Unit 13 We’re trying to save the earth
一、教学目标：
知识与技能：
1. 能正确使用下列词汇 shark fin cruel harmful at the top of chain industry law
scientific afford reusable transportation
2. 能正确使用下列常用表达be harmful to, at top of, the food chain, take part in, can’t
afford to do, turn off, pay for, take action
3. 能谈论环境污染和环境保护问题
过程与方法：
通过阅读训练学生的综合语言运用能力，培养表达自己的观点的能力。
情感态度价值观：
学生通过了解人类捕捉鲨鱼获取鱼翅，破坏环境污染问题认识到保护动物的重要性。
二、教学重点与难点：
记忆重点单词及短语，复习现在完成时态
提高学生语言的综合运用能力
三、教学准备：
1、多媒体课件
2、录音机
Unit 11 Sad movies make me cry. Language Goal 【语言目标】 Talk about how things affect you Knowledge Goals 【知识目标】 Key Words drive，friendship，king，power，banker，pale，queen， examine，nor，palace，wealth，grey，lemon，uncomfortable， weight，shoulder，goal，coach，kick，courage，pull， nod，agreement，disappoint Key Phrases would rather，drive sb.crazy/mad，the more…the more…， be friends with sb.，leave out，call in，neither…nor…， to start with，let…down，kick sb.off，be hard on sb.，rather than，pull together Key Sentences 1.The loud music makes me nervous. 2．Sad movies don't make John cry. 3．Money and fame don't always make people happy. 4．She said that the sad movie made her feel like crying. Key Grammar Learn to use “make＋sb.＋infinitive without to；make ＋sb.＋adj.” Ability Goals 【能力目标】 1.Develop listening，speaking，reading and writing skills by using the target languages. 2．Learn to talk about how things affect you by using “make sb.do sth.”and “make sb. adj.”. Moral Goals 【情感目标】 With the help of this unit's study，students should know that things affect our feelings.We should treat it correctly and be happy and active in our life. Teaching Time 【课时】 Five periods Period 1 Section A(1a－2d) Period 2 Section A(3a－4b) Period 3 Section B(1a－1e) Period 4 Section B(2a－2e) Period 5 Section B(3a－3b) & Self Check 本单元围绕情感的话题，通过学习让学生能够表达自己的感受。Section A通过谈论不同事物对情绪的影响，要求学生学习与情感有关的词汇，并通过听说读写逐步掌握make作使役动词的语言结构，学习掌握表达情绪和感受的形容词和动词，学习make＋sb.＋do sth.和
7年级英语第一学期测试卷参考答案 Chapter 1 Ⅰ. 1-5 BCABC 6-10 ACCCC 11-15 ABCBB 16-20 BACBC Ⅱ. 1. having 2. well 3. healthy 4. was 5. friends 6. heard 7. playing 8. playing 9. owner 10. length 11-15 CDBCC Ⅲ. 1-5 BAACB 6-10 ADCDD 11-15 DBDBA 16-20 CBDBB Ⅳ. 1-5 BDACB 6-10 ADABD Ⅴ. 1-5 BACCA 6-10 BCDDB 11-15 CDABB Ⅵ. 1. Where, live 2. How many 3. doesn’t come 4. Would, like 5. Because our school is near my home, I can walk to school. /Our school is near my home, so I can walk to school. 6. works as 7. How old 8. am interested in / am fond of 9. favourite subject 10. walk to Ⅶ. Dear Helen, Nice to meet you! My name is Wang Lin. I’m 12 years old now. I study in a middle school. I’m a little shy but I’m friendly to my classmates. I can speak Chinese and a little English. But I like English best. It is my favorite subject at school. I like playing basketball best. And my favorite color is red, because it looks good on me. Can you