9A-Unit4-Grammar精选英语教学PPT课件.ppt(无音频视频)
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1、Grammar Unit 4 of 9AObjectives:1. To use “1. To use “betweenandbetweenand” to express a period of ” to express a period of timetime2. To use “2. To use “from tofrom to” to express a period of time” to express a period of time3. To use “3. To use “beforebefore”, “”, “afterafter” and “” and “untilunti
2、l” to talk ” to talk about when things happenabout when things happen4. To use “4. To use “whilewhile” and “” and “so so” to talk about when ” to talk about when things happenthings happen5. To use comparative and superlative adverbs5. To use comparative and superlative adverbs介词短语介词短语:表示一段特定的时间表示一段
3、特定的时间:fromto 表示表示“从从到到”我通常每晚九点到十点看书。我通常每晚九点到十点看书。这家店通常周一到周五营业。这家店通常周一到周五营业。I always read books from nine to ten every night.I always read books from nine to ten every night.The shop usually opens from Monday to Friday.The shop usually opens from Monday to Friday.between and 表示表示“在在和和之间之间”我今晚七点到八点之间可
4、以看电视吗?我今晚七点到八点之间可以看电视吗?这个小女孩喜欢在午饭和晚饭之间吃些零食。这个小女孩喜欢在午饭和晚饭之间吃些零食。Can I watch TV between seven and eight tonight?Can I watch TV between seven and eight tonight?The little girl likes to eat some snacks between The little girl likes to eat some snacks between lunch and supper?lunch and supper?before, aft
5、er, until表示发生的时间表示发生的时间before意为意为“比比早一点的时候早一点的时候,在在之前之前”; after的意思是的意思是“比比迟一点的时候迟一点的时候,在在之后之后”你进来之前应该脱掉鞋子。你进来之前应该脱掉鞋子。西蒙写完作业后就去打篮球了。西蒙写完作业后就去打篮球了。Before you come in, you should take off your shoes.Before you come in, you should take off your shoes.After Simon finished his homework, he went to After
6、Simon finished his homework, he went to play basketball.play basketball.在你走之前请来看我在你走之前请来看我. .Please see me before you go.Please see me before you go.After he finished his homework, he played chess with After he finished his homework, he played chess with his friend.his friend.做完作业后做完作业后, , 他和朋友下棋他和朋
7、友下棋. .Until的意思是的意思是“直到直到的时候的时候”。 Until和和till一般情一般情况下可以互换,但况下可以互换,但 till一般只用于句子的中间,而一般只用于句子的中间,而until可可以位于句子的中间和句首。以位于句子的中间和句首。用于肯定句时用于肯定句时,主句的动作必须是延续性的,这个动作一,主句的动作必须是延续性的,这个动作一直延续到直延续到until或或till所表示的时间为止所表示的时间为止,译为译为“直到直到为止为止”用于否定句时用于否定句时,主句的动作可以是延续性的,也可以是,主句的动作可以是延续性的,也可以是非延续性的。这个动作一直到非延续性的。这个动作一直到
8、until或或till所表示的时间才所表示的时间才发生,译为发生,译为“直到直到(才)(才)”。让我们等雨停吧。让我们等雨停吧。直到去了黄山,我才知道中国还有这么美的景色。直到去了黄山,我才知道中国还有这么美的景色。Lets wait until/till the rain stops.Until I visited Mount Huangshan, I never knew there are such beautiful views in China.from to betweenand before when if after until1. I wont go to bed _ my
9、mother comes back.2. He could swim _he was five years old.3. You may come to my office _ 9:00 a.m. _ 11:30 a.m. tomorrow.4. We go to school _ Monday _ Saturday.5. Tom will go skating with us _ he has time.6. The train had already left _ we got to the station.Exercises:untilwhenfromtobetweenandifbefo
10、rewhile, as表示事情(动作)同时发生表示事情(动作)同时发生连接同时发生的一长一短两个动作。我们用连接同时发生的一长一短两个动作。我们用while或或as引引导时间较长的动作,导时间较长的动作, 这个长动作在时间较短的动作发生这个长动作在时间较短的动作发生前就已经存在,之后或许还将继续下去。前就已经存在,之后或许还将继续下去。EddieEddie睡觉时,睡觉时,HoboHobo去看电视了。去看电视了。妈妈在烧饭时,妈妈在烧饭时,MaryMary回来了。回来了。连续同时发生两个长动作,我们常用连续同时发生两个长动作,我们常用while.我们在外面时,我们在外面时, 天正下着雨。天正下着
11、雨。While Eddie was sleeping, Hobo went to watch TV.While Eddie was sleeping, Hobo went to watch TV.Mary went back as her mum was cooking.Mary went back as her mum was cooking.EddieEddie睡觉时,睡觉时,HoboHobo正在看电视。正在看电视。It was raining while we were out.It was raining while we were out.While Eddie was sleepi
12、ng, Hobo was watching TV.While Eddie was sleeping, Hobo was watching TV.连接两个同时发生的短动作,我们常用连接两个同时发生的短动作,我们常用as.As the customer sat down, the waiter gave him a As the customer sat down, the waiter gave him a cup of tea.cup of tea.As you see him, give him this letter.As you see him, give him this letter
