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新人教版高中英语必修2Unit 2 Wildlife Protection-Reading For Writing教案一
1. 标题首先根据海报的特点、格式写明标题。海报中往往把内容作为大标题。例如: Save the earth, Save the birds。2. 正文部分不同的海报其正文部分的侧重点不同。对于介绍性的海报, 首先要引出话题, 其次列出原因, 最后是总结。对于宣传类的海报, 要写明具体内容, 如: 活动内容, 地点以及参加活动的注意事项, 主持或举办单位等。1. 图片: 要选择引人注目的图片, 与主题要相关, 色彩明亮。话题句式 1. It is a treasure of our country. 它是我国的国宝。2. Believe it or not, at present only several thousand pandas exist in the world. 信不信由你, 目前世界上仅现存几千只熊猫。 3.It’s because of human activities that tigers are endangered. 正是因为人类的活动, 老虎处于濒危的状态。4. Many wild animals are in danger of dying out. 很多野生动物面临着灭绝的危险。 5. The government has taken effective measures to protect them. 政府已采取有效的措施来保护它们。6. People should raise the awareness of the protection of wild animals. 人们应该提高保护野生动物的意识。 7. It’s amazing that there are merely less than 1, 000 finless porpoises living in China. 非常令人吃惊, 目前中国仅有不足1 000只江豚。
新人教版高中英语必修2Unit 3 The Internet-Discovering Useful Structure教案一
This unit is about the Internet, which has a great influence to our humans and our lives. During the Listening & Speaking & Talking and Reading and Thinking section, the influence in examples has been shown. Thus, use the Present Perfect Tense is appropriate. However, in order to show the justice or weaken the doer of the behavior/action, it’s better to use the Present Perfect Passive Voice than the Present Perfect Tense. Besides, having learned to use the Present Perfect Passive Voice, students can beautify their language in their writing. 1. Learn the structure of the Present Perfect Passive Voice and its functions. 2. Learn to change the sentences with the Present Perfect Passive Voice into the sentences with the Present Perfect Passive Voice. 3. Learn to write sentences with the Present Perfect Passive Voice flexibly according to the context. 1. Learn the structure of the Present Perfect Passive Voice and its functions. 2. Learn to change the sentences with the Present Perfect Passive Voice into the sentences with the Present Perfect Passive Voice. 3. Learn to write sentences with the Present Perfect Passive Voice flexibly according to the context. Step 1 Observe the following sentences, then change the sentences into passive voice.He has been selected to take part in the sports meeting．(肯定句)他已被挑选出来参加运动会。The ink has not been removed from his overcoat．(否定句)墨迹还没有从他外套上去掉。
新人教版高中英语必修2Unit 3 The Internet-Listening &Speaking＆Talking教案一
Listening and Speaking introduces the topic of “ask about online habits”. Many middle school students have been surfing the Internet for many years, but what they do with the Internet and how much time they spend every day may not be very clear to themselves, nor to other students. This section allows students to investigate their peers' Internet use, which is conducive to their mutual understanding and understanding of the Internet. It can also help them reflect on their own online behavior, learn from other people's good online habits, and get rid of their bad online behavior.The listening text of this section is an investigation interview. The investigators interview specific groups with the same questions to obtain information, so as to understand their views, practices or attitudes on this issue. There are two specific questions: “how much time do you spend online every day? What do you usually do online?”. The answers of the three respondents provide rich and different information, and achieve the purpose of the investigators. The oral discourse structure of survey interviews generally includes greeting and explaining the purpose of the interview, presenting the interview questions and the respondents' answers. Listening and Talking introduces the theme of “choosing the right application ". Listening text is a conversation between Laura and Xiao Bo. In this part of listening, “oink”； “piggy bank” may cause the students' hearing comprehension limitation. Oink refers to sound word and pig's sound. So, add some oink to my piggy bank is often used to describe "making a little money".1. Guide students to understand the content of listening texts in terms of listening for definitions.2. Cultivate students' ability to define words and understand an investigation interview.
