Unit 4 Body language单元语言点.pdf

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Language Study #Para 1 #Para 2 comprehend: v. to understand something that is complicated or difficult 理解、领会、明白e.g. The dream is easy to describe, difficult to comprehend. I did not fully comprehend what had happened. 我还没有完全明白到底发生了什么事情 I could comprehend the feeling, and share both its strength and truth. 我可以理解这种感情，而且分享它的力量和真诚。

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半透膜：物质的透过与否取决于半透膜孔隙直径的大小（如：动物膀胱、玻璃纸、肠衣、鸡蛋的卵壳膜等）选择透过性膜：细胞膜上具有载体，且不同生物的细胞膜上载体种类和数量不同，构成了对不同物质吸收与否和吸收多少的选择性。（如：细胞膜等各种生物膜）第二节生物膜的流动镶嵌模型一、探索历程（略，见P65-67）、细胞融合实验二、流动镶嵌模型的基本内容 ▲磷脂双分子层构成了膜的基本支架 ▲蛋白质分子有的镶嵌在磷脂双分子层表面，有的部分或全部嵌入磷脂双分子层中，有的横跨整个磷脂双分子层 ▲磷脂双分子层和大多数蛋白质分子可以运动三、糖蛋白（糖被）组成：由细胞膜上的蛋白质与糖类结合形成。作用：细胞识别、免疫反应、血型鉴定、保护润滑等。第三节物质跨膜运输的方式一、被动运输：物质进出细胞，顺浓度梯度的扩散，称为被动运输。 (1)自由扩散：物质通过简单的扩散作用进出细胞 (2)协助扩散：进出细胞的物质借助载体蛋白的扩散二、主动运输：从低浓度一侧运输到高浓度一侧，需要载体蛋白的协助，同时还需要消耗细胞内化学反应所释放的能量，这种方式叫做主动运输。四、大分子物质进出细胞的方式：胞吞、胞吐。（如分泌蛋白的形成）利用原理：膜的流动性两种方式都需要能量，但不需要跨膜，通过囊泡的形式运输。五、影响几种跨膜运输方式的条件 1、自由扩散：内外浓度差 2、协助扩散：内外浓度差、载体数量 3、主动运势：载体数量、A TP量

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IhappenedtoseePeteronthewaytothebookstoreyesterday.昨天我去书店的路上碰巧遇见了彼得。 ItsohappenedthatIsawPeteronthewaytothebookstoreyesterday.昨天我去书店的路上碰巧遇见了彼得。 Ihappenedtobeoutwhenhecalled.他来访时，恰巧我出去了。 (=IthappenedthatIwasoutwhenhecalled.) IhappenedonjustthethingIhadbeenlookingfor.我偶然发现了我所要找的东西。 3.rightaway毫不迟疑，立刻 Heisill;youshouldcallinthedoctorrightaway.他病了,你应该立即请大夫来。 4.Asmellygascameoutofthecracks.裂缝里冒出臭气。 5.Inthefarmyards,thechickensandeventhepigsweretoonervoustoeat.农家大院里，鸡甚至猪都紧张得不想吃食。 6.Buttheonemillionpeopleofthecity,whothoughtlittleoftheseevents,wereasleepasusualthatnight.但是，这个城市的一百万居民都没有把这些情况当一回事，当天晚上照常睡着了。 7.Itseemedasiftheworldwasatanend.世界似乎到了末日。从句表示“(在某人)看来好像;似乎” ①Itseems/looks/appearsasif/though…看起来好像… ②Sb./Sth.looksasif/though…(不用seem/appear) ③Thereseems/appears(tobe)…(不用look) Thereappearstohavebeenamistake.=Itappearsthattherehasbeenamistake. ④Itseemsso.=Soitseems.看来似乎是这样。 8.Infifteenterriblesecondsalargecitylayinruins. 在可怕的15秒钟内，一座大城市就沦落为一片废墟之中。