13、.注意:注意:while和和as引导的状语从句引导的状语从句的时态必须与主句时态保持一致。的时态必须与主句时态保持一致。顾客坐下来时,服务员给了他一杯茶。顾客坐下来时,服务员给了他一杯茶。你看见他时,把这封信交给他。你看见他时,把这封信交给他。当你离开时当你离开时, ,请随身带件雨衣请随身带件雨衣. .As you leave, please take a raincoat with you.As you leave, please take a raincoat with you.Comparatives and superlatives of adverbs:根据句意根据句意, 写出括号中
14、所给词的正确形式写出括号中所给词的正确形式.1. She sang even _ (1. She sang even _ (差差) than usual.) than usual.2. Mother asked her son to walk a bit _ (2. Mother asked her son to walk a bit _ (快快). ).3. Of all the novels I like this one _ (3. Of all the novels I like this one _ (最最). ).4. Who can jump _ (4. Who can jump
15、 _ (高高) in your class?) in your class?5. He should speak _ (5. He should speak _ (少少)and listen _()and listen _(多多). ).bestworsefasterhighestlessmore6. The _ (6. The _ (努力努力) you work, the _ () you work, the _ (好好) ) harvest youll have.harvest youll have.harder better7. Please them not to play so _(
16、7. Please them not to play so _(吵闹吵闹). ).noisily 副词的比较级和最高级的常用结构副词的比较级和最高级的常用结构. .as+as+副词原级副词原级+as +as 意为意为“与与一样一样”, ,表示同级比较表示同级比较1. 1. 她歌唱得像天使一样甜她歌唱得像天使一样甜. .2. 2. 我能一小时跑我能一小时跑3030英里英里. .3. 3. 他在测试中没有他在测试中没有MaryMary做的好做的好. .She sings as sweetly as an angel.She sings as sweetly as an angel.I can ru
17、n as fast as 30 miles an hour.I can run as fast as 30 miles an hour.He doesnt do so well in the test as Mary.He doesnt do so well in the test as Mary.副词比较级副词比较级+than +than 意为意为“比比.更更”, , 表示两表示两者之间的比较者之间的比较1. 1. 本比他哪个懒爸爸起床早本比他哪个懒爸爸起床早. . 2. 2. 他们现在比以前过的更幸福他们现在比以前过的更幸福. .副词比较级副词比较级+ +副词比较级副词比较级, , 意为意
18、为“越来越来越越”1. 1. 雨下得越来越大雨下得越来越大. .2. 2. 你学习越来越努力了你学习越来越努力了. .Ben gets up earlier than his lazy father. Ben gets up earlier than his lazy father. They now live more happily than before.They now live more happily than before.It rained more and more heavily. It rained more and more heavily. You study har
19、der and harder.You study harder and harder.The+ 副词的比较级副词的比较级, the+副词的比较级副词的比较级, 意为意为“越越就越就越”我看到她越多我看到她越多, , 我越不喜欢她我越不喜欢她. . 他打字打得越快他打字打得越快, , 他出的错就越多他出的错就越多. . The+副词的最高级副词的最高级+比较范围比较范围(三者或三者以上三者或三者以上),意为意为“最最”亨利是所有运动员中跳的最高的亨利是所有运动员中跳的最高的. .他在班上学习最用功他在班上学习最用功. .The more I see her, the less I like he
20、r.The more I see her, the less I like her.The faster he types, the more mistakes he will make.The faster he types, the more mistakes he will make.Henry jumps highest of all the athletes. Henry jumps highest of all the athletes. He works hardest in his class. He works hardest in his class. 注注: 在在as,
21、so ,too, very, quite等词后只能用原级等词后只能用原级.1. 1. 谢谢你教我们这么好谢谢你教我们这么好. .2. 2. 汤姆在跳远比赛中表现出色汤姆在跳远比赛中表现出色. .3. 3. 我今天早晨起床太晚了我今天早晨起床太晚了. .4. 4. 他写字不如他哥哥认真他写字不如他哥哥认真. . Thank you for teaching us so well.Thank you for teaching us so well.Tom did very well in the long jump.Tom did very well in the long jump.I got
22、up too late this morning. I got up too late this morning. He doesnt write as/so carefully as his brother. He doesnt write as/so carefully as his brother. 5. 5. 今天相当暖和今天相当暖和, , 但是并不热但是并不热. . Its quite warm today, but its not hot. Its quite warm today, but its not hot. Between from before after until
23、while as Between from before after until while as 1. _ I saw the kangaroo, I never knew an animal 1. _ I saw the kangaroo, I never knew an animal can jump so high. can jump so high. 2. Ill play badminton with you _ I finished my 2. Ill play badminton with you _ I finished my homework. homework. 3. W
24、e must finish it _ 8:00p.m. and 11:00p.m. 3. We must finish it _ 8:00p.m. and 11:00p.m. Come on! We dont have much time. Come on! We dont have much time. 4. You should knock on the door _ you come in.4. You should knock on the door _ you come in.5. Can you watch TV _ 8:00a.m. to 9:30a.m.?5. Can you
25、watch TV _ 8:00a.m. to 9:30a.m.?Untilafterbetweenbeforefrombetween from before after until while as between from before after until while as 6. _ the tiger came, all the animals ran away. 6. _ the tiger came, all the animals ran away. 7. How can you know the ending _ you read the 7. How can you know
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