北师大版英语九年级Unit 8 Discoveries Lesson 22 Famous Discoveries 第一课时 教学设计
北师大版初中英语九年级下册Unit 8 Discoveries 句式精讲
Unit 8 Discoveries句式精讲精练：【句式精讲】1. However, we need to be careful about how we use...because if we do not use them correctly, they can cause...（1）be careful about... 意为“对……要小心”。
be careful 可单独使用，意为“当心，小心”。
例如：Be careful about what you say. 对你所说的话要小心。
Be careful！The pan is hot! 当心！锅很热！（2）correctly作副词，意为“准确无误地；正确地”。
其形容词形式为correct，意为“正确的”。
例如：I have trouble using chopsticks correctly. 我很难正确地使用筷子。
I can tell you the correct answer. 我可以告诉你正确的答案。
2. If we learn more about DNA, we will be able to treat more diseases.这是含有if引导的条件状语从句的复合句，if译为“如果”。
if引导的条件状语从句表示在某种条件下会发生某种事情。
（1）if引导的条件状语从句的位置在含有if引导的条件状语从句的主从复合句中，if引导的条件状语从句的位置很灵活，既可以放在主句之前，也可以放在主句之后。
若放在主句之前，则在if引导的条件状语从句后加逗号。
例如：If she invites me, I will take part in her birthday party.= I will take part in her birthday party if she invites me.如果她邀请我，我将参加她的生日聚会。
（2）if引导的条件状语从句的时态在含有if引导的条件状语从句的主从复合句中，主从句的时态通常有三种情况：1）在谈论将来的情况时，if条件句常用一般现在时表示将来，主句用一般将来时。
北师大版九年级全一册英语单词默写表
n.耳罩
n.头带，束发带
n.连指手套
n.冰棍，冰棒
v.缝，做针线活
v.搅拌
adv.紧紧地
n.试管
n.电线
Unit 3: Communication Workshop
想出；提出（主意、计划、回答等）
adj.现代的；当代的
n.工业；行业
n.开发者，研制者
n.激光
n.出版
n.排版
Unit 4: Getting Ready
n.时态
n.话题
n.动词
Unit 2: Getting Ready
书店
滑稽的
n.经典作品；名著
adj.提供指南的
Unit 2: Lesson 4 Classics
放（风筝等）
n.人物；角色
n.洞；孔；坑
v.悬挂；垂下
n.准备；准备工作
v.落下；掉下
adv.光亮地；明亮地；adj.明亮的；光线充足的
adj.愚蠢的；不明事理的
n.形状；外形
adj.正确的；恰当的
v.&n.挑战；考验
v.克服；战胜（原形
坚果
有时
零度以下的
n.目的地
n.伤害，损伤
n.路线
adj.锋利的
Unit 7: Communication Workshop
购物中心
adj.（有关）历史的
n.样式；款式
n.地标；里程碑
v.存在
n.滨水区
Unit 8: Getting Ready
n.底部；最下部
v. 拍，打
n.怒火，怒气
n.旅行者
n.面颊，脸颊
拍手，鼓掌
adj.粗鲁的；无礼的
北师大版初中英语九年级下册Unit 8 Discoveries 词汇精讲
Unit 8 Discoveries词句精讲精练：【词汇精讲】1. receivereceive是及物动词，意为“收到，接到，得到”，其后可接介词from。
例如：I received a letter from my mother. 我收到母亲的一封来信。
【拓展】receive与accept的辨析：两个词都作动词用，都表示“接受，收到”之意，但在用法上有所不同。
（1）receive表示的行为与主观意愿没有关系，着重于行为本身，不涉及收到者是否同意。
动作本身有一定的被动性。
例如：He did not receive a good education at university. 他没在大学受过良好教育。
I received an invitation to the party yesterday, but I refused to accept it.昨天我接到一份参加晚会的邀请，但我拒绝接受。
（2）accept表示的行为由主语的主观意志所决定，强调经过主语的考虑而接受。
动作本身是主动的。
例如：She was very glad to accept the invitation. 她非常愉快地接受了邀请。
He couldn’t accept our suggestions. 他不能接受我们的建议。
2. deadThe tree has been dead for ten years. 这棵树死了10年了。
She looked at her dead cat sadly. 她伤心地看着她死去的猫。
My grandpa died two years ago. 我爷爷两年前去世了。
The fish will die without water. 鱼离开水会死去。
Car accidents have caused a lot of deaths. 车祸造成很多人死亡。
The doctors have saved the dying man. 医生们救活了那个垂死的人。
北师大版英语九年级Unit 8 Discoveries Lesson 22 Famous Discoveries 第二课时课件
Which of the sentence, which clause, Whichpart expresses the result if the expresses condition? conditionthe happens?
Read the passage and underline the sentences like this.
What can/will you do if there is __ ?
Save people around us Arrange to help others Videos are just the beginning Encourage more people to take actions
Think about it
• If we learn more about DNA, we will be able to treat more diseases. Is this a real situation? Can we learn more about DNA?
Read the passage and underline the sentences like this.
• If we learn more about DNA, we will be able to treat more diseases. If we do not use them correctly, they can cause serious health problems. • If we discover more about the human body, we can help people live longer and better lives.