新人教版高中英语必修2Unit 4 History and Traditions-Discovering Useful Structure教案一
Step 5 Practice一、完成下列句子。1. Judy and I _______________（把车停下来(park)）in an underground car Park near Trafalgar Square, where we could ______________________(让我们的车充电（charge)).2. When we finally reached the service desk to ask for audio guides, we heard it ___________ that there were no audio guides____________(留下，剩下）.3. We__________________________（发现自己对...很惊讶）the large number of visitors and the amount of noise at the entrance of the National Gallery.4. Judy ____________________(眼神专注于） Van Gogh’s Sunflowers. It was hard to approach the painting as there were so many people around.5. She ____________________(把这幅画的复制品装箱（box)） to ensure that it was delivered safely.答案：1.had our car parked get our car battery charged 2. announced left 3. found ourselves very surprised 4. had her eyes fixed on 5. had a copy of the painting boxed二、用过去分词对下列句子进行改写。1. Loch Ness was surrounded by beautiful natural landscape, which made it look amazing.2. Carl and his friend stayed with a generous family who offered them bread with butter and honey that was homemade.3. The family’s ancestors once attended to soldiers who were wounded in the First World War.4. The young people were attracted by the legend of Loch Ness. They watched over the lake with their cameras and binoculars, which were positioned on the hill.答案：1. Loch Ness surrounded by beautiful natural landscape looks amazing.2. Carl and his friends stayed with a generous family who offered them homemade bread with butter and honey.3. The family’s ancestors once attended to wounded soldiers in the First World War.4. The young people attracted by the legend of Loch Ness watched over the lake with their cameras and binoculars positioned on the hill.
新人教版高中英语必修2Unit 3 The Internet-Reading and Thinking教案一
Paragraph 3. Jan decided to start an IT club to teach old people how to use computers and the Internet. Paragraph 4. Jan has started taking online classes to learn more about how to use the Internet to make society better. Paragraph 5. Jan’s life has been greatly improved by the Internet. Step 5: Critical thinking:(1)How do you arrange your time spent on study and the Internet? Is it reasonable? I usually surf the Internet using my mobile phone for only an hour after class, and it is reasonable for me.(2)What are your online activities? Are they safe? I chat with my friends, read news and play games. I never give away my private information so I think they are safe.Step 4: summary Much has been written about the wonders of the World Wide Web. There are countless articles (1)______(tell) us how the Internet has made our lives more convenient. But the Internet has done a lot (2)_____(much) for people than simply make life more convenient. People’s lives (3) _________________(change) by online communities and social networks so far. Take Jan for example, who developed a serious illness that made her (4)_____(stick) at home with only her computer to keep (5)___(she) company. She joined an online group (6)______ she could share problems, support and advice with others. She considered the ability to remove the distance between people as one of the greatest (7)_______(benefit). She was so inspired (8)____ she started an IT club in which many people have been helped. She has started to learn more about how to use the Internet to make society better. Her next goal is to start a charity website to raise money (9)___ children in poor countries. Jan’s life has been (10)______(great) improved by the Internet. Step 5 Homework:Review what we have learned and find out the key language points in the text.
新人教版高中英语必修2Unit 4 History and Traditions-Listening＆Speaking＆Talking教案一
This unit is about history and traditions. From the opening page, we can know that this unit will introduce the history and traditions around the world. As Marcus Garvey says “A people without the knowledge of their past history, origin and culture is like a tree without roots”, it is important for students to realize the importance and value of knowing the history and traditions and their further meanings. And this part ( listening and speaking ) is divided into two parts: Part A---share views on historic sites, Part B ---talk about a visit to a historic tourist destination. By talking with a foreigner, the speakers introduce the historic attractions and their cultures. Part A is that William, a British student, who was going to visit the Confucius Temple and a Chinese student, Xiao Kong, who was going to the Confucius Temple to meet with the members of the research group, went together and exchanged their views on the Confucius Temple, Confucius, Confucius' descendants and Confucius' educational thoughts. Part B is a conversation between Xiao Yan, a youth hostel receptionist and Paul, a backpacker about the feelings and experience after visiting the Chinese famous tourist attraction Pingyao.1. Guide students to understand the content of listening texts in terms of the whole and key details; 2. Cultivate students' ability to guess the meaning of words in listening; discuss with their peers how to talk about historic spots and great person.3. Instruct students to use functional sentences of showing one’s excitement, surprise and disappointment.1. Guide students to understand the content of listening texts in terms of the whole and key details; 2. Cultivate students' ability to discuss with their peers the related topics.3. Enable students to use the functional items of showing one’s excitement, surprise and disappointment.
