高考知识点英语必考句型
高考英语必考句型
1.as if/though+主语+did/had done…好像……(表示现在或将来的情况用过去时;表示过去的情况用过去完成时) [参考句型4]
2.情态动词+动词不定式完成结构的用法
could have done "本来可以……"(表示过去没有实现的可能)。
might have done"本来可能……;本来应该或可以做某事"(实际没有发生;含有轻微的责备语气。
should/ought to have done "本来该做某事"(而实际未做)
should not/ought not to have done "本来不该做"(实际却做过了，含有责备语气)
needn't have done "本来不必做"(但是已经做过了)
would rather have done "当时宁愿做了某事"(实际没有做过);否定式would rather not have done表达相反意思，两者都有表示"后悔"之意。
高考英语重点句型
1."wish +宾语从句"，表示不大可能实现的愿望
表示现在的愿望：主语+过去时;
表示过去的愿望：主语+had done;
表示将来的愿望：主语+would/could do
2.It's high/about time that somebody did (shou ld do) (should通常不省略) …早就该……
3.as, though, although引导的让步状语从句。
[注意]although位于句首;though位于句首或句中;as 位于句中=though。它的词序是把句中强调的形容词、副词、动词或名词放在连词前。
必考的重点高考英语句型
1.would rather that somebody did…"宁愿……;更愿意……"(表示现在或将来的愿望)
would rather that somebody had done…"宁愿……;更愿意……"(表示过去的愿望)
2.…before…特殊用法(1)"没来得及……就……"
…before…特殊用法(2)"过了多久才……"或"动作进行到什么程度才……"
3.It was + 时间段+before…."过了多久才(怎么样)……"
It was not long before…."不久，就……"
It will (not) be+时间段+before…."要过多久(不久)……才……"(before从句谓语动词要用一般时态)
高考英语口语必备短句
1. I see. 我明白了。
2. I quit! 我不干了!
3. Let go! 放手!
4. Me too. 我也是。
5. My god! 天哪!
6. No way! 不行!
7. Come on. 来吧(赶快)
2017高考英语必考知识点总结 2017高考英语必考知识点：as引导的非限制性定语从句 在as引导的非限制性定语从句中，连接代词as在句子中可以作主语、宾语或表语等，可以指人或物。其在定语从句中的位置比较灵活，即可以在句子前面，在句子中间或句子末尾。常用的结构有：as we all know; as is well known to ; as is often the case; as is said/mentioned above; as has been said before; as I told you before; as is evident; as often happens; as can be seen; as is/was expected; as we expect; as I can remember等。 [注意1]as通常只指整个句子的内容，不表示部分内容。 [注意2]as引导的非限制性定语从句通常指事先可以预料到的料想到的，表达好的方面。 [注意3]as引导限制性定语从句时，常构成the same as ; such as ; so/as as 等结构。在从句中既可以指人、物，也可以指整个句子。 [例句] This is also part of your work, as I told you before. 我曾告诉过你，这也是你工作的一部分。 The man was a teacher, as was evident from his way of speaking.