【教学设计】Unit 8 Lesson 22(北师大)
Unit 8 DiscoveriesLesson 21 Famous DiscoveriesLesson 22是一节阅读课，涉及的话题是Famous discovery。
第一发现是抗生素，它在现实生活中作用比较大，但要注意适当使用。
第二发现是DNA，文本中介绍了它的架构，同时通过这个我们可以获知孩子从父母那遗传了哪些基因，同时也能在医学界可以帮助治疗很多疾病。
第三个发现是X光射线，介绍了它的发明人及它的作用，在生活中人们把它用到了各行各业中。
通过文本学习，使学生了解这些方面的知识，在生活中能够解决一些小问题。
【知识目标】通过对文本的理解与参与活动1，感知条件状语从句的意义。
【能力目标】通过阅读文本，表达出这些发现在现实生活中的所起的作用，了解一些简单的医学常识。
【情感目标】通过本节课的学习，使学生了解到需要长久不懈的努力和坚持，才能有所发现，有所成就。
、【教学重点】通过阅读文本，获取有关three discoveries的名称、发明人及用途等基本信息。
【教学难点】运用所学内容，就这些著名发现来谈论它们在现实生活中的所起的作用，了解一些简单的医学常识。
1. 课前准备：调试光盘与课件、给学生分组、为学生布置预习作业等；2. 教具学具：光盘、大卡片等。
Step1. Warm-up1. Let students talk about the astronomic knowledge.2. Let students make a discussion on the astronomic discoveries.What are the people doing in the following pictures?What do you think they are trying to discover?3. Listen to and practice the key words related to discovery.chemistry, do experiments, electricity, health, lab, machine, observe, physics, research, space, technology4. Take a look at pictures and learn famous discoverer.Step2. Reading1. Look the photos of figures who made the three discoveries and introduce their discoveries.2. Read and find the name of the picture A, B and C and make sure whether your match is right or not.3. Let students find out when these discoveries took place. Write the correct years.。
北师大版英语九年级全册【同步练习】Unit 8 Lesson 22
Unit 8 DiscoveriesLesson 22 Famous Discoveries同步练习( ) 1. --- Do you have any problems if you this job?--- Well, I'm thinking about the working day.A. offerB. will offerC. are offeredD. will be offered( ) 2. I will work out this question.A. able toB. be able toC. canD. could( ) 3. --- We can't be successful we keep working hard.--- I agree with you.A. ifB. unlessC. becauseD. when( ) 4. For most people in America, home should be , comfortable.A. at allB. in factC. above allD. at first( ) 5. Linda's father hates waiting in long lines. I think he's just not very .A. patient B . talented C. popular D. powerful1. The dof Columbus was quite an event in the world.2. When you smoke, you should think about its e on you and your health.3. Because of the cold weather, there are more p in hospitals.4. The story happened last c .5. Who p the prize at the meeting last night?1. 他只不过是个小孩子，你应该对他耐心点。
Unit 8 Discoveries Lesson 22 Famous Discoveries 1(练习)-2017届九年级英语全册
北师大版九年级英语Unit 8 DiscoveriesLesson 22 Famous Discoveries第一课时课堂练习一、英汉词组互译1 由12 努力工作2 略读课文13 借给某人某物3 带来严重健康问题14 保持冷静4 生命的组成部分15 对…感兴趣5 越来越多16 许多；大量6 传递17 对…有影响7 被用来做某事18 对…有用8 治病19 做实验9 通过20 一份实验报告10 在去…路上21 观察星星11 迷路22 能二、翻译下列句子1 如果我们能够了解DNA的更多知识，我们就能够治疗更多的疾病。
2 如果我们对人类的身体发现的更多，我们就可以帮助人们活得更长，生活的更好。
3 如果明天下雨，我们就呆在家里。
三、选词填空can may be able to are able to1、Will you ______ finish your home work this evening?2、One day people will _______________ travel to the moon.3、I __________________ finish the work before twelve.4、She was _______________ translate the Braille at college.答案一、1because of 2skim the text 3cause the serious health problems 4the buildingblock of the life 5more and more 6pass on7be used to do sth 8treat diseases 9go through10on one's way to 11get lost 12work hard13lend sb sth/lend sth to sb 14stay/keep calm 15be interested in sth/doing 16a great deal 17have effect on 18be useful for19do experiments 20an experiment report21observe the stars 22be able to二、If we learn more about DNA, we will be able to treat more diseases.If we discover more about the human body,we can help people live longer and better lives. We will at home if it rains tomorrow.三、Be able to, be able to, can ,able to。
北师大版英语九年级Unit 8 Discoveries Lesson 22 Famous Disco
北师大版英语九年级Unit 8 Discoveries Lesson 22 Famous Discoveries 第二课时教学设计一. 教材分析北师大版英语九年级Unit 8 Discoveries Lesson 22 Famous Discoveries 第二课时主要讲述了历史上的一些重大发现。
本课时的主要内容是学习关于这些发现的相关词汇和短语，并能够运用所学的知识进行简单的交流。
教材通过介绍这些重大发现，让学生了解人类历史的发展和科技的进步，培养学生的英语素养。
二. 学情分析九年级的学生已经具备了一定的英语基础，能够听、说、读、写一些简单的英语句子。
但是，对于一些专业的科技词汇和表达，学生可能还比较陌生。
因此，在教学过程中，教师需要帮助学生掌握这些词汇和短语，并能够熟练运用。
同时，学生对于历史上的重大发现可能了解不多，教师需要在课堂上进行适当的补充。
三. 教学目标1.知识目标：学生能够掌握本课时的关键词汇和短语，了解历史上的一些重大发现。
2.能力目标：学生能够运用所学的知识进行简单的交流，提高英语口语表达能力。
3.情感目标：学生通过学习，了解人类历史的发展和科技的进步，培养对科学的热爱和探索精神。
四. 教学重难点1.重点：学生能够掌握本课时的关键词汇和短语，了解历史上的一些重大发现。
2.难点：学生能够运用所学的知识进行简单的交流，提高英语口语表达能力。
五. 教学方法1.情境教学法：通过设定相关的情境，让学生在实际环境中运用所学的知识。
2.互动教学法：教师与学生进行互动，引导学生主动参与课堂讨论。
3.任务型教学法：学生通过完成相关任务，提高英语实际运用能力。
六. 教学准备1.教材：北师大版英语九年级Unit 8 Discoveries Lesson 22 Famous Discoveries2.课件：教师自己制作相关课件，包括图片、视频等资料。
3.练习题：教师根据本课时内容，设计一些练习题，用于巩固所学知识。
Unit8Lesson22FamousDiscoveries(第二课时)-教学设计-九年级英语北师大
