八年级英语上册Unit5BirdwatchersVocabulary精品学案牛津译林版

　八年级英语上册

　y Unit 5 Birdwatchers Vocabulary 精品学案

　牛津译林版

　课题 8A Unit 5 Birdwatchers

　 Vocabulary

　 学习目标 知识目标 学习用否定前缀构成反义形容词并记住一些常用的这类词。

　能力目标 学习用否定前缀的形容词表达否定含义。

　学习重点 学习用否定前缀构成反义形容词的方法及含义。

　学习难点 用否定前缀的形容词表达否定含义并记住一些常用的词。

　课前自学 一、请写出下列词汇的反义词。

　helpful ___________

　kind__________

　 grateful___________ lucky____________

　 happy ____________ usual __________ 二、正确地读出这些单词。

　impolite,

　dishonest ,

　unnecessary,

　correct , common, impossible , unfriendly , unwelcome,

　unable ,

　incorrect,

　 uncommon ,

　litter,

　 manners , regular , irregular

　 三、在文中找出这些短语并在下面写出汉语意思 。

　walk a long way

　wear new leather shoes

　leave litter there

　in the future

　 show good manners to others

　 四、经过你的学习，请总结规律。

　un-

　 dis-

　im-

　in-

　ir-

　课堂交流展示 一、组内展示学案中的第一、二、三题，再由某一具体小组为主体进行学习。注意新单词的读音。

　二、Free talk (talk about Zhalong Nature Reserve )

　两人一组回忆课文并互相提问。

　三、Presentation (学生或教师)

　 With some adjectives, we can change the meaning by adding a prefix（前缀）.

　Adding the prefixes “dis-”, “im- “in-” “ir-” or “un-” to an adjective will express the opposite meaning of the word. These prefixes mean “not” or “the opposite of”

　e. g. Trainers are comfortable to wear. Small shoes are uncomfortable. If someone shows good manners to others, he is a polite person. If someone does not show good manners to others, he is impolite. 你可以再列举一些吗？ 四、Practice A．Match the adjectives on the left with their opposite on the right.( Part A) B．Play a game .

　 每人准备好 5 张分别带有 dis-, in- , im-, ir- un- , 前缀的卡片。每组选一名代表，然后从余下的学生中挑选一位发令员，其余学生做裁判。比赛开始，发令员大声读出形容词，要求学生快速反应举起写有正确否定前缀的卡片。举错卡片或反应明显慢于其他选手即遭淘汰，直至淘汰到最后一人，该学生即为优胜者，其所在小组为优胜小组。

　 还可以按此方法做几轮游戏，各组累计总分。

　C C ．

　Help the students to categorize the words using the following table.

　 And work out some of the rules un-

　 dis-

　im-

　in-

　ir-

　五、小组讨论并班内展示。

　 What should you do and what shouldn’t you do when you go birdwatching ?

　六、Play a game

　Game: Prepare a list of adjectives with positive and negative meanings. Read the adjectives one at a time. Every time students hear a negative adjective, they should stand up and repeat it. If the adjective has a positive meaning, students should remain seated and keep silent. 课堂达标检测 一、根据汉语提示写出句中所缺的单词。

　1.It’s _______________ (必要) to take an umbrella with you. But it’s ______________ (没有必要) to do this in Beijing.

　2.It’s not good to be a ____________ (不诚实) boy.

　3.Nothing is ______________ (不可能) if we put our minds into it.

　4.It’s ________(不礼貌) to look at foreign tourists with eyes wide open.

　5.The new T-shirt makes him feel _____________ (不舒服). 二、写出下列词汇的反义词。

　polite

　 common

　 welcome_______popular

　safe

　 easy

　regular

　helpful

　 kind

　 lucky

　_______

　 三、根据句意及字母提示填空 1. He didn’t pass the exam. He looks u_____________. 2. The past form of “go” is an i__________ change. 3. He broke his leg in an accident yesterday. He is u__________ to take part in the sports meeting. 4. ‘ Gardon’ is an i___________ spelling. It must be ‘garden’. 5. An h___________ child never tells lies. 6. Do your homework as carefully as p__________. 7. I think it’s i___________ for you to do so much work in an hour.

　Vocabulary

　一、1.necessary, unnecessary 2. dishonest, 3.impossible 4.impolite 5.uncomfortable

　二、1.unhappy 2.irregular 3.unable 4.incorrect 5.honest 6. possible 7.impossible 三、impolite, uncommon, unwelcome, unpopular, difficult, irregular, unhelpful, unkind, unlucky, dangerous, untidy, false