealth derived from the control of __spice__(香料) trade and the cotton industry.7．Mr. Black dropped out of __politics__(政治观点) due to poor health.8．He was an electrician by __profession__(职业).9．If you add too much liquid, the __mixture__(混合物) will not be thick enough.10．The __tax__(税) policy was advocated by the opposition and was welcomed by the local people.Ⅱ．单句语法填空1．In order __to ensure__(ensure) success, we must have a complete and thorough plan.2．We are satisfied with the smoothness of the __negotiation__(negotiate).3．When he was very young, he was forced to leave his homeland for __political__(politics) reasons.4．Shanghai is the largest business center in all of China, and its modern cityscape is __a__ sight to behold.5．Children are curious about animals and show great __curiosity__(curious) about how they live.6．He’ll get something __in__ return for his good deeds.7．The young man does some running to __strengthen__(strength) his body.8．As we all know, books are the source of knowledge, __from__ which I benefit a lot.9．His action led us __to believe__(believe) that he was our true friend.10．He looked everywhere in search __of__ his glasses.Ⅲ．选词填空1．It was a bright clear morning when we at last __set sail__ in the ship.2．As a lawyer, Janice is so excellent that she is truly __in a league of her own__.3．He has decided to __withdraw from__ the competition.4．It took me great efforts to get these books __in hand__.5．This old Silk Road linked China with the west __in ancient times__.6．The ship is __under the command of__ Captain Blake.7．__In return for__ his generosity, the legislature voted that the school be named Harvard College.8．We must be kind and friendly and __reach out__ to those in need.9．We have brought down prices of medicines __for the benefit of__ the people.10．__From a__ long-term __point of view__，we should pay attention to education and science and technology.二、培优提升训练Ⅰ．阅读理解I decided to ski to the North Pole. It was after I saw an advertisement in a newspaper looking for people to join a team to ski 350 miles to the North Pole. Back in 1996, there had never been a woman from the UK who had accomplished this challenge.I wondered what it would be like to survive in temperatures cold enough to freeze your flesh in seconds, so I sent off for the application form.The application form full of pictures of male explores arrived. The words “Are you man enough for the ultimate(极限的) challenge？” made me angry and even more determined to get on the team.Over 500 individuals applied for a place in the team, and the selection process included physical and psychological tests designed to pick the best group. In one test, there was a huge rope ladder we had to climb, and I froze at the top because I have a fear of heights. I thought my hopes were fading as most other applicants sailed past, leaving me behind. But two others helped me over, and later I found out that the organizers were not looking for amazing individuals, but great team players, and this moment had shown them who would take care of others in the team.I had revealed(显示) my weakness, and in a place like the Arctic, you have to be yourself, as there is nowhere to hide. These personalities of asking for help and showing weakness are necessary for women to master.I realized that by being myself，I could succeed. I was selected for the team.I realized that I could achieve more than I ever imagined—more importantly, by sharing my story with others，I could inspire them to take a step into the new world and reveal more of their abilities.文章大意：本文是一篇夹叙夹议文。

Section B Reading and Thinking必备知识基础练Ⅰ.单句填空1.Through their work,the children develop concentration and (joy) self-discipline.2.They wanted to build friendships with people,regardless of race or (religious).3.After many years of hard work,they finally achieved their (origin) goal.4.Dams can be built to store water for (agriculture) use in dry areas and dry seasons.5.In a sense,they are spending a (significance) amount of time in fruitless efforts as they multitask.6.The (type) example is computers,which are almost out-of-date once they are bought.7.We (commercial) the Internet in our first digital production press one year ago.8.It was my (believe) that if I pushed you as hard as I could,some of you would succeed.Ⅱ.短语填空(注意动词的适当形式)1.It is reported that the temperature of our city 0 ℃to 30 ℃.2.By and by,the singing of the little boys and girls in the distance.3.I’m going to this opportunity to learn more about the history of America.4.Mr Brown refused to give up smoking his lung disease.5.Although many people laugh at him,Rob won’t his dream.6.Our school sports meeting will on June 19th,a week earlier than usual.7.The old man put up something like a man in his fields in order to the birds.8.The exhibition hall many traditional Chinese paintings.Ⅲ.一句多译1.在春节期间,所有的孩子都穿着漂亮的衣服。

SectionⅢUsing Language, Assessing Your Progress&Video Time课后·训练提升一、单词拼写.Many of us eat purely to satisfy our a for delicious food..After supper,I often w along the small river with my husband..I usually c home through the park..These are r animals which are in great need of protection..Most of his other pictures were variations on the same t.time and after that he went home.everyone to lead a low-carbon lifestyle.(wander) in the park alone last night.’s appetite food.(entertain).’t find the joke (amuse) at all.the time of his death.(swing) in the wind.a newspaper and it can also help us to learn English well.(fashion) to have long hair again.1.从这儿乘火车到杭州大约要花10个小时。