Unit 8 Lesson 22 Famous Discoveries（第二课时）Lesson Focus·The conditional·Asking and answering questions about conditional situationsExercise 6Purpose: to help students plete first conditional sentences➢Direct students to the sentences. Say“plete the sentences with the correct form of the verbs in brackets”. Monitor, offering help as needed.Direct students to the chart in Exercise 5 if necessary.➢Go over the answers, asking individual students to say them aloud. Answers1. go, will feel,2. can join, are,3. will stay, rains,4. finish, will play Exercise 7Purpose: to help students plete first conditional sentences with their own ideas➢Choose one of the conditional clauses and plete it about yourself as an example. If you feel your students are ready, you may skip this step.➢Direct students to the conditional clauses. Say“plete the first conditional sentences with your own ideas”. Monitor, offering help as needed.➢Go over the answers, asking individual students to say them aloud.Challenge students to switch the clauses, putting the result clause first.Expansion: Don't Stop!Note: Use these activities to give students more practice.Activity 1: Have students get into pairs after pleting Exercise 7. Have them ask and answer questions about the sentences. For example, “What will you do if you go to London?”Monitor, offering help as needed.Activity 2: Lead a modified grammar chant. Begin with an ifclause, for example,“If my cousin es to visit ...”Have a volunteer student finish the sentence, for example, we'll go to the movies. Encourage another volunteer to make that into an ifclause: If we go to the movies... Encourage another volunteer to finish it: we'll see the new Spiderman.Continue until all students have had a chance to contribute to a sentence. Liven it up by setting a ticking clock so that students must think of something quickly. This should be lively and fun!SpeakingExercise 8Purpose: to help students ask and answer questions using the first conditional➢Direct students to the questions. Read them aloud, or have a student read them. Give students a few moments to think about their answers.Read the Example aloud. Have students get into pairs. Say“Now ask and answer the questions with your partner”. Monitor, offering help as needed. Challenge students to ask more questions, for example,What will you do if you don't pass the test? What will you do if you lose your mobile phone? Extend the activity by having students form new pairs.➢ e together as a class, having students share their thoughts.Exercise 9Purpose: to help students discuss discoveries➢Ask“What three discoveries were in the reading?”Elicit Antibiotics, DNA and Xrays. Direct students to Exercise 2. Say“Skim over the text and think about this: Which do you think is the most important and why?”After students have had some time to look over the text, have them form small groups of three or four to discuss. Monitor, offering help as needed.➢ e together as a class, having students share their thoughts. Expansion: Debate It!Note: Use this activity with more proficient students to have more practice. Have a debate over which discovery is the most important for mankind. Have students count off by three.The first group will take the position that antibiotics are the most important discovery, the second group will take the position that the discovery of DNA is and the third group will take the position that the discovery of Xrays is. Brainstorm some questions and topics that students might want to address in their presentations, for example, How did the discovery helpmankind? What difficulty did it address or solve? What future benefits might the discovery still hold? Give students time in class to prepare their presentations, time outside of class to do any necessary research and time in class to practise. Have students take a vote on which group was the most persuasive.➢If time allows, do Workbook pages 160 and 161 in class. Alternatively, assign for homework.。
北师大版英语九年级Unit 8 Discoveries Lesson 22 Famous Discoveries 第一课时公开课课件
Do you know any of them? What’s their major achievements?
屠呦呦 (1930--)药学家
抗疟疾:青蒿素和双氢青蒿素
Tu Youyou has become the first Chinese woman to win a Nobel Prize(2015), for her work in helping to create an antimalaria (['æntiːməl'eər iə] 抗疟疾的 ) medicine.
这颗系外行星编号Kepler 452b，其直径 约为地球的1.6倍，与恒星之间的距离与日地距离相近。恒星Kepler 452距离地球大约 430秒差距(约合1400光年)，位于天鹅座。
天文学家称，这是至今为止发现的最接 近地球的“孪生星球”，跟地球的相似指数 为0.98，并且有可能拥有大气层和流动水。
X-ray A
B DNA
C antibiotics
3. It’s the building block of life and we know a great deal about what we get from our parents from it.
st reading: 1 Look ! Guess and match Read and find the name of the picture A,B and C and make sure whether your match is right or not.
1. It’s a discovery in physics（身体）. It can go right through some things like skin(皮肤） and wood but stop by bones or metal. 2. Many children died very young because of different diseases. Now it can be cured(治愈) easily with it.