新人教版高中英语必修2Unit 3 The Internet-Reading For Writing教案一
⑦identity theft 身份盗窃⑧chat room 聊天室⑨draft your blog post 起草博客帖子⑩post embarrassing photos 张贴尴尬照片 【话题句式】 1. How do you stay safe online and avoid bad experiences on the Internet? 你如何在网上保持安全, 避免在网上的不良经历? 2. I’m not an expert, but many years as a blogger have taught me a thing or two. 我不是专家, 但作为一个博主, 我已经学了好几年了。 3. If you see or read something that makes you feel uncomfortable, leave the site immediately. 如果你看到或读到一些让你觉得不舒服的东西, 立即离开这个网站。4. Don’t give out your address or phone number. 别告诉别人你的地址或电话号码。 5. Identity theft is a common and serious problem. 身份盗窃是一个常见而严重的问题。6. Being online is no excuse for being rude, and you don’t want to become a target for a troll or cyberbully. 上网并不是无礼的借口, 你也不想成为发挑衅帖子的人或网络恶霸的目标。 7. Trolls often use several false names so that they can stay on a site. 发挑衅帖子的人经常使用几个假名, 这样他们就可以留在一个网站上。8. However, the more polite you are, the less likely it is you will be attacked. 然而, 你越有礼貌, 你被攻击的可能性就越小。
新人教版高中英语必修2Unit 4 History and Traditions-Reading and Thinking教案一
Features of languages1．Finally, in the 20th century, the southern part of Ireland broke away from the UK, which resulted in the full name we have today: the United Kingdom of Great Britain and Northern Ireland．该句是一个复合句。该句主句为：the southern part of Ireland broke away from the UK；which resulted in the full name we have today为which引导的定语从句代指前面整句话的内容，we have today为定语从句修饰先行词name。译文：最后，在20世纪，爱尔兰南部脱离英国，这导致了我们今天有的英国的全名：大不列颠及北爱尔兰联合王国。2．Almost everywhere you go in the UK, you will be surrounded by evidence of four different groups of people who took over at different times throughout history．该句是一个复合句。该句主句为：you will be surrounded by evidence of four different groups of people；其中Almost everywhere you go in the UK为让步状语从句； who took over at different times throughout history为定语从句修饰先行词people。译文：几乎无论你走到英国的任何地方，你都会发现历史上有四种不同的人在不同的时期统治过英国。3．The capital city London is a great place to start, as it is an ancient port city that has a history dating all the way back to Roman times．该句是一个复合句。该句主句为：The capital city London is a great place to start; as it is an ancient port city that has a history dating all the way back to Roman times．为原因状语从句；dating all the way back to Roman times为现在分词短语作定语修饰history。
新人教版高中英语必修2Unit 5 Music-Discovering Useful Structures教案一
Step1:自主探究。1．(教材P52)Born(bear) in the USA on 2 January 1970, Whitacre began studying music at the University of Nevada in 1988．2．(教材P52) Moved(move) by this music, he said, “It was like seeing color for the first time．”3．(教材P56)I was very afraid and I felt so alone and discouraged(discourage)．4．(教材P58)Encouraged(encourage) by this first performance and the positive reaction of the audience, I have continued to play the piano and enjoy it more every day．Step2:语法要点精析。用法1：过去分词作表语1）．过去分词可放在连系动词be, get, feel, remain, seem, look, become等之后作表语，表示主语所处的状态Tom was astonished to see a snake moving across the floor．汤姆很惊讶地看到一条蛇正爬过地板。Finally the baby felt tired of playing with those toys．终于婴儿厌倦了玩那些玩具。注意：1）.过去分词作表语时与被动语态的区别过去分词作表语时，强调主语所处的状态；而动词的被动语态表示主语是动作的承受者，强调动作。The library is now closed．(状态)图书馆现在关闭了。The cup was broken by my little sister yesterday．(动作)昨天我妹妹把杯子打碎了。2）感觉类及物动词的现在分词与过去分词作表语的区别过去分词作表语多表示人自身的感受或事物自身的状态，常译作“感到……的”；现在分词多表示事物具有的特性，常译作“令人……的”。
新人教版高中英语必修2Unit 5 Music-Reading and Thinking教案一
This section focuses on "learning about experiencing music Online". This virtual choir is a new form of music performance. Members from all over the world don't need to love to come to a place. Instead, they use the new technology to model the various parts and wonderful virtual harmony group of music in the family. Students need to understand the main meaning of each paragraph. Finding topic sentences is an important way to understand the general idea of a paragraph. After the topic sentence, it is usually the detail sentence that supports and explains the topic sentence. Some paragraphs have obvious subject sentences, for example, the first sentence of the second paragraph is the subject sentence of the paragraph, and the following sentenceStudents need to pay attention to the topic sentences and key sentences, and then pay attention to how the sentences after the meaning explain, explain and support the topic sentences or key sentences before.1.Guide students to learn about experiencing music online2.Guide students to scan and circle the information in the text.3.Guide students to find the numbers and dates to fill in the timeline.4.Guide students to learn more about music by completing the sentences with the correct forms of the words and phrases. And then make a mind map about the outline of the passage.1. Guide students to pay attention to reading strategies, such as prediction, self-questioning and scanning.2. Help students sort out the main meaning of each paragraph and understand the narrative characteristics of "timeline” in illustrative style.3. Lead students to understand the changes that have been caused by the Internet.