从那人说话的样子可明显看出，他是个老师。 Such ideas as he hits on are worthless. 像他那样偶然想起的主意是无用的。 It s the same story as I heard from her yesterday. 这故事跟我从她那儿听到的相同。 He will marry as pretty a girl as he can find. 他要尽可能找漂亮的女孩结婚。 Such people as have made great contributions to the world should be greatly respected.那些对世界做出巨大贡献的人们应该受到极大的尊重。 2017高考英语必考知识点：which引导的非限制性定语从句 which引导的非限制性定语从句既可以指整个句子内容，也可以指句子的部分内容(如单词或词组等)，在句子中可以作主语、宾语(动词或介词的)、定语等。注意它在句子中的位置：只能放在主句后，不能放在主句前。表达的内容是不好的、事先没有预料到的等时，常用which，只指物。 [例句] Yellowstone National Park, which is in Wyoming, is one of the
2020年高考：英语知识点高频必考归纳 1.able 用法：be able to do Note: 反义词unable表示不能，而disabled表示残疾的。 be able to do可以表示经过艰难困苦才能做到的事。 2.abroad 用法：表示到（在）国外，是一个副词，前面不加介词。 Note: 可以说from abroad, 表示从国外回来。 3.admit 用法：表示承认的时候后面要加上动名词形式。 Note: 表示允许进入的时候与介词to搭配。 4.advise 用法：advise sb. to do; advise doing Note: 后面的宾语从句要用虚拟语气。即：advise that sb. (should) do的形式。 5.afford 用法：通常与动词不定式搭配使用。 Note: 前面需要有be able to或can等词。 6.after 用法：表示在时间、空间之后；be after表示追寻。 Note: 用在将来时的时候后面接一时间点，而in接一个时间段，如：after 3 o’clock; in 3 days. 7.agree 用法：与介词on, to, with及动词不定式搭配。 Note: agree on表示达成一致；agree to表示批准；agree with表示同意某人说的话。 8.alive 用法：表语性形容词，在句中只能作表语，不能作定语。 Note: 可以作状语使用，表示活活地，如：bury sb. alive. 9.allow 用法：allow doing; allow sb. to do Note: 可以表示允许进入，如：Please allow me in. 10.among 用法：用在三者或三者以上的群体中。 Note: 还可以表示其中之一，如：He is among the best. 11.and 用法：用于连接两个词、短语、句子或其他相同结构。 Note: 与祈使句搭配时往往可以表示条件。如：Work hard, and you’ll succeed sooner or later. 12.another 用法：表示又一个，泛指，相当于one more的含义。 Note: 不能直接加复数名词，需要与一个数词搭配，如：another 2 weeks. 13.answer 用法：及物动词，但在作名词时要与介词to搭配。 Note: 可以表示接电话、应门等。如：answer the phone/door. 14.anxious 用法：be anxious for/about/to do Note: be anxious about表示担心；be anxious for表示盼望得到。 15.appear 用法：不及物动词，没有宾语，没有被动语态。 Note: 还可以作为系动词，与seem同义，表示看起来……。 16.arrive 用法：arrive at表示到一个小地方；arrive in表示到一个大地方。 Note: 引申含义表示得出，如：arrive at a decision/conclusion. 17.ask 用法：ask to do; ask sb. to do; ask for Note: 后面的宾语从句要用虚拟语气。即：ask that sb. (should) do的形式。 18.asleep 用法：表语性形容词，在句中只能作表语，不能作定语。 Note: 通常与动词be及fall搭配；sound asleep表示熟睡。 19.attend 用法：表示参加，后面经常加上meeting, lecture, conference, class, school, wedding, funeral等词；也可以表示照顾，照料。 Note: attend to可以表示处理、照料等。 20.attention 用法：pay attention to; draw/catch sb’s attention Note: 写通知时的常用语：May I have your attention, please?
