UNIT 2 Unit Review教学详案—冀教版中学英语八年级下

UNIT 2　Plant a Plant!
Unit Review
设计说明 首先引领学生回顾本单元的重点词汇，为接下来的习题做好铺垫。通过有趣的猜字谜游戏，激发学生学习英语的兴趣。讲解构词法——派生法和转化法，在讲解派生法时，着重给出常见的前缀、后缀及对应的例词，辅助学生理解和记忆。在讲解派生法时，要教会学生在语境中分析词在句子中的作用，进而明确词性。在充分讲解语法知识的情况下，安排练习，让学生学会在具体语境中正确运用，并巩固所学知识。做练习时可以让学生进行小组活动或结对练习，加强学生的合作和探究，设置听力活动，让学生学习并体会英语发音的技巧。接下来，让学生听句子选出听到的内容，锻炼学生的听力。接下来，给学生提供多开口的机会，让学生对植物进行描述。由于这个任务相对来说对学生水平要求比较高，因此可以先给出示范，再让学生练习，这样既能减轻学生的负担，又能提高课堂学习的效果。设置阅读环节，让学生阅读文章并回答问题，锻炼学生的阅读能力和解题能力。最后设置部分练习，当堂检测学生的掌握情况。 教学目标 通过本课节的教学，学生达成以下目标： 1.知识目标 复习本单元所学的单词、短语和句型； 掌握本单元的语法：构词法——派生法和转化法。 2.能力目标 能够谈论植物和园艺活动。 3.情感目标 热爱大自然，保护环境从小事做起。 重点难点 1.重点：复习本单元所学的单词、短语和句型； 掌握本单元的语法：构词法——派生法和转化法。 2.难点：能够谈论植物和园艺活动。 教学准备 PPT 课件；本课节用到的录音。 授课时数 1课时 教学过程 Step 1　Revision Ask the students to write the answers as quickly as possible. Task 1 Vocabulary 1. 　　　　n. 洞 2. 　　　　adj. 大的；巨大的 3. 　　　　v. 覆盖 n. 盖子 4. 　　　　 v. 装满；充满 5. 　　　　 n．暴风雨 6. 　　　　adj. 不干净的；肮脏的 7. 　　　　 adj．北方的；北部的 8. 　　　　 n. 底部；最下部 9. 　　　　 adj. 基本的；基础的 10. 　　　　 v. 仔细考虑；认为；觉得 11. 　　　　 v. & n．测验；考查 12. 　　　　adj. 干的 v. 使干；变干 13. 　　　　 n. 目的；目标；意图 14. 　　　　 adj. 东方的；东部的 15. 　　　　 adj.害羞的 16. 　　　　 n. 院子；场地 Answers: 1. hole　2. huge　3. cover　4. fill　5. storm　6. dirty　7. northern 8. bottom　9. basic　10. consider　11. test　12. dry　13. purpose　14. eastern 15. shy　16. yard Task 2 Phrases 1. 用……填满　　　　 2. 顺便说一下　　　　 3. 变成　　　　 4. 在……底部　　　　 →（反义短语）在……顶端　　　　 5. 总之；一句话　　　　 6. 做……有趣　　　　 7. 确信　　　　 8. 使……远离　　　　 9. 打开　　　　 →（反义短语）合起来；收起来　　　　 10. 和……一起　　　　 11. 在……中间；在……中部　　　　 12.照顾；照看　　　　 Answers: 1. fill…with…　2. by the way　3. turn into　4. in the bottom of…; at the top of…　5. in a word　6. have fun doing　7. make sure　8. keep…away from　9. open up; close up　10. along with　11. in the middle of　12. look after Step 2　Building Your Vocabulary Complete the clues and do the crossword. ACROSS 1. This project is challenging, but it’s good for everyone. If you have time, you should c　　　　 it. 5. You should never judge a book by its c　　　　, but should you judge a story by its title 6. The stone is brown and round. It has a h　　　　 in the centre. DOWN 2. The e　　　　 sky turned pink as the sun rose. 3. A g　　　　 is a place outside. You grow plants in it. 4. She was supposed to be on a trip. So when I saw her here, I was s　　　　. 7. They have learned English in school. M　　　　 of them understand English well. Answers: ACROSS: 1. consider　5. cover　6. hole DOWN: 2. eastern　3. garden　4. surprised　7. Most Step 3　Grammar 构词法——派生法和转化法 构词法有三种，即合成、派生和转化。第一单元已经讲过合成法，本单元学习派生法和转化法。 1. 派生 在一个单词前面或后面加上一个词缀，构成一个新词，这种构词法称为派生法。词缀分为前缀和后缀。 加前缀一般不会引起词类的转变，在前缀中有相当多的一部分是用来构成反义的。如：im-, un-, dis-等。而后缀往往使词类改变，如加-ly构成副词。 常见前缀见下表： 前缀例词un-happy adj.(幸福的)—unhappy adj. (不幸福的) important adj.(重要的)—unimportant adj.(不重要的)dis-appear v.(出现)—disappear v.(消失) like v.(喜欢)—dislike v.(不喜欢) order n.(秩序)—disorder n.(紊乱)en-courage adj.(勇气)—encourage v.(鼓励) rich adj.(丰富的)—enrich v.(使丰富)mis-understand v.(理解)—misunderstand v.(误解)
常见后缀见下表： 后缀例词-er/-orwrite v. (写作) —writer n. (作者) act v. (表演) —actor n. (男演员)-mentdevelop v. (发展) —development n. (发展)-ion/-tion/-ationdiscuss v. (讨论) —discussion n. (讨论) explain v. (解释) —explanation n. (解释)-fulcare n. (小心) —careful adj. (小心的)-lyclear adj.(清楚的) —clearly adv.(清楚地)-lesshelp n.(帮助) —helpless adj.(无助的)