新人教版高中英语必修2Unit 5 Music-Reading For Writing教案一
(4)Now we have heard a number of outstanding speeches ... 我们已经聆听了许多精彩的发言……(5)Because we wanted the nations of the world, working together, to deal with ... 因为我们希望全世界各国团结起来去应对……(6)And if we do not act ... 如果我们不采取行动……(7)Now, I share the concerns that have been expressed ... 我也同意对于……表达的担心(8)Let us show the world that by working together we can ... 让我们告诉全世界，通过一起努力我们可以……(9)It is now time for us to ... 是时候我们……(10)And I have always wished that ... 我一直希望……(11)Thank you for letting me share this day with me.感谢你们和我共度这一天。实践演练：假如你是高中生李华，你校将举办一次以“音乐”为主题的演讲比赛，请你按照主题，写下你的演讲稿。注意：词数100左右。First of all, thank you for listening to my speech. My topic is: love music like love yourself.Music is like the air we need to maintain our normal lives around us. You can't imagine how terrible a world without music would be. Movies and TV shows have no music, only dry conversations and scenes; mobile phones only vibrations; streets only noisy crowds; cafes, western restaurants only depressed meals. What a terrible world it is!As a student, I hope we all can enjoy the fun brought by music in our spare time. Instead of just listening to music, we can even make our own music. Let's enjoy the fun of music!Thanks again for your attention!
人教版新课标PEP小学英语三年级下册My family教案
1．能够听、说、读、写字母H h, Ii,并能听说认读以这些字母为首字母的单词：hamburger, hot dog ,ice-cream, ice.2.听懂Let’s do 中的字母和短语，并做出相应的动作。如：A B C, look and see.3.听懂Story time 的内容。教学重点 掌握字母H h, I i单词：hamburger, hot dog ,ice-cream, ice。教学难点 1.能够听懂一些指令性短语，并做出相应的动作。2. Story time 的内容教具准备 1.本课时相关的单词卡和图片2. 教材相配套的教学录音带导学过程 二次备课预习提纲1． 课前了解一些食物英语的名称。2． 课前先让学生复习三年级上册FoodPart A Let’s Learn 部分的单词：cake ,bread, chicken…一.热身/复习（warming up）1. 游戏：找朋友将学过的七个字母按大小写分开，一部分学生拿大写字母卡，一部分拿小写字母卡。让拿大写字母卡的学生分别起立读出手中的字母，那对应小写字母卡的学生跟到他前方举起手中的字母，说：I’m… 两人握手2.让学生听三年级上册Part A Let’s Learn部分的录音，了解相关的食物的名称。.