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高中英语学习材料 ***鼎尚图文理制作*** 巩固练习一、根据提示完成句子。 1. Dead and _______(受伤的) people lay everywhere after the terrible accident. 2. That place is dirty and _______（有气味的）. 3. In the city, the water pipes in some buildings cracked and ______（爆炸）. 4. The firemen ________(营救) the boy from the burning house. 5. It is reported that there were only 5 _____ (幸存者) in the accident. 6. A great many houses were ________（毁坏）in the earthquakes and many people became homeless. 7. The railway tracks were now ______（没用的）pieces of steel. 二．选择词组并用其正确形式填空。 think little of, dig out, in ruins, right away, be trapped in, as if, be proud of, blow away, at en end, fall down, a great number of, suffer from, be buried in 1. We are expecting to ________some important facts. 2. The whole city lay ___________ after the terrible earthquake. 3. He ___________ my advice and that made me angry. 4. Suddenly a strong wind came and _______ the roofs of their new houses. 5. Some people will feel happy _____ if they have a book in their hands. 6. The little girl ________ because of running too fast. 7. He has grasped ______ English idioms this term. 8. I must warn you that my patience is almost ______. 9. She _______ her son, who did well at university and now is a doctor. 10. My father has _______ his heart illness for about 20 years. 11. He acted______ he were a doctor. 12. Since she left, he is ______ his work. 13. In that area, many dogs are trained to look for people ______ the snow. 三、单项选择 1. I’d prefer _____ in the office r ather than __________ at home watching TV. A. working; staying B. working; stay C. to work; stay D. work; to stay 2. There is nothing more I can try _____ you to stay, so I wish you good luck. A. being persuaded B. persuading C. to be persuaded D. to persuade 3. After ____ the old wall, the explorers found something new. A. digging into B. digging out C. digging up D. digging down 4. If a person has not had enough sleep, his actions will give him ______ during the day.

unit4 Astronomy 语言点知识讲解

目标认知重点词汇： explode，escape ，depend ，encourage，violent，presence，allow，lay，exist，remain，prevent，force，pull，cheer，exhaust，warn，possible 重点短语： in one’s turn，in time，a bit of 重点句型： “be to+动词原形”的用法 it作形式宾语 whether的用法知识讲解重点词汇【高清课堂：403623Astronomy 探秘天文学精讲词汇】 explode 重点例句： It exploded loudly with fire and rock. explode (v.)爆炸，爆发 (1) explode with anger 勃然大怒 explode into laughter 放声大笑 the exploding world population 迅速增长的世界人口 (2) explosion (n.)爆炸 explosive (adj.)易爆的 (n.) 爆炸物；炸药；迸发(感情)； (人口等)突增完成句子 (1)Two bombs ________ (爆炸) in front of the park gate，causing two deaths. (2)Suddenly Charles _______________________ (勃然大怒)． (3)There will be no standing room on the earth ________________________________________ (由于激增的世界人口)． escape 重点例句： They are putting too much carbon dioxide into the atmosphere, which prevent heat from escaping from the earth into space. escape (v.)逃跑，逃避(n.)逃脱作为动词，常用于下列结构或短语中： escape from...从……逃走

高中化学--必修一第四章知识点总结(详细)