2. 转化 一个单词从一种词类转化成另一种词类而词形不变的方法称为转化法。转化法使英语中形成了大量外形相同但词类不同的词，即同形异性词。词性的确定取决于该词在句子中的作用。 We need some water.我们需要一些水。(water“水”为名词) Please water these plants for me.请帮我给这些植物浇浇水。(water“浇水”为动词) I’m reading a famous book.我正在阅读一本有名的书。(book“书”为名词) Book the tickets tomorrow. 明天订票。(book“预订”为动词) Step 4　Grammar in Use Task 1 1. Let the students fill in the blanks with the correct forms of the given words. (1) We had a 　　　　(please) journey to England this summer. (2) It is 　　　　 (amaze) that this tree laughs when the wind blows. (3) The children are drawing with their 　　　　 (colour) markers. (4)Be 　　　　 (care) with your handwriting. (5)After the earthquake, they became 　　　　 (home) people. (6)They are 　　　　 (happy) about the bad news. 2. Check the answers in groups. Discuss if they have different answers. 3. Check the answers together. Answers: (1) pleasant　(2) amazing　(3) colourful　(4) careful　(5) homeless (6) unhappy Task 2 1. Ask the students to write out the words according to the requirements. (1) hope　　　　 (adj.)　(2) water　　　　 (v.)　(3) useful　　　　 (adv.) (4) dirt　　　　 (adj.)　(5) warm　　　　 (v.)　(6) book　　　　(v.) (7) sun　　　　 (adj.)　(8) danger　　　　 (adj.)　(9) cover　　　　 (v.) (10) lazy　　　　 (adv.) 2. Let them check in pairs. Ask some pairs to share their answers. 3. Check the answers together. Answers: (1) hopeful　(2) water　(3)usefully　(4) dirty　(5) warm　(6) book (7) sunny　(8) dangerous　(9) cover　(10) lazily 4. Ask the students to make up sentences using the words. Give them an example first. e.g. There is no hope now. The future did not seem very hopeful. Step 5　Listening Task 1 1. Play the recording. Ask the students to listen and repeat. Pay attention to the red letters. (1) I drew a picture of my plants. (2) Are they also coming to plant trees (3) What makes a tree laugh (4)When something touches this plant’s leaves, they close up tightly. 2. Select some students to read in front of the class. Task 2 1. Let the students skim the following words or phrases first. (1) A. dust storm B. TV channel C. a flower bud (2) A. dry B. shy C. cry (3) A. eastern B. northern C. southern (4) A. at the top of B. in the bottom of C. in the middle of (5) A. by the way B. in a word C. best of all 2. Play the recording. Ask them to listen to the sentences and circle the words or phrases they hear. 3. Play the recording again for them to check the answers. Answers: (1) A (2) B (3) B (4) C (5)A Step 6　Speaking 1. Show a picture of bamboo and talk like this: The bamboo is a kind of very useful plan. Its stems are very strong. In some places bamboo can be used to build houses or make chairs. Also bamboo is the main food of pandas. They eat a lot of bamboo every day. So bamboo is very important for us. Do you know how to protect bamboo We shouldn’t allow people to cut down bamboo. 2. Ask the students to bring a photo of a plant to class and talk about it with a partner. They can also draw a picture if they can’t bring a photo. Answer the following questions: (1) What kind of plant is it (2) What is it used for (3) Is it important to us (4) How can we protect this plant 3. Let some student talk about his/her plant in front of the class. Step 7　Putting It All Together 1. Give them some time to read the passage on page 31 and answer the questions. (1) What are living things (2) Do plants and animals get their food in the same way (3) How does a plant make food for itself (4) What do animals eat 2. Let them discuss their answers in groups. 