八年级英语下册 Unit 2 lesson 11 Amazing Plants课件 (新版)冀教版 课件VIP免费

Lesson 11: Amazing Plants1) when it comes to2) hear sb. doing 和 hear sb. do 的区别3) as…as 的结构I. Learning aims: Remember the new words:egret, eastern, shy, tightly, fossil, southwest, livingII. Learning important and difficult points:egrettightlyeasternfossilsouthwestlivingshyNew WordsThink About It !How many plants can you name? Have you ever heard about any special plants?Language Language PointsPoints when it comes to 这个是固定结构，意为“当提到……；就……而论”，这里的 to 是介词，所以后面是动词的时候，要用 V-ing 形式；如果后面是名词，直接加就可以。如：1.When it comes to laughing, this tree is really funny. 当谈到笑的时候，这棵树真的很有趣。When it comes to politics, I know nothing. 当谈到政治方面的时候，我什么也不知道。hear sb. doing 表示听见某人或某物正在做某事；而 hear sb. do 意为“听到某人做了某事”，是指听到整个过程。如：2. When people first hear it laughing, they are usually quite surprised and begin to laugh along with the tree. 当人们第一次听到它笑时，他们通常都很惊讶，开始和数一起笑。I often hear her sing. 我经常听到她唱歌。 知识链接 与此相同用法的有： see sb. doing sth. 看见某人正在做某事，see sb. do sth. 看见某人做了（做过）某事； watch sb. doing sth. 观看某人正在做某事， watch sb. do sth. 观看某人做了某事。3. This plant can live as long as 1500 years, so people call it a living fossil. 这种植物能活到长达 1500 岁，所以人们称它为活化石。as long as 表示“长达 ------ 之久；和 ------ 一样长”。 as…as 结构，中间接形容词或副词原级，在否定句中，也可说成 (not) so… as 。as long as 也意为“只要”，注意引导条件状语从句时，主句用将来时，从句用一般现在时态代替将来时态，即“主将从现”。如：This river isn’t so long as that one. 这条河与那条河不一样长。ExercisesExercises1. The sun's _______ ( 能量 ) will last for millions of years.2. I have a good _______ ( 理由 ...