北师大版英语九年级Unit 8 Discoveries Lesson 22 Famous Disco
北师大版英语九年级Unit 8 Discoveries Lesson 22 Famous Discoveries 第一课时教学设计一. 教材分析北师大版英语九年级Unit 8 Discoveries Lesson 22 Famous Discoveries主要介绍了历史上的一些重大发现。
本节课的重点是让学生掌握相关的词汇和句型，能够运用所学知识介绍一些著名的发现。
通过本节课的学习，学生能够提高自己的英语听说读写能力，激发对科学发现的热情。
二. 学情分析九年级的学生已经具备了一定的英语基础，对于一些基本的词汇和句型已经有所了解。
但他们在口语表达和写作方面还存在一定的困难，因此，在教学过程中，需要注重培养学生的口语表达能力和写作能力。
此外，学生对于历史上的重大发现可能了解不多，因此，在教学过程中需要穿插相关的历史知识，激发学生的学习兴趣。
三. 教学目标1.知识目标：学生能够掌握本节课的重点词汇和句型，了解一些历史上的重大发现。
2.能力目标：学生能够运用所学知识进行口语表达和写作，提高自己的英语听说读写能力。
3.情感目标：通过学习，学生能够激发对科学发现的兴趣，培养探索精神。
四. 教学重难点1.重点：本节课的重点是让学生掌握相关的词汇和句型，能够运用所学知识介绍一些著名的发现。
2.难点：学生对于历史上的重大发现可能了解不多，因此，如何激发学生的学习兴趣，让他们主动去了解和探索，将是本节课的难点。
五. 教学方法1.情境教学法：通过创设情境，让学生在真实的语境中学习英语，提高口语表达能力。
2.任务型教学法：通过完成任务，让学生在实践中学习英语，提高写作能力。
3.启发式教学法：通过提问和讨论，激发学生的思考，培养探索精神。
六. 教学准备1.教师准备：提前备课，准备好相关的教学材料和课件。
2.学生准备：预习课文，了解本节课的学习内容。
七. 教学过程1.导入（5分钟）通过展示一些著名的发现，如火的发现、轮子的发明等，引导学生谈论历史上的重大发现，激发学生的学习兴趣。
北师大英语九年级Unit8Lesson22第二课时教学设计
3.阅读理解：阅读一篇关于杰出人物的文章，并完成相关的问题。要求学生从文章中提取关键信息，概括大意，提高阅读理解能力。
4.口语表达：以小组为单位，选择一位杰出人物，准备一个简短的介绍，包括人物事迹、优秀品质等。在下一节课进行课堂展示，培养学生的口语表达能力。
2.教学过程设想：
a.导入：通过展示与杰出人物相关的图片或视频，激发学生的学习兴趣，为新课的学习做好铺垫。
b.新课内容呈现：以课文为载体，引导学生学习新词汇和语法知识。在讲解过程中，注重词汇的搭配和语境运用。
c.课堂活动：设计小组讨论、角色扮演等互动环节，让学生在实践中运用所学知识，提高语言表达能力。
4.学生通过课后作业，巩固所学知识，培养自主学习能力。
（三）情感态度与价值观
1.学生通过学习本课内容，了解杰出人物的优秀品质，培养敬佩之情，激发学习动力。
2.学生在小组合作中，学会尊重他人，培养团队协作精神。
3.学生通过学习英语，了解中外文化差异，增强跨文化交际意识。
4.学生在学习和生活中，树立正确的人生观和价值观，努力成为有责任感、有担当的人。
2.教学目的：帮助学生掌握新词汇和语法知识，提高他们的语言运用能力。
3.教学步骤：
a.学生自读课文，理解大意。
b.教师讲解新词汇和短语，引导学生注意词汇的搭配和用法。
c.分析课文中的一般过去时和现在完成时的句子，解释两种时态的用法和区别。
d.通过示例和练习，让学生在实际语境中运用所学知识。
（三）学生小组讨论
2.重点：培养学生的阅读理解能力，使其能够从文章中提取关键信息，概括大意。
难点：学生在阅读过程中对文章深层含义的理解和把握。
北师大英语九年级Unit8Lesson22第二课时优秀教学案例
在讲授新知环节，我将按照以下步骤进行：
1.呈现本节课的重点词汇和短语，如：preserve, extinct, recycle, conserve energy等，通过例句和实物展示等方式，帮助学生理解和记忆。
2.分析课文中的语法结构，如一般现在时、一般过去时和一般将来时等，让学生掌握不同时态在句子中的应用。
二、教学目标
（一）知识与技能
1.学生能够掌握并熟练运用Unit8 Lesson 22中的重点词汇和短语，如：preserve, extinct, recycle, conserve energy等，同时能运用这些词汇进行主题相关的讨论和写作。
2.学生能够理解和运用一般现在时、一般过去时和一般将来时等不同时态描述环保问题及其解决方案。
本案例将环保主题与英语学习相结合，让学生在掌握英语知识的同时，关注环保问题。通过课堂讨论、课后实践等环节，引导学生积极参与环保行动，提高他们的社会责任感。这种教学内容的设计，有助于培养学生的人文素养，使他们成为具有国际视野和社会责任感的新时代青年。
2.问题导向，培养思辨能力
本案例采用问题导向法，引导学生主动探究环保问题。设计有针对性的问题，让学生在阅读、思考和讨论的过程中，培养独立思考、分析问题和解决问题的能力。这种教学策略有助于提高学生的思维品质，培养他们的思辨能力。
3.小组合作，提高团队协作能力
本案例重视小组合作，让学生在小组内进行讨论、分享和合作完成任务。这种教学方式有助于培养学生的团队协作能力和沟通技巧，同时也能激发学生的学习积极性，提高课堂效果。
3.深入讲解课文内容，引导学生分析文章的主旨大意，提高阅读理解能力。
4.结合课文，讲解环保问题的现状和解决方案，拓展学生的知识面。
Unit 8 Discoveries Lesson 22 Famous Discoveries 2(练习)-2017届九年级英语全册
北师大版九年级英语Unit 8 DiscoveriesLesson Famous Discoveries第二课时课堂练习一、Complete the sentences with the correct form of the verbs in brackets1 If you ______ (go) to bed late, you ________ (feel) tired the next day.2 You _________ (join) the Chess Club if you ______ (be) interested in it.3 We __________ (stay) at home if it ______ (rain) tomorrow.4 If I ______ (finish) the work early, I _________ (play) basketball with you.二、Fill in the blanks with if, or unless.1、It’s difficult for them to memorize the knowledge _______ they listen to someone talk about it.2、These people will learn better _____ they have the chance to use their hands or body.3. ______ they could relate knowledge to themselves, they will learn better.4. They won’t feel comfortable _______ they study in a quiet room.三、Choose the best answer1. — I hear the famous singer Xu Song may come to Ningbo next month.— Really? _______ he comes, my younger sister will be very excited.A. IfB. UntilC. UnlessD. Before2. __ you have tried it on, you can’t imagine how pretty the new style skirt is.A. BecauseB. AlthoughC. UnlessD. When3. I won’t take part in Julie’s birthday party ______ I am invited.A. unlessB. afterC. becauseD. if4. You will fall behind others ______ you work hard.A. ifB. unlessC. thoughD. since5. Studying in groups is necessary ______ you want to do well in school.A. ifB. untilC. unlessD. though6. The rivers will become dirtier and dirtier ______ we take action to protect them.A. sinceB. ifC. untilD. unless四、Complete the sentences with your own ideas.1、If I go to London, ___________________2、If I have a ten-day holiday, ___________3、If you don’t work hard in school, ______4、If you lend me your football, __________5、If you call me, ______________________答案一、1、go, will feel 2、will, are 3、will, rains 4、finish, will play二、1、unless 2、if 3、if 4、unless三、A C A B A D四、答案略。
北师大版初中英语九年级下册Unit 8 Discoveries 句式精讲
