陕西省陇县东风中学八年级英语下册《Lesson 17》导学案（无答案） 北师大版.doc

lesson17【学习目标】1.掌握一些与介绍动物有关的词汇2.了解保护动物的方法3.掌握一些重要句型及短语:at the beginning of . drop to.food chain. in balance . in danger .cut down . as well【重难点预测】重点：century.fur.symbol.courage.brave.chain.balance.reason难点：disappear.kill.cut.decrease【学习流程】、预习检测基础单词1.勇气 2.勇敢的3.原因 4.杀死5.切割 6.减少7.世纪 8.标志9.平衡 10.链条短语1.在之初 2.下降到3.食物链 4.保持平衡5.把砍倒、自主探究amswer the following questions1.whats the meaning of “save the tigers”2.where do tigers live ?3.what do you think of tigers?、合作交流at the beginning of the 20th century, the number of tigers in the world was around 100,000翻译:用法 the number of意为_,后加名词,以这个短语作主语时,谓语动词用单数形式举例the number of the students in our class _ ( be ) fifty 我们班的学生数量是50the number of the volunteers _ to 100 志愿者的数量已经降到100拓展 a number of 意为”一些,许多”,后加可数名词复数,此短语作主语,谓语动词用复数举例a number of _ ( student ) in our class _(like )pop music 我们班有一些学生喜欢流行音乐anumber of students _( be ) late today 今天有许多学生迟到应用改错 the number of the members in this club are 500错在哪?应改为:_归纳出本课的重点单词及短语并翻译,认真书写、知识梳理1.单词2.短语 、课堂检测完成句子,每空一词1.什么对环境最重要?what is _ _ _ to the environment ?2.现在老虎的数量是多少呢?what is _ _ _ tigers now ?3.房顶上有一面红旗there is a red flag _ _ _ _ the house4.每年人们砍掉很多树people _ _ many trees every year5.我们必须采取措施保护老虎we must _ _ _ _ tigers6.他们需要很大的勇气来面对这种结论they need _ _ to have this kind of decision7.战士们多勇敢啊!_ _ the soldiers are !8.我们希望和你们一起工作we _ _ _ together with you9.昨天,这个时候他正在和丹尼做游戏he _ _ games with danny this time yesterday10.这个组的学生数是20个_ _ _ the students in this group is twenty11.什么也不能组织我们继续努力工作nothing can stop _ _ _ hard on12.她说她需要养更多的宠物she says she _ _ _ some more pets13.你知道哪种食物对动物们有益吗?do you know what kind of food _ _ _ _ animals ?、拓展延伸1.we must _ our food _ balancea.make;is b.keep;in c.keep;is d.make ;be2._ the _ beginning of the century , the computer is very pobulara.in;twenty n.at;twenty c.on;twentieth d.at;twentieth3.the price of apples has dropped _ 5 yuan a kilo _a.by;too b.to;either c.to;as well d.