初中英语中考必背重点句型(最新版)
- 格式:doc
- 大小:60.00 KB
- 文档页数:12
2023初中英语必背句型(精选)2023初中英语必背句型(精选)2023初中英语必背句型有哪些呢?怎么才能学好初中的英语呢?下面小编给大家整理了关于2023初中英语必背句型的内容,欢迎阅读,内容仅供参考!2023初中英语必背句型1.我是学生.(简单句)I’m a student.2.他在做的与我无关.(复合句)What he does is none of my business.3.我来了,但他已经走了. (并列句)I came, but he has left.4.我不知道他已经走了,但是她知道. (并列复合句)I don’t know he has left, but she does.5.你能回答我的问题吗?(疑问句)Can you answer my question?6.我在写信. (陈述句)I’m writing a letter.7.请开门.(祈使句)Please open the door.8.他是一个多聪明的男孩啊!(感叹句)What a clever boy he is!9.我非常喜欢这本书.I like the book very much.10.他昨天去哪儿了?Where did he go yesterday?11.你应该用正确的方法做这件事.You should do it in the right way.12.最终, 他受到了惩罚.At last, he was punished.13.他在湖里游泳.He is swimming in the lake.14.至今,我已经读了100部小说.So far, I have read 100 novels.15.我不喜欢这乐曲.I don’t like the music.16.你喜欢音乐吗?Do you like music?17.如果我是你, 我会跟他在一起.If I were you, I would stay with him.18.面对困难,一定要保持冷静.When facing difficulty, you should keep calm.19.最终,他梦想成真.At last, his dream came true.20.你所说的听起来很有道理.What you says sounds reasonable.初中英语常考句式1. be worth doing值得被……(主动形式表被动含义)The book is well worth reading.这本书很值得被读。
初中英语中考常考的八类基础句型1“主语 + 谓语”(即“主谓”句型)这一句型英汉语言结构形式完全相同,说明“某人或某物如何动作”,或者说“某人或某物自身怎样运动”。
例:They arrived in Harbin yesterday morning.分析:“they”(主语)“arrived”(谓语)。
2“主语 + 谓语 + 宾语”(即“主谓宾”句型)这一句型英汉语言的结构形式完全相同,用以说明“某人或某物做什么事情”,或者说“某人或某物发出了动作,并且其动作涉及到另一个人或物”。
例:I study English.分析:“I”(主语)“study”(谓语动作)“English”(宾语即动作涉及的对象)。
3“主语 + 谓语 + 间接宾语 + 直接宾语”(即“主谓双宾”句型)这一句型英汉语序结构相同,说明“某人为谁(间接宾语为人)做某事”,或者说“某人或物的运动涉及到两个对象,其中一个间接对象为人,另一个为物”。
例:Our teacher taught us English.分析:“our teacher”(主语)“教”(谓语动作)“us”(间接宾语)“English”(直接宾语)。
4“主语 + 谓语 + 宾语 + 宾语补足语”(即“主谓宾补”句型)这一句型说明“某人或某物要求(使、让)某人做什么”或“某人感觉某人或物怎么样”。
例: He asked her to go there.分析:“he”(主语)“asked”(谓语动作)“her”(宾语即动作涉及的对象)“to go there”(补语—补充说明宾语做什么)。
5“主语 + 系动词+ 表语”(即“主系表”句型)这一句型用以说明“某人(某物、某事、某种概念)具有什么特征或处于什么状态”。
汉语的“是”字结构属于这一英语句型的形式之一。
常用的联系动词有be, keep,lie, remain, stand, become, fall, get, go, grow, turn, look, feel, seem, smell, sound, taste, 等。
[短语、词组归纳]由动词开头构成的短语、词组很多。
复习时应分类处理:一、动词+介词1.look at…看…,look like … 看上去像……,look after …照料… 2.listen to…听……3.welcome to…欢迎到……4.say hello to …向……问好5.speak to…对……说话此类短语相当于及物动词,其后必须带宾语,但宾语无论是名词还是代词,都要放在介词之后。
二、动词+副词“动词+副词”所构成的短语义分为两类:A.动词(vt.)+副词1.put on 穿上 2.take off脱下 3.write down记下此类短语可以带宾语,宾语若是名词,放在副词前后皆可;宾语若是人称代词,只能放在副词的前面。
B.动词(vi)+副词。
1.come on赶快 2.get up起床 3.go home回家4.come in进来 5.sit down坐下 6.stand up起立此类短语属于不及物动词,不可以带宾语。
三、其它类动词词组1.close the door2.1ook the same3.go to work/class4.be ill5.have a look/seat6.have supper7.1ook young 8.go shopping 9.watch TV/games10. play games[介词短语聚焦]“介词+名词/代词”所构成的短语称为介词短语。
现将Unitsl-16常用的介词短语按用法进行归类。
1.in+语言/颜色/衣帽等,表示使用某种语言或穿着……。
2.in + Row/ Team/ Class/ Grade等,表示“在……排/队/班级/年级”等。
3.in the morning/ afternoon/ evening/ 表示“在上午/下午/傍晚”等一段时间。
4.in the desk/ pencil-box/bedroom 等表示“在书桌/铅笔盒/卧室里”。
中考英语热点句型一、网红带货网红:social media influencerHe is not only a social media influencer, but also a teacher.他不只是个网红,还是个教师。
很多时候,我们都会把某个行业的意见领袖简称为:KOL,也可以表达网红的意思。