Unit 8 Discoveries句式精讲精练：【句式精讲】1. However, we need to be careful about how we use...because if we do not use them correctly, they can cause...（1）be careful about... 意为“对……要小心”。
be careful 可单独使用，意为“当心，小心”。
例如：Be careful about what you say. 对你所说的话要小心。
Be careful！The pan is hot! 当心！锅很热！（2）correctly作副词，意为“准确无误地；正确地”。
其形容词形式为correct，意为“正确的”。
例如：I have trouble using chopsticks correctly. 我很难正确地使用筷子。
I can tell you the correct answer. 我可以告诉你正确的答案。
2. If we learn more about DNA, we will be able to treat more diseases.这是含有if引导的条件状语从句的复合句，if译为“如果”。
if引导的条件状语从句表示在某种条件下会发生某种事情。
（1）if引导的条件状语从句的位置在含有if引导的条件状语从句的主从复合句中，if引导的条件状语从句的位置很灵活，既可以放在主句之前，也可以放在主句之后。
若放在主句之前，则在if引导的条件状语从句后加逗号。
例如：If she invites me, I will take part in her birthday party.= I will take part in her birthday party if she invites me.如果她邀请我，我将参加她的生日聚会。
（2）if引导的条件状语从句的时态在含有if引导的条件状语从句的主从复合句中，主从句的时态通常有三种情况：1）在谈论将来的情况时，if条件句常用一般现在时表示将来，主句用一般将来时。
Unit 8 Discoveries语法之状语从句21-22学年北师大版九年级全册
3. Read it aloud ___A____ the class can hear you.
A. so that
B. if
C. when
D. although
方法突破
状语从句种类多，最常见的有八个。 时间/地点/方式和原因，目的/结果/条件加让步。 从句如果表让步，though/although经常出。 还有even if/even though，no matter.../...ever表无论。 状语从句表目的，so that/in order that站这里。 状语从句表条件，引导词有if/unless/as long as。 状语从句表结果，so...that...such...that...来帮我。 so接形容词或副词，such修饰名词组。
in Shanghai.
A. so
B. because
C. before D. if
3. We won't have supper __D___ my brother comes.
A. after B. since C. while D. until
方法突破
状语从句种类多，最常见的有八个。 时间/地点/方式和原因，目的/结果/条件加让步。 从句如果表时间，when/while/before/after最常见。 还有as/as soon as和since，till/until也要你记清。 状语从句表地点，where/wherever站在前。 状语从句表方式，as/as if来当引导词。 状语从句表原因，because/since/as来当先。
常用引导词：as, as if等。 You should do as the teacher tells you. 你应该按照老师说的去做。 She behaved as if she were the boss. 她表现得好像她是老板。
北师大版英语九年级全一册：Lesson 22 Famous Discoveries. 教案
Lesson 22 Famous Discoveries【教学目标】1.重点词汇和句子。
2.通过阅读培养，提高阅读能力。
【教学重点】1.重点词汇和句子。
2.通过阅读培养，提高阅读能力。
【教学难点】To read and analyze the book extract.【教学准备】调试光盘与课件、给学生分组、为学生布置预习作业等；学具：光盘、大卡片等。
【教学过程】Step1. Getting readyLook at the photos. What are the people doing? What do you think they are trying to discover?Key Words:chemistry, do experiments, electricity, health, lab, machine, observe, physics, research, space, technologyThink about discoveries you know.Can you name some famous discoveries?Among these discoveries, which do you think are the most important ones?Step2. Warm-upWhat discovery do you think is the most interesting one?Step3. ReadingSkim the text. Which discoveries does it discuss?When did these things happen? Write the correct years.Step4. Reading-againRead the text again and answer.What effect do antibiotics have on how long people live?Scientists discovered DNA in 1869. How many years later did they discover its structure?What can scientists know from the map of our DNA?Who are X-rays useful for? How do you know?Step5. GrammarRead the sentences and find out more similar sentences in the text. Then work out rules to complete the table.Finish the exercises in 6/7.Step6. SpeakingPair Work:Ask and answer these questions with your partner.What can/will you do if…·there is a fire?·there is an earthquake?·your bike is broken on your way to school?……Group Work:Talk about the discoveries in Exercise 2. Which do you think is the most important?Step7. Homework完成课本对应练习。
北师大版九年级全一册《Famous_Discoveries》2022年(有答案)同步练习卷
北师大版九年级全一册《Lesson 22 Famous Discoveries》2022年（有答案）同步练习卷一、单项选择1. ﹣﹣﹣ Do you have any problems if you ________ this job？﹣﹣﹣ Well， I'm thinking about the working day．（）A.offerB.will offerC.are offeredD.will be offered2. I will ________ work out this question．（）A.able toB.be able toC.canD.could3. ﹣We can't be successful ________ we keep working hard．﹣I agree with you．（）A.ifB.unlessC.becauseD.when4. For most people in America， home should be ________ comfortable．（）A.at allB.in factC.above allD.at first5. Linda's father hates waiting in long lines．I think he's just not very _______．（）A.patientB.talentedC.popularD.powerful二、单词拼写The d________ of Columbus was quite an event in the world．When you smoke， you should think about its e________ on you and your health．Because of the cold weather， there are more p________ in hospitals．The story happened last c________．Who p________ the prize at the meeting last night？三、翻译填空他只不过是个小孩子，你应该对他耐心点．He is just a small child， so you must________ him．假如你没有钱了，你会怎么做？What________ do if you________ any money？除非有医院的证明，否则你必须参加体育测试．You're required to take________ in the P．