高中英语必背句型 高中英语必背句型 一not…until引导时间状语从句有三种句型：陈述语序、倒装语序、强调语序。 1 陈述语序---在肯定句中，主句要用延续性动词；在否定句中，until可以和非延续性动词连用，意为“直到……才，在……之前不”。 翻译：我会一直等到他回来。________________直到12点他才离开。____________ .My uncle____until he was forty-five. A.married B.didn’t marry C.was not marrying D.would marry 2 not ... until "的强调句----It is/was not until + 被强调部分+ that + 其它部分 普通句：He didn't go to bed until/ till his wife came back. 强调句：It was not until his wife came back that he went to bed. 练习：普通句：She didn't go to bed until her father came back from work. = He didn’t finish his work until yesterday.= 3 not..until 倒装句----当not````until用于句首时，主句用倒装，从句不用。部分倒装是指将谓语的一部分如助动词或情态动词倒装至主语之前。其结构为:Not until+从句/表时间的词+助动词+(主句)主语+谓语+... 普通句：He didn’t finish his work until yesterday. 倒装句→Not until yesterday did he finish his work. He didn’t go to school until he was ten.= She didn't go to bed until her father came back from work. = 高考题1. It was not until late in the evening ___her husband arrived home .A. which B. when C. that D. how 2. It _____ we had stayed together for a couple of weeks _____ I found we had a lot in common. A. was until; when B. was until; that C. wasn’t until; when D. wasn’t until; that 3. It was not _____ she took off her dark glasses _____ I realized she was a famous film star. A. when ; that B. until ; that C. until ; when D. when ; then 4 Not until all the fish died in the river ____how serious the pollution was. A. did the villagers realize B. the villagers realized C. the villagers did realize D. didn't the villagers realize 二“这是／那是／这将是某人第几次干某事”句型。 It/This /That is the first (second,third..)time that…(从句谓语动词用现在完成时) It was the first (second,third ) that…(从句谓语动词用过去完成时) 当主句的谓语动词用is时，从句谓语动词用现在完成时；当主句的谓语动词用was时，从句的谓语动词用过去完成 翻译：这是我第一次访问这城市。这对夫妇告诉我们那是他们第四次游西湖。 This is the first time we ______ a film in the cinema together as a family. A. seeB. had seen C. saw D. have seen —Do you know our town at all？—No，this is the first time I_____ here．A．wasB．have been C．cameD．am coming 三、It is ／was ＋过去分词＋that从句。 这一句型中常用的过去分词有said，reported，known，thought，believed，suggested等。译为“据说（报道……）”。同样，it是形式主语，that从句是真正的
江苏高考英语语法专题复习知识点汇总 一、冠词The Article 知识要点： 冠词是一种虚词，放在名词的前面，帮助说明名词的含义。冠词分不定冠词（The Indefinite Article）和定冠词（The definite Article）两种。a (an) 是不定冠词，a用在辅音之前：如a book, a man; an用在元音之前，如：an old man, an hour, an interesting book等。the是定冠词。 一、不定冠词的用法 1、指人或事物的某一种类（泛指）。这是不定冠词a (an)的基本用法。如：She is a girl. I am a teacher. Please pass me an apple. 2、指某人或某物，但不具体说明何人或何物。如：He borrowed a story-book from the library. A Li is looking for you. 一位姓李的同志正在找你。 3、表示数量，有“一”的意思，但数的概念没有one强烈。如： I have a mouth, a nose and two eyes. 4、用于某些固定词组中。如： a bit, a few, a little, a lot of, a piece of, a cup of, a glass of, a pile of, a pair of, have a good time, for a while, for a long time等。 5、用在抽象名词前，表具体的介绍——a + 抽象名词，起具体化的作用。如： This little girl is a joy to her parents. 这女孩对她父母来说是一个乐趣。 It is a pleasure to talk with you. 跟您交谈真是一件愉快的事情。 It is an honour to me to attend the meeting. 参加这个会，对我来说是一种荣誉。 二、定冠词的用法： 1、特指某（些）人或某（些）事物。这是定冠词the的基本用法。如： Beijing is the capital of China. The pen on the desk is mine. 2、指谈话双方都知道的人或事物。如： Where is the teacher? Open the window, please. 3、指上文提过的人或事物（第二次出现）。如： There was a chair by the window. On the chair sat a young woman with a baby in her arms. The baby was thin. 4、用在世界上独一无二的事物前。如：
2018年高考英语单词必考知识点总结归纳 一、一个星期七天 1. Monday 2. Tuesday 3. Wednesday 4. Thursday 5. Friday 6. Saturday 7. Sunday 二、一年十二个月 1. January 2. February 3. March 4. April 5. May 6. June 7. July 8. August 9. September 10. October 11. November 12. December 三、一年四季 1. spring 2. summer 3. autumn 4. winter 四、容易拼写错的数字 1. eighth第八 2. ninth第九 3. forty四十 4. twelfth第十二 5. twentieth第二十 四、亲属称呼 1. daughter (女儿) 2. niece (女性晚辈) 3. nephew (男性晚辈) 4. cousin (同辈兄弟姐妹) 5. aunt (女性长辈) 6. uncle (男性长辈) 五、以下动词加-ed或-ing要双写最后一个字母