eg:Belling says influencer marketing was critical from day one, when popchips was just a little indie brand that could.Belling 说,网红带货从第一天起就至关重要,当时 popchips 还只是一个小的独立品牌。
二、直播直播:live streamThis is a wonderful live stream.这是一场精彩的直播。
相关词汇:网红直播:live video streaming/ network broadcast网络主播:network anchorlive stream 直播live 表示:现场直播stream 表示:流量eg:Let's watch the live stream together!我们一起看直播吧!【相关热词】e-commerce live streaming 电商直播direct broadcasting room 直播间online platform 网络平台social media 社交媒体Tik Tok 抖音purchasing power 购买力fan economy 粉丝经济live streaming economy 直播经济limited edition 限量发售anchorman /’æŋkəmæn/ 男主播anchorwoman /’æŋkəwʊmən/ 女主播streaming online 在线直播key opinion leader 网红KOLnew media 新媒体follow / unfollow 关注 / 取关hit the LIKE / thumbs up 点赞reward function 打赏功能flood / explode the screen 刷屏social network / networking 社交网络attract followers 圈粉【小拓展】“明星代言”英语可以说成 celebrity endorsementendorse /ɪn’dɔs/ v.代言;宣传endorsement n.代言开箱直播:unboxing live stream美妆直播:beauty live stream穿搭直播:fashion live stream【相关人物】口红一哥——李佳琦The 27-year-old Li Jiaqi’s maverick sales technique has won him the nickname "Lipstick Brother No 1".Once an unassuming shop assistant earning a modest salary in Nanchang in south-east China, he now has more than 40 million followers on Douyin.27岁的李佳琦特立独行的销售技巧为他赢得了“口红一哥”的称号。
初中新目标英语中考总复习英语版动词+to do 和动词+doing 句型总结一、带动词ing形式1.keep doing2.keep sb. Doing3.practise doing sth.4.enjoy doing5.finish doing6.be afraid of doing7.be busy doing8.look forward to doing9.how about doing、./what about doing10.spend some time (in)doing11.spend some money (in) buying12.feel like doing13.stop/keep/prevent … from doing14.thank sb for doing15.thanks for doing16.dosomecooking/cleaning/reading/shopping/washing 17.goswimming/fishing/shopping/skating/boating18.mind doing19.can’t help doing20.consider doing21.have fun doing sthhave difficulty doing sthhave trouble doing sthhave problem doing sth22.waste time/money doing23.instead of doing 24.miss doing25.hold on to doing26.pay attention to doing27.suggest doing28.It’s time for doing29.There is sb doing sth30.be used to doing sth31.be used for doing sth32. have a lot of experience33. sb allow doing sth34. put off doing sth35. succeed in doing sth36. end up doing37. give up doing38.二.含有不带to的动词不定式句型:1.had better (not) do sth.2.would you please (not) do sth3.why not do sth.4.why don’t you do sth.5.Shall we do sth.?6.let sb do sth.7.make sb. do sth. have sb do sth8.feel sb do sth三、含有带to的动词不定式句型:1.It’s time to do sth.2.It takes sb. some time to do sth3.tell/ ask/ want/encourage/invite/ sb. todo sth.4.Would you like to do sth.?5.It’s good/bad to do sth6.It’s good/bad for sb.to do sth.7.be +adj.+ enough to do sth.8.sb. is ready to do sth.9.It’s + adj.+ for sb. to do sth.10.It’s + adj.