安徽马鞍山市第十一中学八年级英语上册 8A Unit 5 Birdwatchers（第三课时）Vocabulary学案（无答案） 牛津版

课题：8A Unit5 Birdwatchers 第三课时 Vocabulary班级： 姓名： 使用时间： 年 月 日一、学习目标课前热身写出下列形容词的反义词happy _ kind _ helpful _ grateful _ like _背景知识前缀总是加在一个单词的开头，通过加前缀我们可以完全改变一个单词的意思，或者在原有基础上加上一些新的含义。除了可以在形容词前加前缀，我们可以在动词或名词前加前缀。在本课学习的否定前缀中，un-加在名词，形容词，副词之前,如：unusual(不寻常的), unfriendly(不友好的 ), unlucky(不幸运的，倒霉的)； dis加在名词、形容词，动词之前，如: disagree（不同意）, disadvantage（缺点）,disappear（消失）； in-加在形容词，名词之前，从来都不会用在以字母l，m，p，r开头的单词之前，如：incorrect（不正确的），inability（无能，无力）；im-一般加在以字母m, b, p开头的单词前，如：impossible（不可能的），impolite（不礼貌的）；ir-一般加在以字母r开头的单词前，如： irregular（不稳定的），irresolvable（不能分解的，不能解决的）。二、自学1. 在课本上找出下列单词词组,认真朗读它们并给出中文意思词汇 impolite dishonest unnecessary correct common impossible unfriendly unwelcome unable incorrect uncommon litter manners regular irregular词组 show good manners to others a nature reserve walk a long way wear new leather shoes be interested in leave litter protect the wetlands in the future2.认真预习课本P80A，帮助下列的形容词找到它们相对应的反义词 necessary _ comfortable _ regular _ welcome _ common _ possible _ dishonest_ unhappy_ unimportant _ unfriendly _unable _ incorrect _ 三、课堂活动1. 预习情况交流。2. 向学生讲解否定前缀in-的作用，并介绍其他否定前缀dis-,im-,ir-,un-。3. 自学能力检测1） 集体订正P80A.2） 学生朗读、理解并记忆各个形容词所用的不同前缀.3） 学生分组合作巩固单词.四、随堂检测A.词组互译1.对感兴趣 _ 2.穿新皮鞋 _ 3.自然保护区 _ 4.对别人礼貌 _ 5.在未来 _ 6.扔垃圾 _7.保护湿地 _ 8.走远路 _B.根据汉语提示写出句中所缺单词1.Its _(必要)to take an umbrella with you in London. But its _(没必要)to do this in Beijing.2.Its not good to be a _(不诚实) boy.3.Nothing is _(不可能) if we put our minds into it.4.Its _(不礼貌) to look at foreign tourists with eyes wide open.5.This new T-shirt makes him feel _(不舒服).C. 根据句意用括号内所给形容词的正确形式填空1.She is a _ girl, but she was _ when she heard the bad news yesterday. (happy)2.David is a _ boy. But his dog is _, no one likes it. (friendly)3.Tom was _ before. But now he is _ and always helps his classmates.(helpful)4.I love animals because they are very pretty and _. But mosquitoes are dangerous and _. (lovely)5.It is _ (necessary) to wear too many clothes when you go birdwatching in Zhalong in summer.6.It is _ （comfortable）to wear leather shoes when you go hiking.7.The birds will feel _ (happy)if you throw stones at them. 8.If you leave litter when you do birdcounting, you will be _ (welcome).9.It is _ (correct) to hunt or fish in Zhalong.10.The red-crowned cranes are rare. They are _ (common).11.It is _ (possible) to go to Zhalong by train within two hours from Nanjing.D. 根据前后句意，填写正确的形容词5.I dont like him because he is rude. He is often _ to others.6.I have never seen such heavy snow here. It is _ to see such heavy snow here.7.Water is very important to us. It is _ for us to live without water.8.My grandfather knows