1. regret (regretted, regretting) 后悔 2. control (controlled, controlling) 控制 3. admit (admitted, admitting) 承认 4. occur (occurred, occurring) 出现 5. prefer (preferred, preferring) 宁愿 6. refer (referred, referring) 提到 7. forget (forgetting ) 忘记 8. permit (permitted, permitting)允许 9. equip (equipped, equipping) 装备 注意：quarrel, signal, travel中的l可双写（英国英语）也可不双写（美国英语） 六、部分过去式和过去分词不规则变化的动词 1. broadcast (broadcast, broadcast) 广播 2. flee (fled, fled) 逃跑 3. forbid (forbade, forbidden) 禁止 4. forgive (forgave, forgiven) 原谅 5. freeze (froze, frozen) 结冰 6. hang (作“绞死”讲，是规则的；作“悬挂”讲，其过去式过去分词都是hung) 7. lie (作“说谎”讲时，是规则的；作“位于”讲时，其过去式是lay，过去分词是lain) 8. seek (sought, sought) 寻求 9. shake (shook, shaken) 发抖 10. sing (sang, sung) 唱歌
高考英语知识串讲 第1讲 一、Language Points 1. share v. 分享、合用：share sth with sb n. 一份，股份 spare a. 业余的，备用的：spare time, a spare tire v. 抽出，匀给：spare me five minutes/ spare one of sandwiches for the boy spare no efforts：不遗余力 spare no expense：不惜工本 save v. 节省，救出 2. He felt lucky to have survived the war. 3. with sb about/over sth：和某人就某事争论 argue for/against sth：赞成/反对… Sb into/out of (doing) sth：说服某人做/不做某事 4. have/make/let/see/watch/listen to +宾+宾补(do/doing/done) get sb to do sth have+宾+宾补(to do/to be done) 5. So+同一主语+助动词 So/neither/nor+助动词+另一主语 So it is/was with+另一主语 6. should/ought to/need/could/might/would+do/have done 7. except/but/except for/except that/except wh-clause besides/in addition apart from but for=without 8. The first time+从句 For the first time：作时间状语 It’s the first time+that-clause(完成时) the first+名词+to do 9. most most of the +n.(pl)/pron. the majority of (the) mostly: 主要地（状） 10. be equal to sth：与…相等 be equal to (doing) sth：胜任(做)某事 equal sth：与…相等 equal sb in sth：在…方面与某人匹敌 11. compar e…to/with… compared to/wit h… 12. a great many several/two dozen/hundred +n.(pl.) (many) dozens of a great many of +the/these/those+n.(pl.) seveal/two dozen of +pron. 13. much too+adj/adv(原级) too much+n.(u.) too many+n.(pl.) 14. 没有被动态 come about(主要用于疑问句、否定句) happen(表示偶然、碰巧之意) sth+ take place(多表示有组织、有计划) break out(指战争、灾害、疾病等的爆发) occur(与happen通用) It occurs to sb that/to d o…：某人突然想起…
40个高级句型，期中考试英语写作20+必备！ 1. 主语+ cannot emphasize the importance of … too much.(再怎么强调……的重要性也不为过。) 例如：We cannot emphasize the importance of protecting our eyes too much. 我们再怎么强调保护眼睛的重要性都不为过。 2. There is no need for sb to do sth.\ for sth.(某人没有必要做……) 例如：There is no need for you to bring more food. 不需你拿来更多的食物了。 3. By +doing…，主语+can …. (借着……，……能够……) 例如：By taking exercise, we can always stay healthy. 借着做运动，我们能够始终保持健康。 4. … enable + sb.+ to + do…. (……使……能够……) 例如：Listening to music enables us to feel relaxed. 听音乐使我们能够感觉轻松。 5. On no account can we + do…. (我们绝对不能……) 例如：On no account can we ignore the value of knowledge. 我们绝对不能忽略知识的价值。 6. What will happen to sb. (某人将会怎样)
例如：What will happen to the orphan 那个孤儿将会怎样 7. For the past + 时间，主语 + 现在完成式/现在完成进行时…. (过去……时间来，……一直……) 例如：For the past two years，I have been busy preparing for the examination. 过去两年来，我一直忙着准备考试。 8. It pays to + do….(……是值得的。) 例如：It pays to help others. 帮助别人是值得的。 9. 主语+ be based on….(以……为基础) 例如：The progress of thee society is based on harmony. 社会的进步是以和谐为基础的。 10. 主语+ do one’s best to do….(尽全力做……) 例如：We should do our best to achieve our goal in life. 我们应尽全力去达成我们的人生目标。 注意：“尽全力”在英语中有不同表达。 例如：We should spare no effort/make every effort to beautify our environment.
