中考英语复习随堂演练九全第18课时试题

九年级英语第18课时随堂演练一、用所给词的适当形式填空examine friend late comfortable wealth1．Jay hasn't done much exercise because of the job.2．The sick boy was a moment ago. Luckily, he isn't badly ill.3．This experience will be great to all of us.4．We live far from each other, but our never dies.5．I like soft music. Rock ‘n’ roll just makes me ．二、根据所给汉语提示或括号内的单词，完成句子，每空一词1．The railway station is about two (街区) away.2．Tony wants to go shopping and buy a (背包)．3．I forgot to set the alarm clock and (睡过头) this morning.4．There are two big (机场) in Shanghai.5．Life is peaceful every day. Nothing (出乎意料的) has ever happened here.三、词语运用阅读短文，从方框中选择适当的词并用其正确的形式填空，使短文通顺、意思完整。

每空限填一词，每词限用一次。

方框中有两项多余的。

A game of hide-and-seek(捉迷藏) between an 11-year-old girl and her sister ended up being a serious game of hide-and-stuck(卡住)!The 11-year-old girl thought that if she 1 in the washing machine, her sister would never find her—and she didn't. When she realized she had 2 the game, she tried to get out of the washing machine, but she couldn't! She had curled(蜷曲) her 3 up for so long that they couldn't move and she couldn't use her feet to push 4 up and out of the machine! She became 5 and shouted out. Her sister called their mother Nicole Rhoades. They tried many ways to get her out. But 6 of them worked. The worried 7 could do nothing but call 911 and asked for firefighters' help. Firefighters brought many tools to get her out. 8 , they succeeded. Thankfully the family was able to laugh after the very 9 girl was safely out of the washing machine with only a few bruises(擦伤). After all that trouble, at least the girl did what she set out to do and found a hiding place where no one would ever think to look. But she won't be a 10 and hiding there again any time. “She won, all the way，” said Rhoades. “Best hide­and­seek ever. ”1． 2. 3. 4.5． 6.7.8.9．10.参考答案一、tely 2.examined 3.wealthy 4.friendship fortable二、1.neighborhoods 2.backpack 3.overslept4．airports 5.unexpected三、1.hid 2.won 3.legs 4.herself 5.scared6．dy8.Finally9.embarrassed10.fool。

第18课时一、单项选择1．—I don't have the to tell him the bad news.—Never mind. He's brave enough to face it.A．courage B．result C．secret D．trouble2．He did a lot to make his mother and his mother forgot all the terrible things finally. A．happy B．happily C．to happy D．is happy3．—Dad, why should I stop computer games?—For your health, my boy.A．to play B．playing C．play D．played4．—Could you tell me what the elephant's is?—Sure. It's about 500 kg, I think.A．weight B．age C．height D．build5．—Mei will represent our class in the English Speech Contest.—She is clever and she can speak English really well. She will not ．A．knock into us B．care about usC．let us down D．help us out6．It's too ．Everyone dares not to believe the result.A．expected B．unimportantC．important D．unexpected7．Mona asked me to come to the party, but she herself didn't ．A．wake up B．show up C．stay up D．stand up8．When I got to the fruit store, the bananas have been .A．sold out B．put out C．take out D．give out9．—Here are some that you need.—Thank you.A．piece of paper B．pieces of papersC．pieces of paper D．piece of papers10．A fire started to in the kitchen. It took us two hours to put it out.A．pull B．exchange C．burn D．perform二、综合填空阅读短文，根据短文内容及首字母提示，在空白处填入一个适当的单词。

课堂达标演练Ⅰ.用方框中所给单词的适当形式填空，每词限用一次drop choose value awful drop1．—I am sorry. I broke your camera by accident.—Never mind. I'm sure you didn't do it on purpose and it can't be helped.2．Her father her off at the school gate and then drove to work. 3．Because of the bad weather, there was a change of our plan. 4．Mark was the only student that was to attend the meeting.5．They've been friends for many years and they both their friendship very much.Ⅱ.语法填空阅读下面短文，在空白处填入一个适当的词，或填入括号中所给单词的正确形式。

