江苏省句容市行香中学八年级英语上册UnitNaturaldisastersGrammar新牛津新 4页

Natural disasters 一、教学目标 ‎1.学会正确使用过去进行时 ‎2.学会使用when.while和as 教学重点、难点 正确使用过去进行时以及when.while和as 二、词汇、短语 ‎ ‎1‎ break. v /broken adj/break--broke--broken ‎2 ‎ Terrible可怕的、糟糕的 adj/terribly adv ‎3‎ hit 击中 过去式hit ‎4‎ fall over跌倒 ‎5‎ make a snowball/snowman堆雪球/雪人 三、句型（语法）‎ I was sleeping at 10p.m last night. ‎ I was sleeping when the earthquake started.‎ ‎ People were running in all directions while pieces of glass and bricks were falling down. ‎ When/While/As Millie was watching Tv, Andy came into the room Millie was watching TV when Andy came into the room. ‎ ‎【课前导学】‎ ‎1.写出下列单词的现在分词：‎ Play___________step____________hide____________discuss____________‎ plan___________wait_____________buy_____________try_____________‎ run___________shop_____________begin____________sit_____________‎ search_________mop_____________‎ ‎2.复习现在进行时，预习过去进行时的基本构成方法。‎ ‎【课堂学习】‎ Step1 Duty report ‎ Step2 Look at some pictures to present past continuous tense.‎ ‎ Ask students to work out the rules ‎1、表示过去某一段时间内一直进行的动作。‎ 时间状语: from 8:00to 9:00 last night等，也可由上下文暗示。‎ 2、 表示在过去某个时间点发生的事情。‎ 时间点如：then, at 8 o’clock last night, when I was sleeping等。 ‎ What was she doing at nine o’clock yesterday? (介词短语表示时间点) ‎ When I saw him ,he was decorating his room. (when从句表示时间点) ‎ 3、 通常不能用于过去进行时的动词（见课本P123）‎ 改错：‎ ‎1.I was knowing the answer._______________________ ‎ 4‎ ‎2.I wasn’t understanding him. _____________________‎ ‎4句型：group work 小组讨论，通过例子，总结规则 肯定句：主语+was/were+doing+其它 否定句：主语+was/were+not+doing+其它 一般疑问句：Was/Were+主语+doing+其它? ‎ 肯定回答：Yes,主语+was/were.否定回答：No,主语+wasn’t/weren’t.‎ 特殊疑问句：特殊疑问词+was/were+主语+doing+其它? ‎ ‎(1) I was reading at this time yesterday.‎ 否定句：‎ 一般疑问句：‎ 肯定回答： 否定回答：‎ 特殊疑问句：‎ ‎(2) They were watching TV when their mother got home.‎ 否定句：‎ 一般疑问句：‎ 肯定回答： 否定回答：‎ 特殊疑问句：‎ Step3 Grammar2 when, while, as 都有“当......的时候”。‎ ‎1. while指一段时间，它所引导的从句中的谓语动词必须是延续的，不可以是瞬间性的动词，如：‎ While he reached there，They were playing basketball. ( )‎ While I was waiting for a bus, I met my cousin. ( )‎ 当强调两个延续性的动作同时发生时，常用“过去进行时+while+过去进行时”‎ e.g. 当他在打电话的时候，我在写信。‎ ‎ I ______ _______ a letter _______ he _______ _______ a phone call.‎ ‎(While he ______ _________ a phone call, I _______ _________ a letter.)‎ 当强调某个动作发生时，另一个动作正在进行，用“一般过去时+while+过去进行时”‎ ‎ e.g. 我们正在读书的时候，老师走了进来。‎ The teacher _______ in __________ we _________ __________.‎ ‎ 我妈妈在睡觉的时候，电话铃响了。‎ While my mother _______ _________, the telephone _________.‎ while的使用特点也可以记忆为：while 后面不接一般过去时(即短暂性动词)。‎ ‎2. when和as使用范围比while 广泛，它们引导的从句中的谓语动词既可以是延续性的，也可以是短暂性的。换言之，能使用while的句子也可以使用when或as替代，如“一般过去时+while/when/as+过去进行时”、“过去进行时+while/when/as+过去进行时” 都可以。‎ when和as的特殊之处：‎ when引导的从句中的谓语动词可以在主句的动词之前、之后发生。‎ ‎ When he finished his homework, he played the computer games for a while.‎ ‎ (when相当于after，finish先发生)‎ ‎ When I got to the park, the gate was closed.‎ ‎ (when 相当于before， get to 后发生)‎ ‎ When 引导的从句含有突然发生的意思：‎ ‎ 我在街上散步，他突然喊我。I ________ ________ in the street when he called me.‎ as可理解为“随着......”‎ 随着日子变短，温度开始下降。‎ ‎______ the days are shorter, the ___________ starts to drop.‎ 4‎ 随着时间推移，中国日渐富强。‎ ‎______ time goes by, China is getting richer and stronger.‎ Step4 Exercises ‎【课后拓展】‎ 一、按要求进行句型转换 ‎1. We were having a PE class at four yesterday afternoon.(改为否定句)‎ We _______ ________ a PE class at four yesterday afternoon.‎ ‎2. I was reviewing my lessons at eight last night.‎ ‎(改为一般疑问句，做肯、否回答，对划线部分提问)‎ ‎_____________________________________________________‎ ‎______________________________________________________‎ ‎______________________________________________________‎ ‎3. He ran in the park .(用at this time yesterday改写)‎ ‎______________________________________________________‎ ‎4. They were playing computer games at nine last night.( 对划线部分提问)‎ ‎_______________________________________________________‎ ‎5. I was reading a novel at three yesterday afternoon in the library.( 对划线部分提问)‎ ‎________________________________________________________. I was doing my homework 6.when it began to snow.（提问）‎ ‎ ________ _______ you ________ when it began to snow?