与碱溶液反应Cl2 + 2NaOH = NaCl + NaClO + H2O 2Cl2 + 2Ca(OH)2 = CaCl2 + Ca(ClO)2 + 2H2O 与盐溶液反应Cl2 + Na2SO3 + H2O = 2HCl + Na2SO4Cl2 + 2KI = I2 + 2KCl 实验室制取原理MnO2 + 4HCl(浓) △MnCl2 + Cl2↑+2H2O 2KMnO4 + 16HCl = 2KCl + 2MnCl2 + 5Cl2↑+ 8H2O NaCl O + 2HCl = NaCl + Cl2↑+ H2O ( 离子方程式: Cl O-+ 2H+ + Cl- = Cl2↑+ H2O ) 2.新制氯水成分分子:H２ＯＨClO Cl2 离子:H+Ｃｌ-CｌO-OＨ- 久置氯水成分分子：H2O离子：H+Cl-OH- ３.实验室如何制取纯净的氯气制取原理：MnO2 + 4HCｌ(浓) △MnCl２+ Cｌ2↑+2Ｈ2O 气体成分：Cｌ２（ＨCｌ、H2O）操作顺序仪器中盛装的药品各试剂的作用应出现的现象 ①先通入饱和食盐水除去HC l有晶体析出（NaCl） ②再通入浓H2SO4除去H2O 4.漂白粉 ①制法:2Cl２+ 2Cａ(ＯH)2= CaCl２＋Ca(ＣlO)2+2H2O ②有效成分:Cａ(CｌO)2 成分:ＣaCｌ２和Ｃａ（ClＯ)2 ③漂白原理：Ca(ClO)2 +CO2 +H2O = CaＣO３↓+ 2HClＯ（在溶液中) 漂白慢Ca(CｌO)2 + 2HCｌ＝CａCl2 + 2ＨＣlO漂白快 ④久置失效发生的反应：Ca（CｌO)2＋CO2 + H２O ＝ＣaCO3＋2HClO２HClO 错误!2ＨCｌ+O2↑ 5．Br2、Ｉ2在不同溶剂中的颜色水苯或汽油四氯化碳 Br2黄～橙橙～橙红橙～橙红 I2深黄～褐淡紫～紫红紫～深紫 6.置换反应Ｃl2 ＋2NａBr = Br2+ 2NaCl Br2 ＋２KＩ＝I2+2ＫBr∴氧化性Cｌ2>Br2 ＞I2 7．I２遇淀粉溶液后，溶液呈蓝色 I－错误!I２三.氮 1.氮的氧化物 NO: 无色气体、有毒(同CＯ）、难溶与水2NO＋O2 = 2NＯ2 NＯ2:红棕色气体、有毒、与水反应3NＯ2 +2H2Ｏ= 2ＨＮO3 +NO 2．有关NO与Ｏ２或NＯ2与O２混合通入水中,液面上升一定高度时用的方程式４NＯ2 + O２＋2H2O= ４HＮＯ３4NO＋3Ｏ2 +２Ｈ2O = 4HNO3 3.硝酸物理性质无色液体、有刺激性气味、能以任意比溶于水化学性质酸的通性强氧化性与金属氧化物3FeO + 10HNO3 = 3Fe(NO3)3 + NO↑+ 5H2O 与金属 3Cu + 8HNO3(稀) = 3Cu(NO3)2 +2NO↑+ 4H2O Cu + 4HNO3(浓) = Cu(NO3)2 +2NO2↑+ 2H2O 与非金属 C + 4HNO3(浓) △CO2↑+ 4NO2↑+ 2H2O 不稳定性4HNO3 光照或加热 4NO2↑+ O2↑+ H2O ４.氨( ＮH3）物理性质无色气体、有刺激性气味、密度小于空气、1:700溶于水化学与H2O NH3 + H2O NH3·H2O NH4++ OH-与酸NH3 + HCl = NH4Cl

人教版高一英语必修一unit4知识点及

必修I---unit 4 I---IV Earthquakes 一、知识点 1.Now imagine there has been a big earthquake.现在，假设有一次大地震。 “There +be +主语+其它成分”结构中there为引导词，本身无意义，谓语动词按照就近一致原则。其它相似句型还有： There happen to be碰巧有 There seems/appears to be好像有 There is likely to be可能有 There may/might be也许有 There must be一定有不可能有 There can’t be There is said/reported to be据说/据报道有 There used to be曾经有 There is sure/certain to be一定有 2. happen to. It (so) happened that… Did you hear what happened to David last night?你听说大卫昨天晚上发生什么事了吗?What will happen to the children if Peter and Alice break up?如果彼得和爱丽丝离婚孩子们将怎么办?

I happened to see Peter on the way to the bookstore yesterday.昨天我去书店的路上碰巧遇见了彼得。 It so happened that I saw Peter on the way to the bookstore yesterday.昨天我去书店的路上碰巧遇见了彼得。 I happened to be out when he called.他来访时，恰巧我出去了。(= It happened that I was outwhen he called.) I happened on just the thing I had been looking for.我偶然发现了我所要找的东西。 3. right away毫不迟疑，立刻 He is ill; you should call in the doctor right away.他病了,你应该立即请大夫来。 4. A smelly gas came out of the cracks.裂缝里冒出臭气。 5. In the farmyards, the chickens and even the pigs were too nervous to eat.农家大院里，鸡甚至猪都紧张得不想吃食。 6. But the one million people of the city, who thought little of these events, were asleep as usualthat night.但是，这个城市的一百万居民都没有把这些情况当一回事，当天晚上照常睡着了。 7. It seemed as if the world was at an end.世界似乎到了末日。从句表示“（在某人)看来好像；似乎” 看起来好像… ①It seems/looks/appears as if/though… ②Sb./Sth. looks as if/though…（不用seem/appear) 不用look) ③There seems/appears(to be)…（ There appears to have been a mistake. =It appears that there has been a mistake.