A woman liked riding a horse. One day she fell off a horse and was badly hurt. Her husband, a lawyer, sent 1. Mr Ball, a doctor. Mr Ball knew the lawyer hardly paid bills and before he went into the lawyer's house, he said, “I'm afraid that you 2. (not pay) me if I cure your wife.”“Don't worry about it. Mr Ball.” the lawyer brought out two thousand dollars and put the money on the table. Then he said, “It won't matter 3.you cure my wife or kil l her. I will pay you this.” 4.(hear) this, Mr Ball came into the house. When he came into the woman's bedroom, he found he could hardly do 5. (something). But he still did his best to save her life. Four hours later, while he 6. (operate) on her, she died.“I'm sorry, sir.” Mr Ball said with a 7.(tire) look. “I've done my best, you know. Now, pay me the money, please.”“Yes, yes, sir.” the lawyer answered at once. “But can you tell me if you have killed my wife？”“8.can you say that？” Mr Ball was surprised and said angrily. “When I was operating on her, you saw all with your own eyes.”“That's true. And have you cured her？”“9.(somebody) could cure her, I think.”“Well, then.” the lawyer said happily. “Why do I have to pay you the money since you neither cured 10. killed her？”参考答案Ⅰ.1.awfully 2.dropped 3.sudden 4.chosen 5.valueⅡ.1.for 2.won't pay 3.whether 4.Hearing 5.anything6．was operating7.tired8.How9.Nobody10.nor。

第18课时随堂演练Ⅰ. 单项选择1．—I don't have the to tell him the bad news.-Never mind. He’s brave enough to face it.A．courage B．resultC．secret D．trouble2．He did a lot to make his mother and his mother forgot all the terrible things finally.A．happy B．happilyC．to happy D．is happy3．Bob and I are good friends. Our has been on for over 10 years. A．message B．friendshipC．educat ion D．information4．—Bill said he would come to my birthday party, but he didn't ．—Really， but he promised yesterday.A．get up B．make upC．look up D．show up5．—Could you tell me what the elephant’s is?-Sure. It's about 500 kg， I think。

A．weight B．ageC．height D．build6．It's too . Everyone dares not to believe the result.A．expected B．unimportantC．important D．unexpected7．—Tu Youyou received the Nobel Prize for her of artemisinin（青蒿素)．—And she was the first Chinese who won the prize in science.A．design B．thoughtC．invention D．discovery8．When I got to the fruit store， the bananas have been .A．sold out B．put outC．take out D．give out9．David felt because he was not able to get a ticket to the concert. A．moved B．excitedC．disappointed D．grateful10．I 900 English words by the time I was ten。

第18课时随堂演练一、根据句意和所给的中文提示，写出句子中的单词1．Our English teacher is showing us a new _______ (方法) of writing.2．Her daughter _______ (毕业) from Qingdao University last year.3．I can clearly see fish swimming at the _______ (底部) of the river.4．With the development of _______ (工业), it will also cause some pollution problems.5．I am very _______ (口渴的). Could you give me something to drink?6．We should know that knowledge will give us _______ (翅膀) to fly.7．I can't _______ (买得起) to buy this big house.8．We are all very to have _______ (单独的) rooms now.9．Bob is a _______ (体贴人的) man and he is always considering others more than himself. 10．We ___________ (祝贺) her on her excellent exam results last week.二、根据句意用所给词的适当形式填空1．The river near the city has been _______ (bad) polluted by the factory.2．Drinking too much wine is _______ (harm) to your health.3．My brother works as a _______ (manage) in the company.4．Thanks to my English teacher, my exam scores _______ (double) last term.5．Many _______ (reuse) things can be used more than once.6．Their school is much bigger than _______ (our)．7．It is important for the government to develop _____(law) to protect environment. 8．Ladies and _______ (gentleman), may I have your attention please?9．Before taking the medicine, you should read the _______ (instruction) first.10．We all should know the _______ (important) of protecting the environment.11．Mr. Black was asked to give a speech on the _______ (graduate) ceremony.12．My sister keeps a dog in a big _______ (wood) box.13．The clock in our class doesn't work. It needs to __________ (repair)．14．Our English teacher use different teaching _______ (method) in his class.15．We are _______ (thank) to know that you have helped us a lot.三、短文填空根据短文内容及首字母提示填空，使短文意思完整、连贯Students are always asked to do much homework. Have you read the following passages?You'd better not work when you're very hungry. If you (1) d_______ to do your homework right after school, you may have a snack before getting to work. Always do your homework (2) b_______ you get tired. Don't wait until very (3) l_______ in the evening, or the homework will seem much (4) h_______ than it really is.Break your time into manageable(易处理的) period. If you have more than an hour's work, give yourself a (5) b_______ after an hour. On the other hand, don't break it up so often that you(6) c_______ get anything done. You should be able to work at least after an hour at a time without(7) s_______. Don't put it off until the last minute. If you put off doing your homework, You will always think of it, and you won't enjoy your free (8) t_______ so much. If you put it off until the end of the week or until right before a test, you will have too much work to do for the (9) e_______．A little bit each night, enough to keep up with what is happening each day in school, will take the fear out of tests and keep you on top of it all. Do your homework at the same time every day. This will help you make it a habit. It will make it (10) e_______ to do, and it willmake free time more enjoyable as well.参考答案一、1.method 2.graduated 3.bottom4．industry 5.thirsty 6.wings 7.afford8．separate 9.caring 10.congratulated二、1.badly 2.harmful 3.manager 4.doubled 5．reusable 6.ours ws 8.gentlemen 9．instructions 10.importance 11.graduation 12．wooden 13.be repaired 14.methods 15．thankful三、1.decide 2.before te 4.harder 5．break 6.can't 7.stopping 8.time 9．exam 10.easier。