人教版新课标PEP小学英语四年级下册Recycle 2教案
第一课时教学设计教学内容：Read and act教学目标：1.通过游戏及筹备野炊的过程，在实际情景中复习有关天气、蔬菜、水果、食物的单词以及句型：What’s the weather like in…..?How much is/ are …?What do you have ? I have … .I want … .2.能听懂、会说句型：Tomorrow will be … .Let’s go shopping. What do you want to bring? Let’s have a picnic tomorrow.教学重点：能听、说、认读句型：I want … .I have….教学难点：在实际情景中灵活运用Read and act 中的主要句型。教学准备：1.教师准备录音机、磁带和一张大购物单。2.教师准备有关蔬菜、食物、水果和天气的图卡和词卡。3.学生以小组为单位准备一份购物单。教学过程：一、Preparation1.Sing the song :The Coat in the Window.(P66 Unit5 Let’s sing)2.复习有关蔬菜、食物和水果的单词。（蔬菜指的是第六单元中学过的；水果主要复习本课时涉及到的几种常见的即可。）在复习的过程中教师可先出示词卡，让学生认读，并让学生试着说出意思，然后教师出示图卡进行确认。同时教师在黑板上写出shop的字样，把复习过的蔬菜和水果的图卡依次贴到黑板上。
人教版新课标PEP小学英语四年级下册Our School教案
教学重点：Read and write 中的四个四会单词以及问句“Is this a teacher’s desk?”及其答句“Yes, it is.”在四线格中的正确书写。教学难点：拼读单词picture，在四线格中书写句型“Is this a …?”以及总结元音字母a的发音规则。教具准备：1．与教材内容相关的课件、声音、图片等媒体素材。2．教师准备相关的词卡。3．学生准备白纸和彩笔。教学过程（35sk. c om整理）：（一）热身／复习（Warm-up/Revision）1．师生合唱该单元的歌曲和歌谣，边歌边舞。2．请学生表演Story time中的对话。3．猜谜语：教师给学生出一些简单的谜语，如：Jack is in a room. There are many books in it. He can see many students. They are reading books. They are quiet. Where is Jack?（二）呈现新课 （Presentation）1．请学生观察Read and write部分的情景图，预先空出来需要书写的四会单词，让学生独立思考，填充对话。
人教版新课标PEP小学英语五年级下册My Birthday教案
① 教师询问学生“What day is today?”，学生说出“Today is …”。而后又问学生：“What’s the date?”，帮助学生说出今天的具体日期：“It’s …”。 ② 让学生拿出课前准备的年历（最好是学生自己制作的），教师随意指着某天询问学生：“What’s the date?”，而后请学生拿着年历相互用“What’s the date? It’s ….”进行问答练习。③ 教师拿着年历从一月开始问学生：“Who has a birthday in January? Please stand up.”，而后教师问起立的学生：“What’s the date?”，让一月份生日的学生答出具体日期。④ 请若干名学生代替老师进行提问，从二月到十二月。活动四：Let’s talk教学参考时间：8分钟① 教师播放对话录音两遍，而后提问：“When is Sarah’s birthday? When is Zhang’s birthday?”，学生根据对话内容回答出：“Sarah’s birthday is in October1st. Zhang’s birthday’s is in March12th.”。 ② 学生跟读对话，两人一组做对话练习。 ③ 学生根据同学的生日组织一个新的对话，教师请若干组展示他们的对话。
人教版新课标PEP小学英语五年级下册My Favourite Season教案
（三）趣味操练 （Practice）活动六：猜一猜教学参考时间：5教师说：Guess what’s my favourite season. Why?学生猜测：It’s winter. Because you can skate. 教师给予肯定或否定的答案然后邀请另一名孩子起来，大家继续猜测活动七：传话游戏教学参考时间：3分钟教师在每个小组第一个同学耳边轻声说一个句子：I like summer, because I can swim./I like fall, because I can find many beautiful defoliation.(落叶)/….每个小组传话，看谁传的又快又好每组的最后一个汇报你听到的句子（四）巩固和扩展（Consolidation and extension）活动八：Link and say教学参考时间：5分钟完成活动手册P13—3两人一小组，分别说说每组图代表的季节，服装，和事情教师提问，What would you like to do in spring/in summer/in winter/ in fall?,请孩子回答。两人一组问答，根据你听到的连出出对方喜欢的季节事情两个人交换书对答案活动九：Let’s do a survey 教学参考时间：5分钟完成活动手册P13—4自己认读范例对话，明确题意小组调查（6人）各小组展示答案活动十：试一试（Let’s try）教学参考时间：5分钟教师播放录音，学生理解再听录音，选择你听到的图