3. Ask some groups to share their answers. 4. Check the answers together. Answers: (1) Plants and animals are living things. (2) No. They get their food in different ways. (3) A plant uses the energy in sunlight to make food. (4) They eat plants or other animals./Plants or other animals. Step 8　Pair work 1. Let the students think about how they plant a plant. 2. Ask them to write down their ways. 3. Get them to work in pairs and discuss with their partner. Step 9　Self-Evaluation Instruct the students to complete Parts Ⅰ, Ⅱ and Ⅲ of the Self-Evaluation by adding more examples to each section. Ⅰ. Talking about Plants and Gardening Please remember to put a little water in the bottom of the hole. To make the soil rich enough, you can put compost in your garden. You need to keep water nearby. I can discuss plants and gardening in English. ☆ ☆ ☆ ☆ ☆ Ⅱ. Word Building Plant a plant! It gets windy and dirty everywhere. Water your seed every day. It can’t water itself. I’ll cover it when the weather is cold. I know a lot of English prefixes, suffixes and conversion words. ☆ ☆ ☆ ☆ ☆
Step 10　Enjoyment Get the students to read the poem Pretty Little Plant. Step 11　Homework 1. Remember the new words and expressions learnt in UNIT 2. 2. Review the grammar “prefixes, suffixes and conversion words”. 当堂达标 Ⅰ. 单项选择 1. Jim, please fill the bottle 　　　　 hot water. A. with B. for C. about D. in 2. May Day is coming. We are 　　　　 visiting the Terra Cotta Warriors. A. considering B. digging C. hitting D. discovering 3. They had fun 　　　　 football yesterday. A. play B. playing C. to play D. plays 4. Mrs. Green can’t come here. She has to 　　　　 her baby at home. A. look at B. look for C. look like D. look after 5. The girl is 　　　　. Her face always turns red when she speaks. A. outgoing B. excited C. shy D. beautiful Ⅱ. 用所给词的适当形式填空 1. Changchun and Shenyang are both 　　　　 (north) cities in China. 2. The table is 　　　　 (cover) with a piece of cloth. 3. Tree planting is a good way 　　　　 (learn) about nature. 4. The girl left the classroom without 　　　　 (say) a word. 5. The best time 　　　　 (plant) trees is in spring. 6. 　　　　 (keep) them away from the noise in the city, the Smith family moved to the countryside. 7. It’s fun and important 　　　　 (plant) trees. Ⅲ. 根据句意及汉语提示写出单词 1. Look! They are digging 　　　　 (坑) for the trees. 2. It’s important to save 　　　　 (能源). 3. Your hands are too 　　　　 (脏的). Please go and wash them. 4. The water is so clear that we can see the 　　　　 (底部) of the lake. 5. What’s the 　　　　 (目的) of your visit 6. We 　　　　 (考虑) that this is a good book. 7. There is going to be a dust 　　　　 (风暴) next Sunday. 8. Bill, you’d better master the 　　　　 (基本的) skills. 答案: Ⅰ. 1—5 AABDC　 Ⅱ. 1. northern　2. covered　3. to learn　4. saying　5. to plant　6. To keep 7. to plant Ⅲ. 1. holes　2. energy　3. dirty　4. bottom　5. purpose　6. consider　 7. storm　8. basic 板书设计 UNIT 2　Plant a Plant! Unit Review本单元单词及短语构词法——派生法和转化法 1. 派生 前缀 后缀 2. 转化
教学反思