九年级全册Unit3Lesson17-18 随堂基础同步练习一、单选题1.Lily ______ the coming car，so it hit her．（）A. will seeB. didn't seeC. sawD. haven't seen2.It ______ him three months to recover．（）A. spentB. costC. paidD. took3.I'll ______ the scarf ______ this sweater．（）A. wear；withB. wear；ofC. dress；withD. in；with4.-Don't forget to attend pingpong training tomorrow．-OK．______．（）A. I willB. I won'tC. I canD. It's OK5.He had a terrible disease last year．But now he gets ______．（）A. more and more goodB. better and betterC. more better and more betterD. much good and much good6.The farmer warned us ______ the flowers on the trees．（）A. pickB. not pickC. not to pickD. not picking7.You must stay ______ when you are in danger．（）A. healthyB. healthC. calmD. strong8.The trees can protect the soil from ______ away．（）A. blowB. to blowC. blowingD. blew9.I shouted to the driver of the car to ______ and let me through．（）A. put upB. put onC. pull outD. pull over10.Keep an eye ______ the things around you．（）A. in forB. out forC. in ofD. out of二、单词造句11.high，don't，too，climb_____________________________________________!12.like，bought，do，the，you，I，book，you_____________________________________________？13.sky，touch，he，could，the，almost_____________________________________________．14.would，he，careful，me，told，he，be_____________________________________________．15.faster，I，him，watched，faster，run，and_____________________________________________．16.waves，earthquakes，cause，can，huge_____________________________________________．17.trouble，you，stay，when，in，are，calm_____________________________________________．ing，keep，weather，an，for，out，eye，the_____________________________________________．19.earthquake，you，experienced，ever，an，have_____________________________________________？20.system，too，down，calls，will，many，the，bring，phone_____________________________________________．三、选词填空1. There was __________ with his leg．2. The __________ suddenly broke while he was climbing the tree．3. Success comes from hard __________ ．4. I think every student must obey the school __________ ．5. Don't forget your teacher's warning about __________ ．1. The policeman asked the driver __________ to the right side of the road．2. The old man was frightened，but he __________ ．3. Many people saw a bright __________ in the sky at night last Sunday．4. The __________ can translate English into Chinese．5. A terrible __________ happened in Chile in February，2019．四、完成句子1. 他给我写信告诉了我那次事故．He__________ me__________ that accident．2. 听他人的警告是重要的．It is important to__________ other people's__________．3. 他爬得越来越高了．He climbed__________ and__________．4. 他用了两年的时间写了这本书．It__________ him two years__________ this book．5. 顺便问一下，他的腿有问题吗？__________，is there anything wrong with his leg？6. 地震的到来是不打招呼的．An earthquake comes__________．7. 当我哥哥在建房子时，一块砖头落在了他的头上．While my brother was building a house，a brick__________ his head．8. 对于我们来说保护自己是很重要的．It's important for us to__________．9. 李明的家离他的学校很远．Li Ming's house is quite__________his school．10. 老师告诉我们尽可能认真地做作业．Our teacher tells us to do our homework__________ possible．答案一、1. B2. D3. A4. B5. B6. C7. C8. C9. D 10. D二、11. Don't climb too high12. Do you like the book I bought you13. He could almost touch the sky14. He told me he would be careful15. I watched him run faster and faster16. Earthquakes can cause huge waves17. Stay calm when you are in trouble18. Keep an eye out for the coming weather19. Have you ever experienced an earthquake20. Too many calls will bring down the phone system．三、1. something wrong2. branch3. training4. rules5. safety6. to pull over7. stayed calm8. object9. system 10. earthquake四、1. wrote to；about2. listen to；warning3. higher；higher4. took；to write5. By the way6. without warning7. fell on8. protect ourselves9. far from10. as carefully as。