‎ ‎7.He hid under the bed because he was afraid of the lightning. （提问）‎ ‎ _______ _______ he ______ under the bed?‎ 二、首字母填空 ‎1. To save the children in the fire, several firemen lost their l_______.‎ ‎2. –There was a big fire in that shopping mall. Many people hurt their arms and legs. --It sounds t_________.‎ ‎3. It was snowing h_________. The snow covered here and there quickly.‎ ‎4. A big snowstorm h______ our city last night. Luckily, no one was hurt.‎ 三、用所给动词的正确形式填空 ‎1. I _____________(play) the computer game at this time yesterday.‎ ‎2. She _____________(watch) TV on the sofa at eight o’clock last night.‎ ‎3. Eddie _________________(have) supper at seven o’clock yesterday.‎ ‎4. We ____________(make) a snowman from 3.00 to 4.00 yesterday afternoon.‎ ‎5. –I ______________(see) you in the street yesterday, Tom. What _______ you ________(do)? --Oh, I ____________(call) my friend.‎ ‎1. I _____________(play) the computer game at this time yesterday.‎ ‎2. She _____________(watch) TV on the sofa at eight o’clock last night.‎ ‎3. Eddie _________________(have) supper at seven o’clock yesterday.‎ ‎4. We ____________(make) a snowman from 3.00 to 4.00 yesterday afternoon.‎ ‎5. –I ______________(see) you in the street yesterday, Tom. What _______ you ________(do)? --Oh, I ____________(call) my friend.‎ ‎6. While he ____________(knock) at the door, my aunt ____________ (cook).‎ ‎7. The students _____________ (sing) and ___________ (dance) happily on the playground at that time.‎ ‎8._______ they______________ (feed) the animals at 5:00 yesterday afternoon?‎ ‎9. Mrs. Green __________ (not wash) clothes at this time yesterday.‎ ‎10. Grandpa ____________ (mend) his clock when I ______________(reach) home.‎ ‎11. As I ____________ (walk) in the park, I _____________(see) some children playing games.‎ 4‎ ‎12. Jane ______________(wait) for me when I ___________(arrive).‎ ‎13. _________ he __________(lie) on the ground at nine yesterday evening ?‎ ‎14. What _______ Jim ___________(write) when the teacher ___________(come) in ?‎ ‎15. My brother __________(fall) off and _______(hurt) himself while he ___________(ride) his bicycle.‎ 四、根据汉语提示完成句子：‎ ‎1、他们那时不在打排球。They __________ ____________ volleyball at that time.‎ ‎2． 当你回来时，他在看电视吗？________ he __________ TV when you came back?‎ ‎3． 昨天中午他在哪里等你？_________ _________ he _________ for you at noon yesterday ?‎ ‎4． 当我离开时，他正在做家庭作业。He ___________ ____________ his homework __________ I left.‎ ‎5. 正当他们扫地的时候，老师进来了。‎ ‎ While they___________ ____________ the floor , the teacher came in.‎ ‎6.地震开始的时候，很多人正在床上睡觉。‎ Many people _______ _______ in the bed when the ________ ________.‎ ‎7.你昨天这个时候在干什么？我在搜索因特网。‎ ‎_________ ________ _________ _________at this time yesterday? ‎ I_________ _________the Internet.‎ ‎8.老师进来时，学生在小声说话吗？是的。‎ ‎_____ the students______ softly when the teacher____ ____the classroom? Yes,______ ______.‎ ‎9.当我看电视的时候，我弟弟在玩电脑游戏。‎ ‎______ I _____ ______ TV, my brother_____ _____ computer games.‎ ‎10.当他们在一家咖啡店闲聊时，突然听到一声像打雷似的巨响。‎ ‎______ they _____ ______with each other in a coffee shop, they suddenly _______ a loud noise______ _______.‎ 五、根据首字母提示写出单词，完成短文 ‎     There was a big earthquake under the India Ocean Area o   1    December 26th 2004 and it    c  2    a large tsunami（海啸）. Tsunamis are great sea waves produced especially by an earthquake.‎ ‎    That morning my classmates and I went to the seaside and had breakfast when we h   3   a loud noise like bombs. People in the sea ran w   4   to the bank and s   5    , ‘Water is coming!’ Someone told us to run to a higher place. We ran as q  6     as we could.‎ ‎    Since we did not know what happened, we were very f  7   . We looked back and saw a t  8    picture. The water waves were so strong that cars  were made to fall upside down and the flood w 9    away everything on the seaside .‎ ‎    We were safe but the n   10   of victims was over 140,000. People call the day ‘Black Sunday’.‎ ‎    1．__________2．__________3．__________ 4．__________5．__________‎ ‎6．__________7．__________8．__________ 9．__________10．__________ ‎ 4‎