tell me something about you? Please write to me soon. Best wishes! Yours, Wang Lin Chapter 2 Ⅰ. 1-5 ACBAC 6-10 CCBCB 11-15 BACAC 16-20 BCCCA Ⅱ. 1. colorful 2. once 3. does 4. leaves 5. healthy 6. to look 7. not to talk 8. to finish, doing 9. Yours 10. drawing 11-15 BADCD Ⅲ. 1-5 BBCAC 6-10 ACCBC 11-15 ACBBD 16-20 CABDC Ⅳ. 1-5 BCDAB 6-10 ACDCB Ⅴ. 1-5 DCDBA 6-10 ACDBC 11-15 BABCA Ⅵ. 1. When, start 2. She wants to be a teacher in the future. 3. Where does 4. Dose Mary like apples or bananas? 5. I found a purse on my way to school. 6. Is Jane good at Math? 7. What, do 8. Where do 9. She never fails an exam. 10. good at Ⅶ. Dear Gina, How are you? I am quite busy these days. I get up at 6:15 every day. I dress myself quickly and have breakfast at half past six. After breakfast I go to school. I have four lessons in the morning and three in the afternoon. I study hard and always help my classmates with their lessons. I have lunch at school. At half past four, I usually have sports or
机械运动 （测试时间：30分钟总分：60分） 一、选择题（本大题共13个小题，每小题3分，共39分） 1.估测在实际生活中的应用十分广泛，下列所估测的数据中最接近实际的是（） A．一个鸡蛋的质量约为500g B．普通家庭房间门的高度一般大于3m C．教室中使用的普通日光灯管的长度约为2m D．完整播放一遍中华人民共和国国歌所需要的时间为50s 【答案】D 【解析】本题考查学生对生活中常见物理量的估测，这就要求大家做有心人，注意观察和运用物理知识。也要识记一些常见物体的物理量。如：人步行的速度约为1.1m/s，中学生的质量约50Kg，一个鸡蛋的质量约为50g，课桌的高约为80cm，中学生食指指甲宽约1cm等。根据这些记忆进行对比即可得出正确答案。A．一个鸡蛋的质量约为50g ，选项错误； B．普通家庭房间门的高度一般约2m ，选项错误； C．教室中使用的普通日光灯管的长度约为1.2m，选项错误； D．完整播放一遍中华人民共和国国歌所需要的时间为50s ，选项正确。 2.小东在百米赛跑中第1秒通过的路程是3米，第2秒通过的路程是5米，第3秒通过的路程是7米，则他在这3秒内（） A．前2秒内的平均速度为5m/s； B．后2秒内的平均速度为6m/s； C．3秒内的平均速度为7m/s； D．最后1秒内的平均速度为5m/s 【答案】B 【解析】前2秒内的平均速度为（5+3）/2=4m/s，故A错；后2秒内的平均速度为（7+5）/2=6m/s，故B 正确；3秒内的平均速度为（3+5+7）/3=5m/s，故C错；最后1秒的平均速度为7m/s，故D错误；应选B。 3.2015年5月31日，中国选手苏炳添在国际田联钻石联赛男子100m比赛中，以9秒99的成绩获得第三名，成为当今跑得最快的黄种人。在这次100m比赛中，苏炳添的平均速度约为（） A．0.1m/s B．1m/s C．10m/s D．100m/s 【答案】C
Unit 1 How can we become good learners? Section A Period 1 Section A (1a-2d) 本单元围绕“做一个优秀的学习者”这一话题，首先引入了 “I study by working with a group.”这一重点句型，接下来学习how引导的特殊疑问句及其答语和复习现在完成时态。Section A包含两个教学重点：其一要求学生学习、掌握“I study by working with a group.”这一重点句型，；其二，学习how引导的特殊疑问句及其答语。Section B是在Section A基础上的拓展，主要是语言的学习、运用和巩固阶段。另外，本单元介绍了许多优秀的英语学习习惯与方法，可引导同学们借鉴采用。 【知识与能力目标】 （1）熟练掌握下列词汇： aloud,pronunciation,discover,repeat, note,pronounce, increase,speed, partner, create, active, connect, review, knowledge, wisely, born, attention （2）熟练掌握下列短语： work with friends, ask the teacher for help read aloud, look up, practice pronunciation, connect…with…, pay attention to （3）掌握下列句型： ---How do you study English? --- I learn by working with a group. ----Do you learn English by reading aloud? ----Yes, I do. It helps my pronunciation. ----- How can I read faster? ----You can read faster by reading word groups. ------How can I improve my pronunciation? ----One way is by listening to tapes. ----But whether or not you can do this well depends on your learning habits 【过程与方法目标】 本单元的主题是谈论学习方法与习惯，可引导学生采用Listening for specific information，