E．test________ you have a doctor's note．也许你会为他们不能找到解决空气污染问题的方法而担心．Maybe you fear that they won't________ find the solutions to the problem of air pollution．四、完形填空On（1）_______1st, Mike decided to play a joke on his friend． At lunchtime he said to Tom, "I think we're going to have a science test（测验） this afternoon．""A test? " said Tom． "Really? ""Yes, it's quite（2）_______．" said Mike． "When I was passing by Mr． Hill's room, he was talking with（3）_______teacher about test． I think there will（4）_______a science test this afternoon． Tell Bob and Kate about it．"Later, Tom told Bob and Kate about the test．（5）_______almost all the students in Mr． Hill's science class knew about it． They quickly went into the classroom and began to （6）_______．But not Mike． He was laughing to himself（7）_______his classmates． "That fools!" he thought． "April fools．"When class began, Mr． Hill said to the students．"Class, we're going to have a test today．"Mike was surprised． He could not（8）_______what to do．When Mr． Hill handed out the（9）_______, the students began to write． But not Mike． He（10）_______ think and think and think．It really was April Fools' Day for Mike．（1）A.MarchB.AprilC.MayD.June（2）A.trueB.wrongC.reallyD.right（3）A.the otherB.anotherC.othersD.all the 0thers（4）A.beB.haveC.holdD.take（5）A.After a long timeB.After schoolC.After the science classD.Soon（6）A.playB.do maths exercisesC.studyD.read（7）A.aboutB.atC.forD.by（8）A.knowB.wantC.likeD.do（9）A.testB.booksC.paperD.papers（10）A.couldB.mightC.shouldD.had to五、阅读理解My first day of school was very interesting and couldn't be easily forgotten． I went to my science class in the morning and found a seat in the back． I waited there for 15minutes before the bell rang． The science teacher told us about some class rules． No one talked to me and I didn't talk to anyone else． I was one of those very shy girls． After the science class, I had an English class． I thought it would be boring but later I found it very funny． When the classes of the morning ended I went to lunch． I sat outside the dining room with no one to talk to and no food because I was too nervous to join the lunch line． I kept looking around hoping to see someone I knew but I never saw anyone．Lunch ended and I went to have my art class． I was the first one there and not even my teacher was there yet． So I sat at my desk and started drawing some pictures． I didn't notice the rest of the class walking in or the girl that was standing behind me till I was surprised by the voice, "So what are you drawing? " It was a girl who had really long hair． She ended up being my best friend and one of the kindest and liveliest girls I know． In the next class meeting, the teacher asked us to talk about the past holiday． I was glad to make some new friends in the class． The first day of high school was hard for me but I got through it．（1）What do we know about the writer's science class？________A. She was 15minutes late for it．B. She learned some class rules．C. She made some new friends．D. She sat in the front row．．（2）According to the writer， the English class was________．A. boringB. interestingC. hardD. useful．A. wasn't hungryB. forgot the lunch timeC. was afraid to stand in lineD. didn't like the dining room．（4）In the art class， the writer________．A. got to know a lively girlB. talked about her past holidayC. met someone she knew beforeD. drew some pictures about her class．（5）What was the writer's first class in the afternoon？________ A. The class meeting． B. The English class．C. The science class． D. The art class．参考答案与试题解析北师大版九年级全一册《Lesson 22 Famous Discoveries》2022年（有答案）同步练习卷一、单项选择1.【答案】C【考点】一般现在时的被动语态【解析】﹣如果你被提供这份工作，你有什么问题吗？﹣我在考虑工作日．【解答】根据句意：如果你被提供这份工作，你有什么问题吗？可知主语是动作的承受者，用被动语态；if引导的条件状语从句，用一般现在时表将来．故选：C．2.【答案】B【考点】情态动词【解析】我将能解出这个问题．【解答】考查情态动词．句意"我将能解出这个问题"．原句已经有情态动词will了，因此C，D 不正确．be able to do sth能做某事．A不正确．故选：B．3.【答案】B【考点】从属连词【解析】﹣除非我们一直努力工作，否则我们不可能成功．﹣我同意你（的观点）．【解答】答案：B；if如果，引导条件状语从句；unless＝if not；引导条件状语从句；because因为，引导原因状语从句；when当…的时候；引导时间状语从句；连词unless意为"除非…如果不…"，"除了…"，多引导一个否定意义的真实条件句．根据句中信息We can't be successful我们不可能成功 ________ we keep working hard我们一直努力．可知该空缺少一个引导否定意义的条件句的连词unless除非，4.【答案】C【考点】介词短语【解析】对大多数美国人来说，家首要的应该是舒适的．【解答】考查介词短语．A根本；简直； B事实上．C首要的是，尤其；最重要的是．D起初，当初．结合语境"对大多数美国人来说，家__应该是舒适的"可知，应该是"首要的是"．故选：C．5.【答案】A【考点】形容词辨析【解析】琳达的父亲讨厌排长队．认为他只是不是很有耐心．【解答】答案：A；patient有耐心的；talented有才能的；popular流行的，受欢迎的；powerful强大的．