(
课件网) Grammar Unit 4 Save the trees 准备课本 目标 黑笔 红笔 1. 产生氧气 produce oxygen 2. 保持空气凉爽，干净 keep the air cool and clean 3. 在很多方面 in many ways 4. 关于某事采访某人 interview sb. about sth. 5. 吸收 take in 6. 有害气体 harmful gases 7. 在我们的日常生活中 in our daily lives 8. 对抗 fight against 9.是……的栖息地，发源地 be home to 10.为某人提供某物 provide sb with sth =provide sth for sb Review present continuous tense 现在进行时 Structure（结构） What’s the structure of the present continuous tense be am is are + v.-ing When to use the present continuous tense 1.表示说话时正在进行的动作. The children are playing in the park now. 2. 表示目前阶段正在进行的动作。 (但说话时不一定在进行) We are preparing for basketball game these days. Structure 现在进行时的构成 肯定句 主语 + be（is/am/are）+ doing 否定句 主语 + be（is/am/are）+ not + doing 一般疑问句 be（is/am/are）+ 主语 + doing 特殊疑问句 特殊疑问词+be（is/am/are）+主语 + doing They are dancing. Look and Say The pigs are climbing the tree.. She is shopping online. Is it smiling _____ Is he smiling _____ Is she sleeping _____ We form the –ing form of the main verb like this: Work out the rule (P50) We form the present continuous tense with the verb to be+(the base form/the –ing form)of the main verb. 以不发音的e结尾 重读闭音节,结尾只有一个元音字母和一个辅音字母 Exercise (P50) Katie: Hi, Alex.We ⑴ are having (have) fun at the beach. Alex: What ⑵ _____ everyone _____(do) Katie: Ted ⑶ _____ (play) volleyball with Carol. Jenny and Henry ⑷_____(play) badminton. Grace ⑸ _____(fish). Ivan ⑹ _____(swim) in the sea. Laura ⑺_____ (sit )on the beach. She ⑻ _____ (read) a book. Jim ⑼ _____(make) a sandcastle with his mother. And I ⑽ _____ (talk) to you on the phone, Alex. is doing is playing are playing is fishing is swimming is sitting is making is reading am talking Tell the sentences correct or not. I know the answer now. I am knowing the answer now. She likes this poem. She is liking this poem Special Rules believe hear like prefer smell understand hate know love see taste want mean need belong 表示感官的、心理活动的或爱好的动词没有现在进行时态。 is ringing know am thinking prefer Exercise (P51) smells are eating am eating Do want 现在进行时的时间状语 (现在进行时的时间状语) at present now right now at the moment at this time look listen these days