2.无论发生何事我都会支持你。

,I’ll take your side.3.我们是否接受这份礼物由你决定。

4.演讲者所说的内容尤其吸引我。

especially.5.你应当熟悉它是如何工作的,以便了解会发生些什么。

You should how it works so that you know what toSince having my son,I have found that I am always lucky enough to be surrounded by people willing to help.When he was eight weeks old,I had a(n) 1to meet with a TV producer in New York to talk about my career.It was Monday.Could I,a young mother with a newborn baby,drive from my home outside Boston to meet him on Wednesday?It was a 2chance.So I said yes.Honestly,it was 3.My son hated being in the car seat and ate very frequently during the long ride.4we spent a comfortable Tuesday night at my parents’ house in Connecticut,which is halfway between Boston and New York.When we 5New York,I handed my son over to my friend from college.A dad himself,he looked after him in a coffee shop during my6.Everything went fine thanks to his help.When my son was four months old,my best friend was going through a difficult time.So I decided to fly to Florida to 7her.Without my husband,who had to work,I was 8to fly with the baby.But I figured it couldn’t be 9than driving to New York when he was a newborn baby,and I had gotten through that.10,people I met on our trip were endlessly helpful.On the flight down,the airline worker got me an extra 11because the flight wasn’t full.A nice lady sitting close to us 12him while I went to the bathroom.Taxi drivers helped me fasten his car seat and loaded the awkward pushchair in their trunks.To 13my son,my friend borrowed a lot of toys.We spent four14days in Florida.If you want an opportunity to see the good in people,try taking a baby on a trip.In my experience,when face-to-face,most people sincerely want to 15each other.1.A.wish B.tripD.opportunitychance是提示。

Unit 1Section ⅢLearning about Language& Using Language课时作业Ⅰ.单句语法填空1．You must apologize to your parents for being so rude.2．Can you forgive me for giving you so much trouble?3．Mary, I reminded John of his promise to help you.4．The prison authorities permit visiting (visit) him only once a month.5．Benjamin Franklin set about learning (learn) the printer's trade at an early age.6．In a word, it is time for us to improve the safety of school buses.7．It is obvious to everybody that the only way to achieve one's goal is to work hard.8．Living (live) miles away, he attended the course.9．She couldn't make herself heard (hear) because of the traffic noise.10．Jack had something more important to do; as a result, he couldn't turn up this evening.Ⅱ.单句改错1．Be careful when crossing the bridge or you will fall into the water and get drowning.drowning→drowned2．This story reminds me my experience when I was a middle school student.my 前加of3．She was out of her breath from climbing the stairs.去掉her4．I'm writing this letter to express my apology for you for not writing you back in time.第一个for→to5．I'll keep my words, and I'll tell him everything.words→wordⅢ.阅读理解ALast year my wife and I spent a most interesting month in Turkey. Before we left, we were reminded of the difficulties of driving in Turkey. We certainly did not findthis to be the case and, except for a few places in faraway mountain areas, the roads were wide, and well-paved (铺设). We drove for 12 days along the Western Coast of Turkey and had no problems at all. We found the Turkish drivers to be very polite and well educated. We also found that eating lunch in the smaller towns was difficult, so we picnicked almost every day.The following day after our arrival was Turkey's Children's Day, started by Mustafa Kemal Ataturk. Ataturk loved children and he often said：“Children are a new beginning of tomorrow.” He even dedicated (奉献) the day 23rd of April to the children which is celebrated as Children's Day.On that day certain children are picked to take over the places of the government, and a lucky kid will be the president of Turkey for a whole day. He can decide what's going to happen and whether or not he is going to have the president next to him. There are a very large number of possibilities of things he can do but some shops aren't open because they are celebrating the day as well.All in all, it was a more enjoyable trip. I would recommend (推荐) a trip to Turkey to anyone with an adventurous (冒险的) spirit!【解题导语】本文是一篇游记题材的记叙文。

Section ⅢReading and Thinking(2)Ⅰ.单词语境记忆——根据英汉提示写出单词的适当形式1.They say that he masters(掌握) several foreign languages.2.She worked hard in order to win glory(荣誉) for herself.3.We have got 16 medals(奖牌)，most of which were won by women.4.Chinese athletes(运动员) have also made important contributions to the Olympic Games.5.I feel greatly honored(honour) to be welcomed into their society.6.After he recovered from illness，he tried to build up his strength(strong).7.In my opinion，the determination (determine)to succeed is an important quality to have.8.They said the injured were taken to a hospital nearby，and fortunately the injury was not serious.(injure)Ⅱ.短语语境填空——根据汉语提示写出适当的短语1.Helen has set a good example(树立了好榜样)to all of us; we should learn from her.2.It’s a pity that their marriage finally fell apart(破裂).3.Although Mike was in trouble，he did n’t lose heart(失去信心).4.Jason encouraged her，telling her not to give up(放弃).5.It can make us know the latest news at home and abroad(国内外).记单词Ⅰ.语境串记多义词1.The master of the garden is a master of language，who is said to have mastered 6 languages.这个花园的主人是一个语言大师，据说精通六门语言。