+ of sb. to do sth11.would like/love /decide/want/wish/to dosth.12.would like/love sb. to do sth.13.Prefer to do sth. rather than do sth.14.how/ when/where/whether to do sth15.can’t wait to do16.too … to do …17.be afraid /ready/able/sure to do18.It’s time to do sth19.My job is to do sth20.My dream is to do sth21.My hobby is to do sth22.refuse to do sth23.warn sb to do sth24.pretend to do sth25..teach/learn to do sth26.need to do sth27.be willing to do sth28..try to do sth29.try one’s best to do sth30.agree to do sth31.seem to do sth32.plan to do sth /make a plan to do sth33.in order to do sth34.have a chance to do sth35.find it +adj + for sb to do sth36.have sth to do37.There is sth for sb to do38.be anxious to do39.afford to do sth40.两个动作连用,表目的ed to do sth42.be used to do sth43.be supposed to do sth44.allow sb to do sth45.sb be allowed to do sth46.the best way is to do sth47.the next step is to do sth48.have nothing to do with49.the first thing is to do sth50.it’s best to do sth51.it’s a good time to do sth52.it is a good way to do sth53.add to do54.urge sb to docate sb to do56.wait for sb to do57.order sb to do58.happen to do sth59.lead sb to do sth60.it’ a good place to do sth61.invite sb to do62.get to do sth63.expect to do64.volunteer to do sth 65.offer to do sth66.have an opportunity to do67.get sb to do sth68.it’s one’s duty to do sthe sth to do sth70.be sure to do sth71.have to do sth72.be able/unable to do sth四、既用带to的动词不定式又用ing形式的句型:1.stop to do/ doing2.forget to do/ doing3.remember to do/doing4.go on to do/doing5.like to do/doing6.love to do/doing7.prefer to do/doing8.hate to do/doing五、下列结构用带to的动词不定式和ing形式含义相同:、1..begin to do/doing2.start to do/doing3.continue to do/doing4.take turns to do/doing六、既用不带to的动词不定式又用现在分词的句型:用不带to的动词不定式强调动作的完成过程;用现在分词强调动作的进行状态。
中考英语必背80个固定短语句型1.much,a little, even, still等表示程度的副词可用来修饰比较级;而very, too, so, quite(表示身体健康的quiter除外)习惯上不用来修饰比较级。
2.arrive in +大地点/ arrive at +小地点3.Let’s +动词原形4.长,宽,高的表达法:数字+量词+形容词。
如:20 metres wide二十米宽5.stop doing sth 停止正在做的事情6.stop to do sth 停下(正在做的事情)来做另一件事7.stop sb from doing sth 阻止某人干某事8.can’t stop doing sth 情不自禁干某事9.There is +单数可数名词/不可数名词+ 地点状语.10.How many+复数名词+are there+介词短语?11.remember to do sth记得将要干某事(事没做)12.remember doing sth .记得曾经做过某事(事已做)13.在季节、月份、星期、节日、球类运动、棋类游戏的名词之前不用冠词。
14.would like to do sth 想要做某事15.How about /What about doing sth ?= Why not do sth ?16.It’s time for sth 该到某事的时间了17.It’s time to do sth该到干某事的时间了18.have fun doing sth 很高兴干某事19.make sb do sth 使某人干某事20.can’t afford to do sth 没有足够多钱干某事21.can’t stand doing sth 不能忍受干某事22.mind doing sth 介意干某事23.try to do sth 尽力干某事24.finish doing sth 结束干某事25.decide to do sth 决定干某事26.plan to do sth 计划干某事27.It +takes +sb.+时间+to do sth28.sb. +spend +时间+on sth (in doing sth )29.Can you do sth ?你可以做,,,吗30.be busy doing sth 忙于干某事31.called = named = with the name (of)32.at the age of = when sb was/ were ….33.because of 后面接名词、代词、名词性短语、what从句34.keep doing sth . 表示不间断地持续做某事或一直做某事。