高考英语重点知识点大全 主语从句 主语从句是在复合句中充当主语的从句，通常放在主句谓语动词之前或由形式主语it代替，而本身放在句子末尾。 1. It 作形式主语和it引导强调句的比较。 It 作形式主语代替主语从句，主要是为了平衡句子结构，主语从句的连接词没有变化。而it引导的强调句则是对句子某一部分进行强调，无论强调的是什么成分，都可用连词that。被强调部分指人是也可用who/whom。 例如： It is a pity that you didn’t go to see the film. It doesn’t interest me whether you succeed or not. It is in the morning that the murder took place. It is John that broke the window. 2. 用it 作形式主语的结构。 (1) It is +名词+从句 It is a fact that …事实是… It is an honor that …非常荣幸 It is common knowledge that …是常识 (2) it is +形容词+从句
It is natural that…很自然… It is strange that…奇怪的是… (3) it is +不及物动词+从句 It seems that…似乎… It happened that…碰巧… (4) it +过去分词+从句 It is reported that…据报道… It has been proved that…已证实… 3. 主语从句不可位于句首的五种情况。 (1) if 引导的主语从句不可居于复合句句首。 (2) It is said ，(reported) …结构中的主语从句不可提前。 例如： It is said that President Jingo will visit our school next week. (right) That President Jiang will visit our school next week is said. (wrong) (3) It happens…，It occurs…结构中的主语从句不可提前。 例如： It occurred to him that he failed in the examination. (right) That he failed in the examination occurred to him. (wrong) (4) It doesn’t matter how/whether …结构中的主语从句不可提前。
高考英语完形填空专题 解题技巧与方法指导 一、利用首句来解题，根据全文来选择 首句一般不设空。因此我们应重视首句，并利用首句预测短文的问 题和全文内容。 1. I did very badly at school. My headmaster thought I was and when I was 14 he said, “You’re never going to be anything but a failure. A. bright B. useless C. simple D. hopeful 2. Dorothy Brown was very happy as she sat in the theatre listening to the music. Today her little daughter Lauren was giving her first concert. She had been waiting for this moment for years and years. “Now it is here last,” she thought. “How beautiful her ___1___ is.” The song made her go back to the days when she was Lauren’s age As a young girl, Dorothy wanted to be a concert singer. She studied ___2___ in France, Italy and in the United States. “You can become a her teachers told her. “But y ou must be fine ___3___ in the future,” prepared to study hard and work for many years. 1. A. voice B. face C. dress D. life 2. A. French B. music C. piano D. dance 3. A. actress B. student C. singer D. dancer 二、根据上下文语境，合理推断来解题 1. Our father was a struggling lawyer, but I always knew he was . He
2018年高考英语作文必背句型(精品) (名师总结，值得下载背诵) 名师总结高考英语作文必背句型，会为你的英语写作提供清晰 的思路和丰富的素材，多看、多记、多思，英语成绩定会有质的飞 跃(下载下来，每天进行背诵，英语语感水平将迅速提高，考场加10-20分很轻松！) 一、高考英语作文八种实用句型大汇总 一、开头句型 1. As far as ...am/are/is concerned 就……而言 2. It goes without saying that... 不言而喻 3. It can be said with certainty that... 可以肯定地说 4. As the proverb says，正如谚语所说的/常言道 5. It has to be noticed that... 必须注意到 6. It's generally recognized that... 人们普遍认为 7. It's likely that ... 这可能是因为 8. It's hardly that... 这是很难的 9. It's hardly too much to say that... 毫不夸张地说;；说什么也不过分 10. What calls for special attention is that... 需要特别注意的是 11. There's no denying the fact that... 毫无疑问，无可否认 12. Nothing is more important than the fact that... 没有什么比这更重要的是 13. what's far more important is that... 更重要的是 二、衔接句型