1. by + doing 通过……方式如：by studying with a group by 还可以表示："在…旁","靠近","在…期间"、"用,""经过","乘车"等如：I live by the river. I have to go back by ten o'clock. The thief entered the room by the window. The student went to park by bus. 2. talk about 谈论，议论，讨论 如：The students often talk about movie after class. 学生们常常在课后讨论电影。talk to sb. === talk with sb. 与某人说话 3. 提建议的句子： ①What/ how about +doing sth.? 如：What/ How about going shopping? ②Why don't you + do sth.? 如：Why don't you go shopping? ③Why not + do sth. ? 如：Why not go shopping? ④Let's + do sth. 如：Let's go shopping ⑤Shall we/ I + do sth.? 如：Shall we/ I go shopping? 4. a lot 许多常用于句末如：I eat a lot. 我吃了许多。 5. too…to 太…而不能常用的句型too+adj./adv. + to do sth. 如：I'm too tired to say anything. 我太累了，什么都不想说。 6. aloud, loud与loudly的用法三个词都与"大声"或"响亮"有关。 ①aloud是副词,重点在出声能让人听见,但声音不一定很大, 常用在读书或说话上。通常放在动词之后。aloud没有比较级 形式。如: He read the story aloud to his son.他朗读那篇故事给他儿子听。 ②loud可作形容词或副词。用作副词时,常与speak, talk, laugh等动词连用,多用于比较级,须放在动词之后。如: She told us to speak a little louder. 她让我们说大声一点。 ③loudly是副词,与loud同义,有时两者可替换使用,但往往 含有令人讨厌或打扰别人的意思,可位于动词之前或之后。 如: He does not talk loudly or laugh loudly in public. 他不当众大声谈笑。 7. not …at all 一点也不根本不如： I like milk very much. I don't like coffee at all. 我非常喜欢牛奶。我一点也不喜欢咖啡。 not经常可以和助动词结合在一起，at all 则放在句尾 8. be / get excited about sth.=== be / get excited about doing sth. === be excited to do sth. 对…感兴奋如： I am / get excited about going to Beijing.=== I am excited to go to Beijing. 我对去北京感到兴奋。 9. ①end up doing sth 终止做某事，结束做某事如： The party ended up singing. 晚会以唱歌而结束。 ②end up with sth. 以…结束如： The party ended up with her singing. 晚会以她的歌唱而告终。 10. first of all 首先. to begin with 一开始later on 后来、随 11. also 也、而且（用于肯定句）常在句子的中间 either 也（用于否定句）常在句末 too 也(用于肯定句) 常在句末 12. make mistakes 犯错如：I often make mistakes. 我经常犯错。
第八章力 一、力弹力 知识点1 力是什么 1.物体对物体的称为力.在国际单位制中，力的单位是，简称，其符号是.只要有力的作用发生，就一定会涉及两个物体:一个是施加力的物体，叫;另一个是受到力的物体，叫. 2.用绳子拴住水桶，手拿绳子从井中提水，此时手受到向下的拉力作用，这个力的施力物体是( ) A.水 B.水和水桶 C.绳子 D.地球 3.下列关于力的说法中，正确的是( ) A.在产生力的作用时，施力物体和受力物体不一定同时存在 B.一个物体也能产生力 C.力是物体对物体的作用，彼此不直接接触的物体之间没有力的作用 D.施力物体和受力物体是成对出现的 知识点2 形变和弹力 4.(1)物体形状的改变，叫作;如果形变的物体在撤去外力后能，那么该物 体发生的形变叫作弹性形变. (2)使物体发生弹性形变的外力越大，物体的形变就越. (3)物体发生形变后，力图恢复原来的形状，而对另一个物体产生力，这个力叫作弹力， 拉力、压力(填“属于”或“不属于”)弹力. 5.关于弹力，下列说法正确的是( ) A.相互不接触的物体间也会产生弹力 B.拉力不属于弹力 C.物体在发生形变时产生的力叫弹力 D.压缩的弹簧能产生弹力 6.一本书放在水平桌面上，下列关于书和桌面受力情况的叙述中，正确的是( ) A.桌面受到向下的弹力是因为桌面发生了形变 B.桌面受到向下的弹力是因为书发生了形变 C.书受到向上的弹力是因为桌面发生了形变 D.书受到向上的弹力是因为书发生了形变 7.下列形变属于弹性形变的是( ) A.捏面人时面人发生的形变 B.打碎玻璃时玻璃发生的形变 C.人坐在沙发上时，沙发发生的形变 D.骆驼在沙漠中行走时，沙漠表面发生的形变 8.几位同学用同一个弹簧拉力器锻炼身体，每位同学都可以将弹簧拉力器拉开至两臂伸直.两臂伸直时，对弹簧拉力器的拉力最大的是( ) A.几位同学都一样大 B.手臂长的同学 C.体重大的同学 D.力气大的同学 9.如图所示，取一根钢尺，一端用左手手指按压在桌面上，右手的手指将露出桌面的一端下压至a、b两位置，手指感觉用力较大的是把钢尺弯至(填“a”或“b”)位置.这一实验现象可以说明物体的越大，产生的弹力就越大.