人教版新课标PEP小学英语三年级下册How many教案
一．温故知新1．教师播放“One, two, three, four, five”歌曲的录音带，让学生跟随录音一起唱。2．复习数字1－151）报数：教师让学生从1－15按顺序用英文报数，如果前一个学生报到15了，那么下一个学生就要从1再开始。2）游戏：叫号。教师把写有one —fifteen的单词卡发给学生，教师随意说数字，谁拿着相应的单词卡，谁就站起来并大声读出该单词。3．操练句型How many … can you see? I can see…和How many… do you have? I have…(使用15以内的数字)二.新课呈现 1．教师将1－15的数字卡贴在黑板上，用其中的两张组成一个算式，在两张数字卡的中间写上“＋”号，其和为15以内，让学生去计算，如Ten and five is fifteen.2．让学生两人一组，一个学生摆算式，另一个学生用英文说出结果。3．教师出示算式卡，如Nine and seven,让学生快速说出两数之和，并请最先说出答案的学生将算式用数字形式写在黑板上，在单词卡中找到相应的单词贴在和的位置上。
人教版新课标PEP小学英语四年级下册At a Farm教案
（二）新课呈现：学生以小组的形式指着挂图汇报，每组只谈论一种动物。(教师为尽可能多的学生提供对话机会，鼓励学生尽可能不重复别人说过的。)在对话的过程中，教师将单词卡片cat，dog，rabbit，duck，pig适时呈现给学生，让学生拼读单词。然后启发学生将每个单词中的元音字母的发音说出来，从而帮助学生记忆单词，同时为Pronunciation的教学进行铺垫。教师适当讲解单词拼写中需特别注意的地方。rabbit双写b；duck中ck发[k]的音。做找朋友的游戏：方法一：教师说单词：cat，dog，rabbit，duck，pig，分别请五个学生站到前面做出5种动物的动作；将5个单词的卡片面朝下分别发给5个学生，教师说Start！5名学生分别翻开卡片，根据单词意思到前面去找自己的朋友。教师对完成准确而且速度快的同学进行表扬。方法二：教师将cat，dog，rabbit，duck，pig的图片和单词卡片分别发给十个同学，看看谁能在最快的时间内找到自己的朋友。教师要表扬配合最密切的两个同学。
人教版新课标PEP小学英语四年级下册Recycle 1教案
1.Think and write接上一个环节，老师说“Zoom is careless. Where are his things? Let’s look.” 让学生看课本图片，认真观察。a. 教师给出例句，请同学仿照例句说出句子Zoom’s red shoes are in the library.Zoom’s green sweater is in the gym.b.学生完成课本图片后的短文。可以找程度好的同学在黑板上书写。c.让学生在小组内朗读句子。2. Let’s read..出示钟表模型，老师拨出几个有代表性的时间，学生分两组用“What time is it ? It’s ........It’s time to ……”进行问答。老师在学生回答时把时间和活动写在黑板上如下：Time Activities7：00 get up 7:30 go to school9:00have Chinese/math class10：00read books 或其他12:00 eat lunch3：15have P.E classOh, you have a busy day. Look, this is John’s day.a. 由上个环节引出John’s list. 教师引导学生仔细看Let’s read 部分的图，阅读John的活动时间表， 然后独立完成句子的正误判断，最后进行检查。b.让学生再次读John的活动时间表，回答下面的问题：What time does John go to school? Where does John read books?
人教版新课标PEP小学英语五年级下册A Field Trip教案
活动八：Story time：教学参考时间：5-7分钟打开书，学生自己阅读故事。两人一小组，尝试初步朗读。小组间互相提问回答：一人问，另一人回答。有两个人都不明白的问题，向全班提问。教师提问：（如果这些问题已经被同学问过了就不用再问了。）Is Zoom reading a book？Is he fishing？Are the frogs playing in the river？Are they catching mosquitoes？What are the frogs doing？教师播放故事录音，学生跟读。教师启发学生说一说从故事中学到了什么。教师要适时告诉学生青蛙是人类的朋友，要爱护青蛙。活动目的：Story time的教学，是培养学生阅读能力的有效载体，教师应充分利用。教师要给孩子充分的时间让孩子能够实实在在的进行阅读，从阅读中获得信息。经过了两年的学习，学生应该具备了初步的阅读小故事的方法，因此教师可以引导有能力的学生在原有的基础上，运用已经学过的语言，对故事进行简单的复述。这样做一方面可以检查学生理解的程度，另一方面可以进一步培养、锻炼学生的语言表达能力。