(完整版)高一英语必修二unit4词汇及综合试题

必修二Unit4 Wildlife protection 一．词性转换 1. protect vt. _________________ n. 2. important adj. ____________________ n. 3. affect vt. ____________________ n. 4. distant adj. ____________________ n. 5. laughter n. _________________v. 6. powerful adj. _____________________ n 7. contain vt. ____________________ n. 8. succeed vi. _________________ n. _________________ a dj. __________________ adv. 9. employ vt. _________________ n. ________________ n. (雇员) ________________ n. (雇主) 10. loss n. _________________ v. _________________ adj. ________________ n. (失败者) 二．单词填空 1. By 1881, the population of Ireland had ______________________ (减少) to 5.2 million. 2. China is getting more and more ________________ (强大) in the world. 3. It is not allowed to _________________________(打猎) wild animals in this area. 4. The climate __________________ (影响) the amount of the rainfall last year. 5. A tiger is a very _________________(凶猛的) kind of animal. However, it won’t attack you if you don 6. People say that barking dogs don’t b__ ______________ . 7. I'd a_____________________ it if you let me get on with my job. 8. Fresh fruit and vegetables c________________ plentiful Vitamin C. 9.Very few people s___________________ in losing weight and keeping it off. 10.It wouldn't do you any h___________________ to get some experience first. 11.He showed no m_________________ to his enemies. 12.Your mistake resulted in heavy l_______________. 13.Dave didn't r________________(回应)to any of her emails, which made her angry. 14.It is a rule that our baggage should be i_________ by customs officers(海关人员). 15.I am busy, so I have to e______________ a housekeeper to look after my children. 三．选择词组填空 die out according to in peace in danger so that succeed in do harm to burst into laughter protect…from pay attention to come into being in relief 1. The new country ______________________ only two years ago. 2. _____________________ the teacher, He fell far behind other students as a result of laziness. 3. The government is doing its best to ______________ those rare animals ________ being hunted. _________________ it. 4. I had warned him of the possible danger, but he didn’t __ 5. Elephants would ___________ if men are allowed to shoot as many as they wished. _____________ every time they cross the road. 6. Children’s lives are ___ 7. The two communities live together _________________. 8. Hearing the funny story, all of us _______________________. 9. Why don't you start out early ________________ you don't have to hurry? 10. No one was hurt, and we all smiled _______________. 五．阅读理解 People realize that, although animals may not have the same intelligence（智力）as human beings, they are smart enough to learn certain things. Dogs are extremely useful as companions for blind people. When a dog has been properly trained, he will always lead his blind master in the right direction and keep him out of danger. For example, seeing-eye dogs learn never to cross a busy road when cars are coming, even if their master ordered them to do so. Horses are also able to learn many things. Horses that are used for guard or police duty must learn never to be frightened of noises, traffic, and other disturbances. Racing horses are able to run much faster than other horses, but they are also quite high strung（易紧张）. Therefore, it is necessary for those people who train them to be very patient(耐心) and understanding. The moving pictures and television can use trained animals too. Some animals, such as monkeys and foxes, are easy to film. All you have to do is make a trail in front of the camera by dragging something that smells good to the animals over the ground. Big animals, such as lions and tigers, can be photographed as they bound happily back to their families and dinner. If a movie actor is nearby, the well-trained animal will pay no attention to him. However, the audience may imagine that the actor escaped a terrible death by the skin of his teeth. 1. Dogs who help blind people must learn . A. to obey all orders B. to obey only safe orders C. never to cross roads D. to cross road when ordered to do so 2. Race horses are hard to train because they are . A. faster than other horses B. smaller than other horses C. clever than other horse D. more nervous than other horses 3. What does “make a trail” mean here in the last paragraph? A. place something to attract the animal B. give the animal a certain task C. order the animal to do things D. follow the animal to hunt 4. Lions can be photographed easily when . A. they are following a trial of something that smells good to them B. they are returning to their families