Unit 14 I remember meeting all of you in Grade 7 （总分25分，时间30分钟） 一、单项选择题(10分) 1.When the police asked him some questions, he forgot ________ A．where he came from B．where will he come from C．where he comes from D．where did he come from 【答案】A 【解析】 试题分析：句意：当警察问他一些问题时，他忘记他来自哪里。此处作为动词forgot的宾语从句，应用一般过去时，并且词序为：疑问词+主语+谓语。故选A。 考点：考查宾语从句。 2.The 13-year-old boy is creative and ________， and he has a lot of ________ in his daily life. A．energy; energy B．energetic; energetic C．energy; energetic D．energetic; energies 【答案】D 【解析】 试题分析：句意：那个13岁大的男孩有创造力，有活力，他在日常生活中有很多精力。energy精力，是名词。energetic精力充沛的，是形容词。第一空作为is的表语，故用形容词energetic。第二空有a lot of修饰，故用复数名词energies。故选D。 考点：考查形容词和名词。 3.He ________ getting plenty of exercise must be good for his health. A．believe B．believes C．believes in D．believe in 【答案】C 【解析】 试题分析：句意：他相信得到大量锻炼对他的身体有好处。believe表示“相信”“信以为真”；believe in 表示“信仰”“信任”，其后的常用搭配语为：有关宗教、理论、原则、概念及可信任之人的词。此处他相信的是一种理论，主语he是第三人称单数，故谓语用第三人称单数believes in。故选C。 考点：考查动词短语。 4.After a week's rest, we ________ for Beijing again. A．set out B．set up C．set free D．set on 【答案】
杠杆 （测试时间：30分钟，满分50分） 一、选择题（每题2分，共30分） 1．在下列简单机械中，使用中属于费力杠杆的是 A．羊角锤 B．镊子 C．瓶起子 D．托盘天平 2．下列有关物理学史的说法正确的是 A．牛顿第一定律是伽利略总结牛顿等人的研究结果得出的 B．阿基米德原理就是杠杆的平衡条件 C．欧姆发现了同一段导体中的电流跟电压和电阻之间的定量关系 D．法拉第电磁感应实验表明，电流的周围存在磁场 3．下列杠杆中属于费力杠杆的是（） 4．下列物理知识与科学家对应关系中不正确的是 A．电流的磁效应——奥斯特 B．I=U/R——欧姆 C．杠杆平衡原理——阿基米德 D．Q=I2Rt——安培 5．图中所示的四种用具中，属于费力杠杆的是 16．小军学习了杠杆的知识后，想用公园的翘翘板来估测一块石头的重。如图所示，他将石头放在翘翘板A位置，自己坐在B位置上，翘翘板在水平位置平衡。若小军体重500 N，可估得石头的重约为( )
A．100 N B．250 N C．500 N D．1000 N 7．在图所示的四种剪刀中，正常使用时属于费力杠杆的是（） 8．如图所示的工具或仪器中，属于省力杠杆的是（） 9．下列几种工具，使用时属于费力杠杆的是（） A．测量质量的天平B．剪铁皮的剪刀 C．撬铁钉的锤子D．夹取食物的筷子 10．下列物品中，属于省力杠杆的是（） A．筷子B．扫帚C．钓鱼竿D．钢丝钳 11．我省中部山区的公路环绕山坡盘山而上，车辆沿着盘山公路向上行驶时可以（）A．省力 B．省功 C．省时间 D．省距离 12．下列四种情形中所使用的杠杆属千省力杠杆的是 13．下列杠杆，有哪一个与其它三个不属于同一类
阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。 A There are four people in my family. They are my parents, my elder brother and I. My mother is 1 house wife, and she works the 2 (hard) in my family. I 3 (usual) help her with the housework on weekends. My father is a 4 (teach). He has many lovely 5 (student). And he loves his job very much. My brother is 6 actor. He has 7 (work) for five years and he lives in another flat 8 (lonely) now. He often 9 (invite) us to go to his home to have dinner. I am a middle school student. I enjoy 10 (play) tennis in my spare time. My family members have a close relationship. I have a happy family. B My parents care about my study very much. When I do very well in 1 exam, my parents celebrate 2 for me. My mother usually cooks a delicious meal 3 my father always 4 (give) me a book as a present. He knows that I am 5 (interest) in reading