根据句中信息"Linda's father hates waiting in long lines琳达的父亲讨厌排长队"推知：他只是不是很有耐心．故选：A．二、单词拼写【答案】iscovery【考点】根据提示填单词（单句）【解析】哥伦布的发现是世界上的一件大事．【解答】考查名词．结合语境"哥伦布的发现是世界上的一件大事"及首字母提示，可知，应该是"发现"．the discovery of"…的发现"．填discovery．故答案是：discovery．【答案】ffect【考点】根据提示填单词（单句）【解析】当你吸烟的时候，你应该考虑它对你和你的健康的影响．【解答】考查名词．结合语境"当你吸烟的时候，你应该考虑它对你和你的健康的__"及首字母提示，可知，应该是"影响"．effect on对…有影响．固定搭配．故答案是： effect．根据提示填单词（单句）【解析】由于寒冷的天气，医院里的病人更多了．【解答】根据上文Because of the cold weather可知由于寒冷的天气，结合首字母p以及关键短语in hospitals"在医院里"可联想名词patient意为"病人"又知该句的be动词为are，故填入patient的复数．故答案为：patients【答案】entury【考点】根据提示填单词（单句）【解析】这个故事发生在上个世纪．【解答】根据给出的首字母提示，因此可知这句话的意思是"这个故事发生在上个世纪．"空格前面的词语是形容词，所以要用名词来填空．century是名词，意思是"世纪"故填century．【答案】resented【考点】根据提示填单词（单句）【解析】谁在昨晚的会议上颁的奖？【解答】根据空格后面的词语是the prize at the meeting，结合给出的首字母提示，因此可知这句话的意思是"谁在昨晚的会议上颁的奖？"又因为时间状语是last night，所以要用一般过去时来填空．故填 presented．三、翻译填空【答案】be patient with【考点】汉译英【解析】He is just a small child， so you must be patient with him．【解答】根据题干可知划线应填写"对…耐心点"时相对应的英文，这里用be patient with表示，这里放在情态动词must后面跟动词原形．故填写 be patient with．【答案】will you,don't haveWhat will you do if you don't have any money？【解答】答案：will you； don't have．考查汉译英．句意：假如你没有钱了，你会怎么做？根据汉语句子及其英语提示，可知if引导条件状语从句，遵循主将从现的原则，所以第一空用一般将来时，will do做；第二空句子是一般现在时，have有，实义动词，前用do，否定形式don't．故答案为will you； don't have．【答案】If tigers live in the open air【考点】汉译英【解析】If tigers live in the open air， they will hunt for their own food．【解答】根据they will hunt for their own food及所给汉语提示，这里考查if引导的条件状语从句，主句用一般将来时，从句用一般现在时，老虎用tiger表示，从they判断这里用复数形式，live 表示住，在野外用in the open air表示．故填If tigers live in the open air．【答案】part,unless【考点】汉译英【解析】You're required to take part in the P．E test unless you have a doctor's note【解答】答案：part，unless．首先通过中英文句子的比对，可知英文句子中缺少"参加"和"除非"的表达．短语"参加"的英文表达是：take part in，连词"除非"是unless，故答案为：part，unless【答案】be able to【考点】汉译英【解析】Maybe you fear that they won't be able to find the solutions to the problem of air pollution．【解答】能be able to，固定短语；在助动词will后面，用动词原形．故答案为be able to．四、完形填空【答案】BAAADD【考点】记叙文完形Do you want to watch a game show?: Section B【解析】这是一篇记叙文，本文叙述了一个发生在愚人节的故事．4月1日是愚人节，马克决定愚弄一下他的朋友．于是他告诉大家说下午要考试，结果几乎所有的人都信以为真，只有马克一人觉得大家很傻．令马克惊讶的是，下午老师竟然宣布要考试．课下所有的人都感谢马克，但是马克却感觉自己被愚弄了，自己很傻．【解答】（1）B．考查名词．A三月．B四月．C五月．D六月．句意"在__一日，迈克决定和他的朋友开个玩笑"．根据最后一句It really was April Fools' Day for Mike对迈克来说，这真是愚人节．可知，应该是"四月"．选B．（2）A．考查形容词．A真的．B错误的．C真地．D正确的．句意"是的，它是__"．根据上一句 "A test？" said Tom． "Really？""考试？"汤姆说，"真的吗？"．可知，应该是"真的"．选A．（3）A．考查代词．A（两个中）另一个．B（三个及以上之中）另一个．C相当于other+复数名词，泛指"另外几个"，"其余的"．D所有其他的．句意"当我经过Hill先生的房间时，他正在和___老师谈论考试"．可知，表示两个中的另一个，应该是the other．选A．（4）A．考查there be句型．A是．B有．C举行．D拿、取．句意"我想今天下午将会__科学考试"．there be有，一般将来时态there will be将会有．选A．（5）D．考查副词．A过了很久．B放学后．C科学课后．D不久．句意"__，在Hill先生的科学课上所有的学生几乎都知道了这件事"．根据上一句Later， Tom told Bob and Kate about the test后来，汤姆告诉鲍勃和凯特有关考试的事．可知，应该是"不久"．选D．（6）C．考查动词．A玩．B做数学练习．C学习．D读．句意"他们迅速走进教室开始__"．将会有考试，因此应该是"学习"．选C．（7）B．考查介词．A关于．B在几点或小地点．C为了．D通过．句意"他心里暗自笑话他的同学们"．laugh at sb嘲笑某人．选B．（8）A．考查动词．A知道．B想要．C喜欢．D做．句意"他不__该怎么办"．他愚弄同学们说会有考试，结果真有考试了．因此应该是不"知道"怎么办．选A．（9）D．考查名词．A考试．B书．C纸．D卷纸．句意"当Hill先生分发__时，学生们开始写"可知，考试时应该发"卷纸"．选D．（10）D．考查情态动词．A能．B可能．C应该．D不得不．句意"他___思考、思考和思考"．根据上一句When Mr． Hill handed out the papers， the students began to write． But not Mike．当Hill先生分发试卷时，学生们开始写了，但迈克没有写．可知，他没看书，因此"不得不"想了又想．选D．五、阅读理解【答案】D【考点】人物故事类阅读【解析】短文作者写了自己上学的第一天的学校生活经历，有趣而难忘．【解答】（1）B 细节理解题．根据第二行句子The science teacher told us about some class rules．No one talked to me nor did I talk to anyone else．科学老师给我们讲了一些课堂规则，没有人和我交谈，也没有和其他人交谈．可知她学会了一些班级规则．故选B．（2）B 细节理解题．根据第三行句子I thought it would be boring but it turned out to be very funny．我以为那会很无聊，但结果很有趣，可知英语课是有趣的．故选B．（3）C 细节理解题．根据第四行句子because I was too nervous to join the lunch line．因为我太紧张了，不能参加午餐队伍．可知作者没有吃午饭，因为她不敢排队．故选C．（4）A 细节理解题．根据第二段句子It was a girl who had really long hair． She endedup being my best friend 那是一个长头发的女孩．她最终成为我最好的朋友，可知作者在美术课上结识了一个好朋友，故选A．（5） D 细节理解题．根据第二段句子 Lunch ended and I went to have my art class．午餐结束了，我去上美术课．可知下午第一节课是美术课．故选D．。
初中北师大版英语九年级全册【教学课件】Unit 8 Lesson 22
北京师范大学出版社 九年级 | 全册
2.宇宙中最遥远星系被发现
An international team of scientists said they have discovered the farthest galaxy ever measured in the universe. 科学家使用位于夏威夷的凯克天文台的望远 By using a powerful instrument called MOSFIRE 镜发现了新星系，并将这个星系命名为EGSon the Keck I telescope at the Keck Observatory in zs8-1 。它是迄今发现的最遥远星系，打破了 Hawaii, the team thought that the galaxy, EGS-zs8-1, 此前的观测纪录。 formed more than 13 billion years ago at a time when the universe was only five percent of its present age.