一、常考重点句型:1. be + afraid of doing / to do /that从句2. be + busy doing sth./ with sth.3. be + famous / late /ready / sorry +for sth.4. make/ let /have sb. (not) do sth.5. ask / tell /want sb. (not) to do sth.6. give/ buy/ lend/ sb. sth.7. tell/ ask sb. how to do sth.8. It’s time +for sb. to do sth.9. It’s +形容词+for/of sb. to do sth.10. would rather do...11. had better do sth.12. It’s +better/ best to do sth.13. enjoy/ finish/ practice/ mind/feel like + doing sth.14. stop +to do (doing) sth.15. keep/ stop/ prevent sb. from +doing sth.16. prefer +宾语+to +宾语17. used to do sth.18. be/get/become +used to +doing sth.19. 含有too ... to do sth.结构的句型20. 含有so...that的句型21. It +takes/took +sb. +to do sth.22.spend +名词+on sth./ doing sth.23. see/ hear/ watch sb. do/doing sth.24. What’s wrong / the matter with +sb./ sth.25. Thanks for + doing sth.26... What/ How about +doing sth.27. Let’s do...28. The +形容词/副词的比较级+主语+谓语,the +形容词/副词的比较级+主语+谓语29. 表示比较的三个句型30. sth. /sb. be (am, is, are) three meters long (wide, high, tall...) 某物/某人有三米长/宽/高……31. It’s two years / has been two years +since 从句32. both...and...连接主语的句型33. neither ...nor... 连接主语的句型34. There is something /nothing wrong with sth 某物出毛病了(没毛病)35. Why not do .../ Why don’t you do ... 为什么不......36. Will / Would /Could you please do sth 请你做某事好吗37. Would you like (sb.) to do sth. 与Would you mind doing sth.38. 含有as soon as的句型39. 含有not...until的句型40. 含有for+ some time的句型41. be supposed/ willing to do...应该做某事42. 主语+find +it +形容词+动词不定式43. It seems that +从句44. I think/ believe/ feel/ agree that...及I agree/ disagree with you.45. I don’t think +宾语从句46. What do you mean by/ What does ...mean 是什么意思47.What do you think of…/How do you like …你认为…怎么样48. What + be + 主语 + like ...什么样49.It’s said/ reported that…据说/据报道50. one of the +形容词最高级+名词复数 ...…其中之一二、中考经常考到的重点句型详解:1. be + afraid of doing / that 从句这个句型表示“某人害怕做某事”,be动词随着句子的主语人称和数的变化而变化。
中考英语语法重点句型79句知识点以下是一些中考英语语法重点句型和知识点:1. It is + adj. + for/of sb. to do sth.(对于某人来说做某事是……的)2. There be 句型3. 宾语从句4. 状语从句(时间、条件、原因等)5. 祈使句6. 比较级和最高级7. 现在完成时8. 一般过去时9. 一般将来时10. 情态动词11. 被动语态12. 非谓语动词(动词不定式、动名词、分词)13. 特殊疑问句14. 反意疑问句15. 倒装句16. 强调句17. 感叹句18. 固定搭配和短语19. 句子成分(主语、谓语、宾语等)20. 冠词的用法21. It is + adj. + for/of sb. to do sth.(对于某人来说做某事是……的)22. There be 句型23. 宾语从句24. 状语从句(时间、条件、原因等)25. 祈使句26. 比较级和最高级27. 现在完成时28. 一般过去时29. 一般将来时30. 情态动词31. 被动语态32. 非谓语动词(动词不定式、动名词、分词)33. 特殊疑问句34. 反意疑问句35. 倒装句36. 强调句37. 感叹句38. 固定搭配和短语39. 句子成分(主语、谓语、宾语等)40. 冠词的用法41. It is + adj. + for/of sb. to do sth.(对于某人来说做某事是……的)42. There be 句型43. 宾语从句44. 状语从句(时间、条件、原因等)45. 祈使句46. 比较级和最高级47. 现在完成时48. 一般过去时49. 一般将来时50. 情态动词51. 被动语态52. 非谓语动词(动词不定式、动名词、分词)53. 特殊疑问句54. 反意疑问句55. 倒装句56. 强调句57. 感叹句58. 固定搭配和短语59. 句子成分(主语、谓语、宾语等)60. 冠词的用法61. It is + adj. + for/of sb. to do sth.(对于某人来说做某事是……的)62. There be 句型63. 宾语从句64. 状语从句(时间、条件、原因等)65. 祈使句66. 比较级和最高级67. 现在完成时68. 一般过去时69. 一般将来时70. 情态动词71. 被动语态72. 非谓语动词(动词不定式、动名词、分词)73. 特殊疑问句74. 反意疑问句75. 倒装句76. 强调句77. 感叹句78. 固定搭配和短语79. 句子成分(主语、谓语、宾语等)。
中考英语万能句型01.那就是 (说) ;亦即......That is to say,...That is ,...Namely,...That is to say, it is possible for it to show various colors.也就是说,它表现出多种多样的颜色是可能的。
02.基于这个理由......For this reason,...For this reason, prices can supposedly never go down.出于这个原因,可以推测价格不会下降。