人教新目标中考英语总复习过关九全第18课时Units7_8课时训练试题及答案[限时：30分钟]Ⅰ.单项选择()1.[2017·西宁改编]—What will the weather be like tomorrow?—It ________ be rainy, cloudy or sunny. I'm not sure.A．must B．might C．can't()2.[2017·长春改编]—Is the man in the car John?—No, it ________ be him. He went to Xi'an on business yesterday.A．can't B．must C．mustn't()3.[2017·黄石改编]—Jack, remember ________ off the lights when ________ the home.—OK, I won't forget, Mom.A．turning; leavingB．to turn; leaveC．to turn; leaving()4.[2017·绥化]—Every time the exam is over, I will ________ the result.—Take it easy! Grades are not our whole life.A．be proud of B．be good atC．be worried about()5.[2017·黄冈改编]—Last month China hosted BRF for International Cooperation(—带一路高峰会议) successfully.—Yes, thousands of foreign guests ________ to the meeting.A．invited B．are invitedC．were invited()6.[2017·丹东改编] Mom, I'm old enough to wash ________ clothes and________. You can have a rest now.A．my; your B．my; yoursC．yours, mine()7.[2017·营口改编] Although he is ________ 8­year­old boy, he can play ________ violin very well.A．an; the B．the; a C．a; the()8.[2017·麓山模拟]—Whose iPhone 7 is that?—I think it ________. I heard that he has just bought a new one.A．is Tom'sB．is TomC．belong to Tom()9.[2018·原创]My group leader has been invited to ________ the international meeting held in Beijing.A．join inB．attend C．take part in()10.[2018·原创]I didn't ________ very well last night, so I felt ________ in class today.A．sleep; asleepB．asleep; sleepyC．sleep; sleepyⅡ.完形填空[2017·怀化]A big company(公司)wanted to find someone to work for them. Lots of young college students came to ask for the __11__. And this time, the company didn't plan to choose the right person as usual.Here came the day when they took the final interview. A big box full of papers was placed on the way to the interview room, and a few __12__ were lying around the box.The__13__ student came. He hurried along the way to take the interview.“__14__ put the box in the middle of the road？” the studentsaid to himself, but he did not try to move the box away. Instead, he passed around the box and continued his way.The second student came along and did the __15__ thing. Then another one came, and another. All of them complained(抱怨) about the box, __16__ none of them tried to move it.Half an hour later, a thin young man with glasses came. He saw the box and papers around it. He stopped to pick up the papers and put __17__ in the box. Then he moved the box to the side. __18__ his great surprise, he __19__ an invitation under the box. It said,“Congratulations! You are the __20__ person we are looking for! Would you like to join us？”Sometimes, you see, helping others is helping yourself.()11.A.book B．job C．money()12.A.papers B．books C．magazines()13.A.one B．once C．first()14.A.Who B．When C．Where()15.A.different B．common C．same()16.A.but B．and C．however()17.A.it B．them C．they()18.A.To B．With C．On()19.A.looked B．invented C．found()20.A.strange B．right C．handsomeⅢ.阅读理解[2018·原创]The action film Wolf Warriors 2(《战狼2》) topped the box office in thehighest number, reached 3.4 billion yuan (about $506 million) in just 13 days.The movie, directed by and starring the action star Wu Jing, is now China's top grossing film(最卖座电影), breaking the record previously held by Steven Chow's fantasy comedy The Mermaid.Wolf Warriors 2 tells the story of a former Chinese Special Forces operative's(特种部队特工) adventures to rescue compatriots(同胞) and local friends in a war­torn region of Africa.The success of the film has been beyond the expectations of all, including the production team.“Yu Shizhi once said:‘The audience is kind. They see all flaws(缺点), but don't tell.’ I will continue to work hard to shoot great films for Chinese viewers，” said director Wu Jing.The movie is breaking the records at surprising speed. Single­day earnings are over 200 million yuan for more than 10 days, breaking China's box office new records.Wolf Warriors 2 and the previous record­holder The Mermaid were released in similar number of theaters and both recorded similar attendance in the first eight days of screening. However, starting from the ninth day, the number of ticket sales for The Mermaid began to fall, while that for Wolf Warrior 2 continued to grow.Although kung fu being a familiar element(元素) in Chinese films, military action had a large space to fill in China's film market. BeforeWolf Warriors 2, the highest earning action film in China was action comedy Kung Fu Yoga(2017) starring Jackie Chan, which earned 1.75 billion yuan. The box office record for military action was held by Operation Mekong(2016) with 1.18 billion yuan in ticket sales.()21.Wolf Warriors 2 is a/an ________．A．comedyB．action movie C．scary movie()22.What's the second top grossing film in China?A．Wolf Warriors 2B．The MermaidC．Operation Mekong()23.What does the director of Wolf Warriors 2 Wu Jing think of it?A．It's a perfect film.B．No other films will be more successful.C．It's not good enough.()24.Which element is included in Wolf Warriors 2?A．Military action.B．Humor.C．Dancing.()25.The earnings of Wolf Warriors 2 in the first ten are at least more than ________ yuan.A．2 billionB．200 millionC．2 millionⅣ.补全对话A: Hello, House of Noodles.B: Hello, I want to order some food.A: 26.__________________________？B: I'd like a bowl of beef noodles.A: 27.__________________________？B: A large bowl.A: Would you like some drinks?B: Yes. 28.__________________________．A: OK. A large bowl of beef noodles and a cup of coffee. What's your address?B: It's 798 Jianshe Road.A: 29.__________________________？B: It's 398­4528.A: All right. That'll be twenty­one yuan.B: Well, thank you. See you.A: You're welcome. 30.__________________________．人教新目标中考英语总复习过关九全第18课时Units7_8课时训练试题及答案Ⅰ.1—5BACCC6—10BAABCⅡ.【主旨大意】该文通过许多大学生求职的故事告诉人们帮助别人就是帮助自己的道理。