21. 对于某人来说很熟悉be familiar to sb. 22. 因为…而着名be famous for 23. 作为…而着名be famous as 24. 为全世界的人所知名be famous to people all over the world 25. 据我所知as far as I know 26. 被…吸引住be fascinated with/by sth. 27. 举行告别会hold a farewell party 28. 过时了不时髦了be out of fashion 29. 失宠失利；lose favour 30. 支持；赞成be in favour of 31. 帮某人忙ask a favour of sb. 32. 用…来喂养… feed…on/with… 33. 吃，以…为食物feed on 34. 把…喂给…吃feed sth. to sb. 35. 与困难作斗争fight against difficulities 36. 算出；弄清楚figure out 37. 装满be filled with 38. 决赛the finals 39. 因做某事而罚某人款fine sb. for doing sth. 40. 着火catch fire 41. 把火扑灭put out a fire 42. 被解雇了be fired/dismissed 43. 试穿fit on 44. 适合(做)… be fit for/to do sth. 45. 保持健康keep fit 46. 注视… fix one’s eye s on/upon
47. 长距离飞行 a long distance flight 48. 流利的英语fluent English 49. 集中注意力focus attention /mind on 50. 民间音乐focus attention/mind on 51. 如下as follows 52. 听从忠告follow one’s advice 53. 食物链food train 54. 某人做某事是愚蠢的It’s foolish of sb. to do sth. 55. 禁止某人做某事forbid sb. to do sth 56. 禁止做某事forbid doing sth. 57. 地心引力的力量the force of gravity 58. 强迫某人做某事force sb. to do sth. 59. 天气预报the weather forecast 60. 填写表格fill in a form 61. 以…的形式in the form of 62. 前任总统former president/student/wife 63. 发财make a fortune 64. 提出put forward 65. 期盼;等待look forward to sth. 66. 释放某人set sb. free 67. 没有…的；免除的be free of/from 68. 冰点freezing point 69. 冷冻食物frozen food 70. 淡水fresh water 71. 与---交朋友make friends with 72. 把某人吓死frighten sb. to death 73. 从那时起from then on
最新2020高考英语知识点整理 高考英语知识点：英语第一轮复习知识点 一、在复习词汇时，学生要学会自我总结 通过自我总结，学生主动取得了知识的精华，并转化为适合自己需要的东西。善于归纳中学教材中常用词汇的基本用法及相关知识点的异同，如：mean一词，可以表示"意思是"、"意味着"，常用于mean something/doing something，而在"mean to do something"结构中，则是"计划"、"打算"之意。善于对有共同用法或特点的词汇进行归纳，形成相关的小知识链。如：suggest(建议)，insist(坚持要求)，demand(要求)、ask(请求)等后接的宾语从句中都要用虚拟语气。善于归纳近义词、同义词，如：在复习join的用法时，可以联系join in，take part in，join sb in归纳复习之后，要做对应练习。这样才能扩大词汇量，又可以提高实际运用英语能力。 二、句型复习应结合课本的例句进行 中学英语课本的句型很多，有强调句、祈使句、倒装句、省略句、反意疑问句、插入语等句型。这些都是高考的常考点。我们通过复习
课本的例句，总结归纳这些句型的特点、用法及它们的适用条件，既掌握英语的基本句型用法，又可以促进我们的英语谴词造句能力。 三、语法复习要考虑语境 通过语境来训练我们的语言使用能力。每一个语法项目的复习可分三个层次进行：复习要点、主要考点、精选练习。如果能做到这一点，定能做到学以致用。现在高考英语试题淡化了语法，但学好语法却是正确和规范运用英语的保证。因此，语法复习不可轻视。 四、重视交际用语复习 如今高考试题越来越重视考查学生的英语交际能力，而且中学英语教材的每一单元都有以交际功能贯穿的对话课。因此，学生在复习时，要注意对各单元的对话进行排列分类，整理归纳，总结出相关话题的典型句型，并设想具体语境，亲身实践，学会运用。如果交际用语复习和听力复习结合起来进行，效果更佳。 高考英语知识点：英语时态知识点大全 般现在时