books very much. But they also think it is important to develop 6 (person) independence. For example, some parents don’t expect their children to do the housework at home. Because they think 7 most important thing for them is to study well. But my parents have different 8 (opinion). They always ask me to help 9 the housework at home. So I can look after 10 (I) well. C Today is Saturday. Tom seems 1 (happily) because he doesn’t need to go to school. After 2 (eat) breakfast, he wants to go ouside to play, but it is 3 (rain) now. Tom feels sad. At the moment, Tom’s father asks Tom to play chess with him. Tom turns 4 (excite) after hearing that. In the afternoon, Tom and his parents watch TV together. The TV programmes are 5 (interest). D Susan had a problem and it worried her a lot. Last Sunday, 1 friend Ben came to her home to do the homework 2 her. After they finished their homework, it started to rain. Susan 3 (lend) her umbrella to Ben, 4 Ben hasn’t returned 5 to her yet. Susan’s grandmother gave the umbrella to Susan as her 6 (thirteen) birthday gift and it is very special to Susan. Susan felt 7 (embarrass) to talk about it to Ben. She had no idea what to do next. Her father told her maybe Ben has forgotten it and he suggested Susan should tell Ben the 8 (true). Now, Susan 9 (decide) to follow her father’s advice. She thinks Ben will be very happy to give 10 umbrella back. E My father died when I was 1 little kid. We were too poor 2 buy food. My mother got two part-time jobs to pay for 3 education. She did everything to make me live 4 (happy). At 5 age of twenty-two, I found a good job. However, a few 6 (month) later, the doctor told me I had a stomach cancer. It’s difficult for 7 (I) to accept the fact. My mother 8 (cook) simple but delicious food for me. After another CT, the doctor told me my tumor (肿瘤) got much 9 (small) than before, and I was away from the 10 (dangerous) of the cancer. F Mark Twain is one of the famous American 1 (write). Once he 2 (be) going to Dijon by train. There were many 3 (passenger) on the train. He was 4 (tire) and wanted to sleep. He asked the conductor (列车员) to wake him up when they came to Dijon. He explained he was 5 very heavy sleeper. “I’ll 6 (probable) get very angry at first, 7 do not take any notice. Just put me off the train.” Mark Twain went to sleep. After waking up, he 8 (find) that he was in Paris. He realized the conductor didn’t wake him up at Dijon. He 9 (run) up to the conductor and said, “I have never been so angry in all my life,”The conductor looked at him calmly. “You are not half so angry as 10 American whom I put off the train at Dijon,” she said.