03.我们有理由相信......We have reasons to believe (that)...We have abundant reasons to believe that he is a good comrade.我们有充分的理由相信他是一位好同志。
04.事实上,......As a matter of fact,...In fact ...As a matter of fact, you ve been there many times.事实上,你曾有过太多次这样的体验。
05.例如For example,...Take...for example.Let me take Edison for example.让我以爱迪生为例。
06.此外,我们不应忽视......Besides (In addition), ..we should not neglect...Besides, we should not neglect that everyone wants a friendly and peaceful society.此外,我们不应该忽视每个人都想要一个温馨祥和的社会。
07.相反地,......On the contrary,...By contrast,...On the contrary, many people defended him.相反,很多人还为他进行辩护。
中考50个基本句型1.as soon as 一…就“主将从现”I’ll tell him the news as soon as he comes to my house。
他一来到我家,我就告诉他这个消息.I went to bed as soon as I finished my homework。
2.as (形容词/副词原形) as …和…一样…(表示比较)Yao Ming is as popular as Liu Xiang in China。
在中国,姚明和刘翔一样受人喜爱。
He studies as hard as Betty。
3。
not so/as (形容词/副词原形) …as 不如(表示比较)Japan is not so/as big as China. 日本不如中国面积大.He doesn’t run as fast as Tom。
4.as … as possible 尽可能…I hope to see him as soon as possible. 我希望尽快见到他.Please get up as early as possible tomorrow.向某人要…You can ask me for help when you are in trouble.当你有困难时可以向我求助。
He always asks his father for some money。
叫/告诉/想要某人(别)去做什么The policeman asks the boys not to play with fire。
警察叫男孩子们不要玩火。
They tell Miss Lee to help them with their English.Do you want me to go with them?7. ask/tell sb how to do sth 问/告诉某人怎样做什么My brother asks me how to draw a horse.我的兄弟问我怎样画马。
初中英语中考必背重点句型(最新版)在初中英语学习阶段,句型和语法、词汇、短语一样重要。
如果你还没有掌握这些核心句型,那可要抓紧了哦。
句型1:There+be +主语+地点状语/ 时间状语There's a boat in the river.河里有条船。
句型2:What's wrong with+sb. / sth. ?What's wrong with your watch?你的手表有什么毛病?句型3:How do you like...?How do you like China?你觉得中国怎么样?句型4:What do you like about...?What do you like about China?你喜欢中国的什么?句型5:had better(not)+动词原形You'd better ask that policeman over there.你最好去问问那边的那个警察。
句型6:How+adj. / adv. +主语+谓语!What a/ an+adj. +n. +主语+谓语!How cold it is today!今天多冷啊!What a fine picture it is!多美的一幅图画呀!句型7:Thank+sb. +for(doing)sth.Thank you for coming to see me.感谢你来看我。
句型8:So+be/ 情态动词/ 助动词+主语He is a student. So am I.他是一个学生,我也是。
句型9:... not ... until ...He didn't have supper until his parents came back.直到他的父母回来他才吃饭。
句型10:比较级+and+比较级The baby cried harder and harder.那孩子哭得越来越厉害。
句型11:the +比较级,the +比较级The more one has,the more one wants.越有越贪。
句型12:... as +adj./ adv.+as ...…not as(so) +adj. / adv. +as ...Do you think that art is as important as music?你认为艺术和音乐一样重要吗?Last Sunday the weather was not so wet as it is today.上个星期天的天气不如今天的天气潮湿。
句型13:more/ less +adj.+than...I think art is less important than music.我认为艺术不如音乐重要。
句型14:stop…from doing sth.The Great Green Wall will stop the wind from blowing the earth away.绿色长城将阻挡风吹走土壤。
句型15:both ... and ...Both you and I are students.我和你都是学生。
句型16:either ...or...Either you or he is wrong .不是你错就是他错。
句型17:neither ... nor ...Neither he nor I am a student.我和他都不是学生。
