Lesson 40,I. A. (Across) 1. brother 2. below 3. old 4. play(Down) 1. birhtday 5. cry 6. telephone 7. comb B. father mother sister brother family II. A. 1. sits sitting 2. does doing 3. talks writing 4. walks riding5. watch listening B. beside on below above on,课本习题参考答案,IV. B 参考范文My brothers name is Li Feng. He is thirty-seven years old. He works in a middle school. He is a teacher. He teaches Chinese. He likes playing game. Now he is reading news paper at home.,语法解读,现在进行时,1.基本含义 表示说话时正在进行的动作或发生的情况。如： Im reading a book. 我正在读书。 也可以表示现阶段正在而此刻不一定进行的动作。如： What are you doing these days? 这些天你在干什么？ 还可以表示一个按计划即将发生的动作。但仅适用于go, come, leave, arrive等少数动词，且经常和一个表示将来的时间的状语连用。如： Im going hiking next week. 我打算下周去徒步旅行。,2.谓语结构：助动词be+现在分词 助动词be本身没有词汇意义，它应随主语的人称和数变化。其变化形式与连系动词be相同，即第一人称单数用am，第三人称单数用is，其他情况一律用are。,3.现在分词(-ing)的构成规则 规则变化动词原形-ing形式 1.一般情况下，直接在动词末尾加-ing do-doing, stand-standing 2.以不发音e结尾的单词，先去e再加-ing close-closing, take-taking 3.以重读闭音节结尾的单词，先双写末尾的辅音字母，再加-ing get-getting, cut-cutting,4.使用场合 当句中含有now, at this moment(此刻), these days, recently(最近)。如： She is talking to her mother at the moment. 此刻她正在和老师谈话。 当句中含有listen，look等动词时。如： Listen! The teacher is singing an English song. 听！这位老师正在唱英文歌。 上文提示某一动作正在进行。如： Where is Danny? 丹尼在哪儿？ He is listening to the radio in his room. 他正在房间里听收音机。,5.句式结构 陈述句式的肯定式及否定式。否定式在助动词be后加not。如： Youre cleaning the floor. You arent reading. 你正在擦地板。不是在读书。 He is listening to the teacher. He isnt dancing. 他正在听老师(讲话)。他不在跳舞。 一般疑问句形式：将助动词be提到主语前，句末加“？”。如： Are you watching TV? 你在看电视吗？ Is Lily wearing a red dress? 莉莉在穿着一件红裙子吗？ 特殊疑问句句式：特殊疑问词+be+主语+现在分词+？如： What are they doing? 他们正在做什么？ What is your brother drinking? 你哥哥正在做什么？,Exercise: 用系动词be的适当形式填空 1.Look at the picture. Li Yuan _（brush）her teeth 2.I_ (clean) in the classroom now. 3.She (talk) with her sister. 4.Look! They _ (play)on the computer at home.,答案： 1.is brushing 2.am cleaning 3.is talking 4.are playing,