功 学习目标： 1.理解做功的两个必要因素，知道什么情况下物体做了功，什么情况下物体没有做功。 2.掌握功的公式和单位，并会用功的公式进行简单的计算。 学案导学 【自主学习】 根据要求，阅读课本相关内容，先对以下问题独立探究，然后在组内交流，找出最佳解决方案。 任务一：认识物理学中的功。阅读课本“力学中的功”部分内容，回答下面问题。 1.根据课本内容说说你对功的理解：____________________________________________ 2.作用在物体上的力，使物体沿着力的移动了一段距离，我们就认为这个力做了功。 3.功包含两个必要因素：一是二是 4.根据你对功的理解，举出几个生活中做功的例子和不做功的例子： _____________________________________________________。 任务二：学习功的计算方法。 1、在物理学中，把与的乘积叫做功，用公式来表示是， 2、功的单位是，它有一个专门的名称叫做，简称符号 3、两个鸡蛋所受到的重力大约为 N，则将它们举高1m所做的功是 J。 【合作探究】 组内交流探究解决下面问题，并将组内合作探究结果展示给全班同学。 1. 小明用20N的水平推力，使重60N的木箱在水平方向上匀速移动了5m，此过程木箱受到的阻力为多少N？木箱重力做的功为多少J？ 2. 上海世博会浙江馆内有一只直径8米的“青瓷巨碗”，内装6吨“水”．在灯光下，青瓷碗内碧波荡漾，伴随着悠扬悦耳的丝竹，游客宛若置身如画江南． （1）游客看到碧波荡漾的“水”面，是因为“水”面对灯光的 _________； （2）围绕“青瓷巨碗”的是一个巨大的环形升降台，游客中升降台上站成一圈，升降台上升后可以同时看到“青瓷巨碗”内的景象．在某次升降中，升降台把80名游客匀速升高3米，若每位游客的质量以60千克计算，则升降台在这次上升过程中对游客所做的功多少J？（g=10N/kg） 【课堂训练】 A组：
文档 西塔庄初级中学英语学科教案（2014——2015）年度第一学期 年级：九年级 学科：英语 姓名：张雪艳
时间2014年9月 文档 Module 1 Wonders of the world Unit 1 What is a wonder of the world? 教学设计 课型 Listening and speaking 教材分析 This unit aims to review the learnt tenses so far and help students to be able to present some important and creative ideas about writing a school magazine. 教学目标 To learn and understand the topic words through talking and listening. To know something about the pyramids and the Grand Canyon. To understand the conversation about starting a school magazine involving different tenses. 知识与能力 1. Vocabulary and expressions: ancient, club, composition, pupil, meeting, call, event, listen up. That's news to me. Anyone else? 2. To enable the Ss to express in different tenses according to the set situations. 3. To learn to give ideas on writing a school magazine. 过程与方法 1. Top-down approach, enabling Ss to understand and talk about writing a school magazine. 2. To learn by listening, speaking and discussing. 情感、态度与价值观 To help students enlarge their vision on wonders of the world and help to know more about writing a school magazine of their own. 教学过程 教学步骤教师活动学生活动活动目的 Step 1 Lead-in Start the lesson by showing groups of pictures about the wonders of the world on the screen including the ancient pyramids. Ask students to talk about the picture on Page 2. T: Where can you see the pictures and the brief introduction probably? (Newspaper / the Internet / Magazine…) T: Yes, magazines like Crazy English / National Geography… Who started…? Learn the new vocabulary. (ancient, pyramid, review, wonder…)