句型18:... as soon as ...As soon as I see him,I'll give him the message.我一见到他,我就把你的消息告诉他。
句型19:... so+adj. / adv.+that ...I was so tired that I didn't want to speak.我累得连话也不想说了。
句型20:Though...+主句Though I like writing to my pen-friend,it takes a lot of time.虽然我喜欢给笔友写信,但它要耗费我大量时间。
句型21:be going toThis afternoon I'm going to buy a Qisu English book.今天下午我要去买本奇速英语书。
句型22:be different fromI think this is different from Chinese names.我认为这与汉语名字不同。
句型23:Welcome(back)to...Welcome back to school!欢迎回到学校!句型24:have fun doingWe're going to have fun learning and speaking English this term.这学期我们将兴味盎然地学习和讲英语。
句型25:... because ... / ...,so ...I don't know all your names because this is our first lesson.因为这是我们的第一节课,所以我并不知道你们所有人的名字。
句型26:Why don't you ... / Why not ...Why don't you come to school a little earlier?为什么不早点到校呢?句型27:make itLet's make it half past nine.让我们定在九点半吧!句型28:have nothing to doThey have nothing to do every day.他们每天无所事事。
句型29:be sure/ be sure of/ about sth. / be sure to do sb.I think so, but I'm not sure.我想是这样,但不敢确定。
I was not sure of / about the way,so I asked someone.我对于怎么走没有把握,所以我问别人了。
句型30:between ... and ...There is a shop between the hospital and the school.在那家医院和那所学校之间有一家商店。
句型31:keep sb. / sth. +adj./ V-ing/ 介词补语/ adv.You must keep your classroom clean.你们必须保持教室干净。
Sorry to have kept you waiting.对不起,让你久等。
Can you keep him in the room ?你能让他在这个房里吗?Keep them here.让他们在这儿呆着。
句型32:find +宾语+宾补He finds it very hard to travel around the big city .他发现要环游这个大城市是很难的。
句型33:... not ... anymore/ longerThe old man doesn't travel any more.这位老人不再旅行了。
He isn't a thief any longer.他不再是个贼。
句型34:What's the weather like...?What's the weather like in spring in your hometown?在你们家乡春天天气怎么样?句型35:There is no time to do/ have no time to doThere was no time to think.没有时间思考。
I have no time to go home for lunch.我没有时间回家吃午饭。
句型36:Help oneself to...Help yourself to some fish.吃鱼吧!句型37:used to doI used to read this kind of story books.我过去常读这种故事书。
句型38:borrow ... fromI borrowed a Qisu English book from him.我从他那借了一本奇速英语书。
句型39:lend sb. sth. / lend sth. to sb.He lent me a story book / He lent a story book to me.他借了本故事书给我。
句型40:have been toHave you ever been to Hawaii?你曾去过夏威夷吗?句型41:have gone toWhere's he?He's gone to Washington.他在哪儿?他去华盛顿了。
句型42:be famous forHawaii is famous for its beautiful beaches.夏威夷以它美丽的海滩而出名。
句型43:No matter +疑问句+主句No matter when you come,you are welcomed.无论你们什么时候来,都受欢迎。
句型44:be afraid(of / to do / that...)I'm afraid not.恐怕不能。
Don't be afraid of making mistakes when speaking English.当说英语时不要害怕犯错误。
句型45:... as ... as possible / ... as ... as sb canI hope to see him as soon as possible.我希望能尽快见到他。
He ran here as fast as he could.他尽最大努力跑到这儿。
句型46:practise / enjoy / finish doingA young man practised speaking English with Mr Green.一个年青人和格林先生练习说英语。
Tom enjoys playing football very much.汤姆很喜欢踢足球。
He finished reading the story book.他看完了那本故事书。
句型47:It's said that ...It's said that one of the most dangerous sharks is the Great White Shark.据说最危险的鲨鱼之一是大白鲨。