北京师范大学出版社 九年级 | 全册
这颗系外行星编号Kepler 452b，其直径 约为地球的1.6倍，与恒星之间的距离与日-地 距离相近。恒星Kepler 452距离地球大约430 秒差距(约合1400光年)，位于天鹅座。 天文学家称，这是至今为止发现的最接 近地球的“孪生星球”，跟地球的相似指数 为0.98，并且有可能拥有大气层和流动水。 NASA说这个星球上可能有活火山，有 存在生命的可能性，行星应该有60亿年历史， 地球为45亿年。
Look at your worksheet after class. PPT(26—32)
北京师范大学出版社 九年级 | 全册
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处理Key words
迅速处理活动2，也可与活动场所9整合。（学案上给出拓展内容供学生参考）
5’
Pre-reading
Step3
T shows a picture of To Youyou and have a brief introduction and lead in Lesson 22
Students discuss them and talk about them with the model.
Example:Ithink the person in Photo A is observing the stars. Maybe he is trying to discover a new star.
2. Many children died very young because of different diseases. Now it can be cured(治愈) easily with it.
教学过程：
教学环节
教学活动
设计意图
时间
Warm-up
Step1
T gives students two pictures and two discoveries about space and show the topic“discoveries”of this unit.(Theinformationis on students’worksheet.)
设计思路：
由科技发现小介绍引出本单元话题Discoveries.以对话形式讨论Getting ready中的图片并处理key words。
Lesson 22 Famous discoveries以介绍屠呦呦为切入点导入本课文本内容：医学发现（学案上提供一些名人及他们的发现帮学生拓宽视野）
以猜谜的形式引出本课并以skim的阅读形式呈现三个医学发现名称，以熟悉、挖掘文本来完成不同任务获取发名人（有补充）、时间及三个发现各自在生活中的用途。
2.Students listen and d after the tape.
chemistry, do experiments, electricity, health, lab, machine, observe, physics, research, space, technology
3.Finish Ex2 (this step can be finished quickly, it can also be donewith Activity 9). Extra information is shown ontheworksheet.
T: Let’s look at three sentences and guess whatthey are?
1. It’s a discovery in physics（身体）. It can go right through some things like skin(皮肤）and wood but stop by bones or metal.
1.Do you know any other scientific discoveries?
2.Can you name some famous ones?
3. Among these discoveries, which do you think are the most important ones?
英语教学设计
教学基本信息
课题
Unit8Famous Discoveries
姓名
学校
课型
阅读课&语法课
年级
初三
教材分析
教学内容分析：
本单元是北师大版九年级第八单元，话题是Discoveries，涉及到著名的发现，年度发现、一份实验报告。在承接Get Ready部分有关“发现”话题的基础上，阅读方面包括三项重要发现Lesson 22: Famous discoveries(antibiotics, DNA, X-rays)；Lesson 24 An experiment report种植马铃署的步骤和经过。听力方面是听一段演讲，熟悉正式演讲构成的要素, Lesson 23 Discovery of the year；写作是写一篇关于自己的发现或经历的报告Communication Workshop:Learning from discoveries。语法是条件状语从句（conditionals）
4.通过本节课的学习，使学生了解到需要长久不懈的努力和坚持，才能有所发现，有所成就。
教学重、难点
第一课时：
教学重点：1.通过阅读文本，获取有关three discoveries的名称、发明人及用途等基本信息。
2.运用文本信息完成读后两个活动。
教学难点：运用所学内容，就这些著名发现来谈论它们在现实生活中的所起的作用，了解一些简单的医学常识。
Lesson 22是一节阅读课，涉及的话题是Famous discovery。第一发现是抗生素，它在现实生活中作用比较大，但要注意适当使用。第二发现是DNA，文本中介绍了它的架构，同时通过这个我们可以获知孩子从父母那遗传了哪些基因，同时也能在医学界可以帮助治疗很多疾病。第三个发现是X光射线，介绍了它的发明人及它的作用，在生活中人们把它用到了各行各业中。通过文本学习，使学生了解这些方面的知识，在生活中能够解决一些小问题。
出示两个有关太空方面的图片及信息，引出本单元话题“发现”
3’
Getting ready
Step2
1.T: Look at the pictures on P89 and try to answer:
1). What are people doing inthepictures?
2).What do you think they are trying to discover?
以深挖文本内容完成活动4作为读后活动1，活动9为读后活动2
教学目标
在本课学习结束时，学生能够：
1.通过阅读文本，获取有关three discoveries的名称、发明人及用途等基本信息。
2.通过阅读文本，表达出这些发现在现实生活中的所起的作用，了解一些简单的医学常识。
3.通过对文本的理解与参与活动1，感知条件状语从句的意义