九年级英语语法大全 2. ask…for help 向某人求助Unit 2 重点词组： 3.read aloud 朗读1. be more interested in 对…更感兴趣. 4.that way (=in that way) 通过那种方式2. on the swim team 游泳队的队员. 5.improve my speaking skills 3. be terrified of 害怕. 提升我的会话技巧4. gym class 体操课. 6.for example (=for instance)例如5. worry about. 担心. 7.have fun 玩得高兴6. all the time 一直, 总是 8.have conversations with friends 7. chat with 与…闲聊 与朋友对话8. hardly ever 几乎从不 9.get excited 高兴，激动9. walk to school = go to school on foot 10.end up speaking in Chinese take the bus to school = go to school by 以说汉语结束对话bus 步行去学校 11.do a survey about…做相关…的调查10. as well as 不但…而且 12.keep an English notebook 记英语笔记11. get into trouble 遇到麻烦 13.spoken English (= oral English) 英语口语12. make a decision 做出决定 14.make mistakes 犯错误13. to one’s surprise 使某人吃惊的是 15.get the pronunciation right 使发音准确14. take pride in 为…感到骄傲 16.practise speaking English 练习说英语15. pay attention to 留心, 注意 17.first of all 首先16. consist of 由…组成/构成. 18.begin with 以…开始be made up of 由…组成/构成. https://www.doczj.com/doc/3a4394936.html,ter on 随后17. instead of 代替, 而不是 20.in class在课堂上18. in the end 最后, 终于 https://www.doczj.com/doc/3a4394936.html,ught at 嘲笑19. play the piano 弹钢琴 22.take notes 记笔记 23.enjoy doing 喜欢干… Unit 3 重点词组： 24.write down 写下，记下1. be allowed to do sth 被允许干… 25.look up (v + adv) 查找，查询allow sb to do sth 允许某人干… 26.native speakers 说本族话的人allow doing sth 允许干… 27.make up 编造，虚构，化妆，打扮2.sixteen-year-olds = sixteen-year-old boys 28.around the world 全世界and girls 16岁的孩子 29.deal with 对待，处理，解决3. part-time jobs 兼职工作 30.worry about (be worried about) 担心，担忧4. a dri ver’s license 驾照 31.be angry with 生某人的气5. on weekends 在周末 32.stay angry 生气6. at that age 在那个年龄段 33.go by 消逝7. on school nights 在上学期间的每个晚上 34. regard…as…把…当做… 8. stay up 熬夜 https://www.doczj.com/doc/3a4394936.html,plain about/of 抱怨9. clean up (相当与及物动词) 清扫 36. change…into…把…变成…（= turn into）10. fail (in) a test 考试不及格 37.with the help of 在…的协助下11. take the test 参加考试 38. compare…to(with)…把…和…作比较12. the other day 前几天 39.think of (think about) 想起，想到13. all my classmates 我所有的同学
二、液体的压强 知识点1 液体压强的存在 1.如图甲所示，在两端开口的玻璃管下端蒙上橡皮膜，向玻璃管内倒水，看到橡皮膜向下凸出，说明液体对有压强;如图乙所示，用手指触压装水的保鲜袋，手指感觉到水和袋子对手有压力，说明液体对有压强. 2. 如图所示实验中，把下端蒙有橡皮膜的空玻璃管插入水中，会看到橡皮膜向管内凹陷，说明了，并且空玻璃管越向下放，橡皮膜形变越大，说明. 知识点2 探究影响液体内部压强的因素 3. 在“探究影响液体内部压强的因素”实验中. (1)压强计是通过U形管来显示橡皮膜所受压强的大小. (2)小华实验时的情形如图所示，四幅图中烧杯内的液面相平.(不考虑实验结论的偶然性) ①比较图甲和图，可以初步得出结论:在同种液体中，液体内部压强随深度的 增加而增大. ②保持金属盒在水中的深度不变，改变它的方向，如图乙、丙所示，根据实验现象可以 初步得出结论: . ③比较图乙和图丁，能初步得出液体内部压强与液体密度有关的结论吗? ，理由 是. (3)根据已有的压强知识，你认为水内部压强的大小与距离水底的距离d之间(填 “没有关系”或“有关系”). 4.如图所示，小明将压强计的探头放入水中的某一深度处，记下U形管中两液面的高度差h，下列操作中能使高度差h增大的是( )
A.将探头向下移动一段距离 B.探头水平向左移动一段距离 C.将探头放在酒精中的同样深度处 D.将探头在原深度处向其他方向任意转动一个角度 知识点3 液体压强的特点 5.装满水的容器侧壁上开有三个孔，水从小孔中流出，图中描述正确的是( ) 6.如图所示，玻璃管两端开口处蒙的橡皮膜绷紧程度相同，将此装置置于水中，图中能反 映橡皮膜受到水的压强后的凹凸情况的是( ) 7.如图所示的试管内装一定质量的水，当试管竖直放置时，水对管底的压强为1p ;当试管倾斜放置时，水对管底的压强为2p 比较1p 、2p 的大小，则( ) A. 1p <2p B. 1p =2p C. 1p >2p D.条件不足，无法判断 8.如图所示，装有水的容器静止在斜面上，其底部a 、b 、c 三处受到水的压强分别为a p 、b p 、c p ，则以下判断正确的是( ) A. a p =b p =c p B. a p b p >c p D. a p >b p =c p