高考英语常用经典句型复习 1、as 句型： (1) as引导方式状语从句句型：“按照……；正如……”例：We do farm work as the old peasant teaches us. (2) as＋形容词／副词原级＋（a ／an）＋名词＋as ;否定式：not as/so …..as 例：He is as good a player as his sister． (3) such + n. + as to do 如此……以致于……例：She is such a fool as to believe what he said. (4) so + adj./adv. + as to do sth 如此……以致于……例：He was so strong as to carry the heavy box. (5) such --- as---象……之类的…… （接名词或定语从句）例：He wished to be such a man as Lei Feng was. (6) the same ＋名词＋as 和……一样的…… （接名词或定语从句） 例：He is not the same man as he used to be 他不是从前的那样子了。 (7) as 引导非限制性定语从句例：As is known to us, knowledge is power. (8)引导时间状语从句。与while意义相近例：We get wiser as we get older. (9) 引导原因状语从句，与because的用法相近例：As it was getting very late, we soon turned back. (10) 引导让步状语从句例：Child as he is, he knows much about science. 2、when 句型： (1) be doing sth ---- when --- 例：He was still smiling when the door opened and his wife came in. (2) be about to do sth --- when --- 例：We were about to start when it began to rain. (3) had not done sth --- when ---/ hardly --- when --- 例：He had not fallen asleep when the telephone rang. (4) had just done ---- when --- 例：I had just gone to bed after a very hard day when the phone rang. 3、seem 句型： (1) It +seems + that从句例：It seemed that everyone was satisfied. (2) It seems to sb that --- 例：It seems to me that she is right.我看她是对的， (3) There seems to be --- 例：There seems to be a heavy rain.看上去要有一场大雨。 (4) It seems as if --- 例：It seemed that she couldn't come to class.看样子她不能来上课了。 4、表示“相差……；增加了……；增加到……”句型： (1) She is taller than I by three inches. 她比我高三英寸 (2) There is one year between us. 我们之间相差一岁。 (3)She is three years old than I她比我大三岁。 (4) They have increased the price by 50%. 他们把价格上涨了50% 5、too句型： (1) too...to do sth． 例：Politics is too important to be left to the politicians． （＝Politics is so important that it can't be left to the politicians．）政治太重要了，不能由政治家来决定。 (2) only too --- to do sth 例：I shall be only too pleased to get home.我要回到家里就非常高兴。 (3) too + adj + for sth 例：These shoes are much too small for me.我穿这双鞋太小了。 (4) too + adj + a + n. 例：This is too difficult a text for me.这篇课文对我来说太难了。 (5)can't … too +形容词无论……也不为过 例：We cannot emphasize the importance of protecting our eyes too much. 6、before 句型： (1) before sb can/ could … 某人还没来得及……例：Before I could get in a word ，he had measured me． (2) It will be +时间+ before + 还有多长时间…… 例：It will be 4 years before he graduates. (3) had done some timebefore（才……）例：We had sailed four days and four nights before we saw land. (4)had not done --- before ---不到……就……例：We hadn’t run a mile before he felt tired. (5) It was not +一段时间+ before不多久就……例：It wasn’t two years before he left the country. 7、强调句型： (1) It is ／was ＋被强调部分＋that（who）... 例：It was I who wrote to my uncle yesterday．