15 善待家园01积累运用1．下列词语书写和加点字注音完全正确的一项是(D)A．侵蚀．(shí)迁徒．(xí)繁衍．(xián) 无影无踪．(zōng)B．吞噬．(shí) 公倾．(qǐng)呵．护(hē) 突如其．来(qí)C．遗骸．(gāi) 屏．障(bǐng)锤．炼(chuí) 名列前矛．(máo)D．凝．重(níng) 洋溢．(yì)开垦．(kěn) 无动于衷．(zhōng)2．下列句中加点成语使用有误的一项是(B)A．这两个平时一见面就吵架的人今天居然相安无事．．．．，真奇怪。

B．教育孩子不仅仅是学校的事，家长也有义不容辞．．．．的责任。

C．侦察员们在草丛中埋伏好，严阵以待．．．．，只等犯罪分子露出头来。

D．圆明园昔日宏伟壮丽的景物已荡然无存．．．．了。

(解析：B项“义不容辞”意思是道义上不允许推辞，用于有正义感的人。

用在此处不符语意。

)3．下列句子中没有语病的一项是(B)A．学校经常开展安全常识教育活动，这大大增强了同学们自我保护。

B．在母亲的言传身教下，胡适先生从小就养成了宽恕人、体谅人的好脾气。

C．为优化育人环境，提高办学质量，学校加快了校园环境改造的速度和规模。

D．要改变“亚健康”状态，就必须科学合理地安排时间，切忌不要打“疲劳战”。

(解析：A.成分残缺，在句末加“的意识”；C.搭配不当，可删掉“和规模”；D.否定不当，删掉“切忌”或“不要”)4．将下列句子重新排序，顺序恰当的一项是(D)①舆论几乎一边倒地把今年冬天的极端天气归咎于全球变暖。

②因为早在人类出现之前，地球就出现过导致冰川大规模融化的全球变暖，而近年的气温上升很可能只是地球正常的周期性气候变化的一个阶段。

③也有不少科学家认为，全球变暖对飓风、暖流、风暴、洪水及干旱等极端天气现象的作用被远远夸大了。

④气候变化在全球引起了激烈的争论。

1 / 2、单词拼写1. We don't have eno ugh money now, so we must cut dow n on the of money we use.2.I decided to all my efforts on learning math. 3. The teacher the boys from the girls to start physical fitness test.4. We Susan on winning the game yesterday.5. Can I have a glass of water? I am really. 二、选词填空根据短文内容，选择适当的单词填空，使短文意思完整。

每个选项只用一次，有一项剩余。

The most important drink is water. Not many people understand this but it is quite true.People can 1 for a long time without food, but they will die in two or three days without water.In hot weather, many people do not drink 2 water, because they don't know how much water they need. After taking exercise, people need more water. The water in the man's body is supposed to be 3 more tha n other matters. We'd better have eno ugh water, or we may get ill.Water is 4to all the livi ng thin gs. “ There will be no life if there is no water. ” So we must save water and don't 5 water. ___ 1. _______ 2. _________ 3. __________4. ___________5. __________三、完成句子根据汉语意思用英语完成句子。

第18课时随堂演练一、单词拼写1．Are there any on how to plant the trees?2．There will be no difficulty in the world that people cannot (克服)．3．It is important to be a (负责任的) person.4．With the economic growth at full speed, people's living are generally improved. 5．The (平均的) cost of making a movie has risen by 15%.6．(2015·滨州中考)It is impossible to (分离) Diaoyu Island from China.7．She took her (学位) with first­class honor.8．The (绅士) opened the door for the lady in black politely.9．—We won the first prize.— to you!10．He was completely shocked by her (举止)．11．I'm very . I want a bottle of water.12．This (课文) is asked to be translated into English by our teacher.13．The top of this mountain is three kilometers above the sea ．14．I have something important to tell the (经理)．15．She was (感激的) that Jack was there.二、语法和词汇1．(2017·沈阳中考)These light bulbs look the same, but their on the environment are different. A．solutions B．methods C．effects D．secrets2．(2017·荆州中考)—It's his new book, but I think it is more interesting than his other books. —I agree with you. His latest book is up to his highest .A．choice B．standard C．purpose D．wealth3．(2016·宁夏中考)—Did you pass the test?—Yes. I'm very for your advice.A．thankful B．careful C．useful D．helpful4．(2016·临沂中考)These people dress themselves in bloody shark suits.They tell people shark fins in order to protect sharks.A．eat B．to eat C．not eat D．not to eat5．(2016·宜昌中考)—Many teenagers put mobile gaming other things and spend too much time on it.—That's really bad.A．up to B．as for C．ahead of D．along with6．As time ， you'll come to think of English as your friend and love it.A．goes by B．runs out C．takes off D．turns up7．To get this problem solved, the team has done a number of in public.A．reports B．surveys C．production D．methods8．(2016·黔东南州中考)I remember to Beijing when I was a child.A．to take B．taking C．to be taken D．being taken9．(2016·厦门中考)—The milk shake tastes good. How do you make it?—It's easy, just follow the ．A．discussions B．instructions C．resolutions10．As a teacher, I love being with my students. You can't imagine how much they knowledge!A．are thirsty for B．are famous forC．are good for D．are good at11．Billy along with his parents invited to the party and they enjoyed themselves. A．was B．were C．is D．are12．(2014·德州中考)—Would you like some cakes, Allen?—Yes, please. And I also want some water. I'm so ！A．lazy B．hungry C．sleepy D．thirsty13．The man C is talking to our teacher is Betty's father.A．which B．whom C．who D．what14．(2015·临沂中考)What happens when you hear a strange noise at night, or find a big spider in the corner of your bedroom? It often makes us ．A．jump B．to jump C．jumping D．jumped15．On that morning, we got up early and D for the workplace.A．went up B．went down C．set up D．set out参考答案一、1. instructions 2. overcome 3. responsible 4．standards 5. average 6. separate 7. degree 8．gentleman 9. Congratulations 10. behavior 11．thirsty 12. text 13. level 14. manager 15．thankful二、1～5 CBADC 6～10 ABDBA 11～15 ADCAD。