Unit 2 Discovering useful structures ppt课件-（2021新）人教版高中英语高必修第三册.pptx

1、Grammar V-ing form used as adverbial and object complement Learning goals:1.To learn the usage of V-ing form used as adverbial or object complement in a sentence.2.To apply what we learn in this period to exercises, especially in writing, and grammar filling.1. Clarie had her luggage (check) an hour

2、 before her plane left.2. My elder sister had her wallet (steal)on a bus last month.3. With a great weight (take) from her mind, she passes all the tests successfully. 4. (give) more time, the trees could grow more taller.5. (leave) alone at home, he didnt feel afraid at all.review:checkedstolentake

3、n Given Left 1.V-ing作状语v-ing形式作状语，其逻辑主语是句子的主语，且和主语构成主动关系。相当于一个状语从句或并列句用法用法1 1例：例：Hearingthenews,hegotfrightened.=Whenheheardthenews,hegotfrightened.1.v-ing形式作时间状语用法用法2 2例：例：Notknowingheraddress,Icantwritetoher. =Because I dont know heraddress,Icantwritetoher.2.v-ing形式作原因状语用法用法3 3例：Takingthepaththatl

4、eadsoutofthetown,youwillcometoalake.=If you take the path that leads out of the town, youwillcometoalake.3.v-ing形式作条件状语用法用法4 4例：例：Livingmilesaway,heattendedthecourse.=Although he lived miles away, heattendedthecourse.4.v-ing形式作让步状语用法用法5 5例：They stoodthereforhalfanhourwatchingthestarsinthesky.= Theys

5、toodthereforhalfanhour and watched thestarsinthesky.5.v-ing形式作方式、伴随状语用法用法6 6例：The child fell off the tree, hitting his head against the ground.=The child fell off the tree, and he hit his head against the ground.6.v-ing形式作结果状语知识延伸知识延伸1:独立主格结构独立主格结构 I waiting for the bus, a bird fell on my head Time

6、permitting, well watch a movie later this class. 分词主语与句子主语不一致时，需要带上自己的分词主语与句子主语不一致时，需要带上自己的逻辑主语，构成独立主格结构逻辑主语，构成独立主格结构知识延伸知识延伸2: ( doing 和和having done 作状语的区别作状语的区别)1.Seeing nobody at home, she decided to leave them a note. （主动意义，v-ing的动作和谓语的动作几乎同时发生。）2.Having waited for an hour, he realized he had le

7、ft his wallet at home.(主动意义，v-ing的动作发生在谓语的动作之前。） doing 作状语，表示的动作与句子谓语动词同时作状语，表示的动作与句子谓语动词同时发生；发生；having done表示的动作发生在句子谓语动表示的动作发生在句子谓语动词之前词之前知识延伸知识延伸3： （doing 和和 to do 作结果状语的区别）作结果状语的区别） The COVID-19 broke out throughout the world, causing hundreds of thousands of deaths.I came to school last Sunday

8、morning ,only to find nobody was in our classroom.doing 作结果状语时，常表示自然而然，情理之作结果状语时，常表示自然而然，情理之中的结果；中的结果；to do 作结果状语时往往表示出乎意作结果状语时往往表示出乎意料的结果，通常与料的结果，通常与only 连用。连用。使用v-ing形式作宾补，常表示宾语和宾补之间是主动关系或表示v-ing形式的动作正在进行。 2.V-ing作宾语补足语用法用法1 1感官动词（短语）see, watch, observe, look at, notice, hear, listen to, feel等后常接v

9、-ing形式作宾补，宾语和宾补之间是主动关系主动关系。以see为例：see +宾语+ doing sth. 看见正在做某事1.感官动词+宾语+v-ing宾补1). have +宾语+ doing sth. 使持续做某事2). get +宾语+ doing sth.使开始做某事3). keep/leave +宾语+ doing sth.使一直做某事用法用法2 2例：Im sorry to keep you waiting for so long.2.使役动词+宾语+v-ing宾补例：With the time passing by, he almost forgot everything in

10、the past.随着时间的流逝，他几乎忘记了过去所有的事情。用法用法3 33.with+宾语+v-ing宾补当堂检测当堂检测101.单句语法填空：单句语法填空：1.Chinas image is improving steadily(平稳地)，with more countries _ (recognize) its role in International affairs.2.She sat at the table _ (enjoy) the meal.3.He suddenly woke up at midnight when he heard someone _ (knock) a

11、t the door.4.I hurried to the supermarket, only_ (find) it was closed.5.With the mid-term exam _(approach), we are all busy reviewing our lessons.6.He left in a hurry,_ (follow) by his students. 7._ (work) for a few years , she was sent to study in Europe and then in 1939,in USA.recognizingenjoyingk

12、nocking to find approachingfollowedHaving worked必做题2.写作应用写作应用1.得知你对中国历史感兴趣，我感到很骄傲。得知你对中国历史感兴趣，我感到很骄傲。2.随着时间的流逝随着时间的流逝,人们的环保意识提高人们的环保意识提高(raise)了。了。3.面对这些问题，我写信向你寻求一些建议。面对这些问题，我写信向你寻求一些建议。4.英语老师给了我们一些提示英语老师给了我们一些提示(tip)，使这问题解决，使这问题解决 起来更容易。起来更容易。Knowing that you show interest in Chinese history, I feel more than proud.With time going by , peoples awareness of environmental protection is raised.Faced with these problems , Im writing to ask you for some advice.Our English teacher gave us some tips , making it easier to solve the problem.Bye-bye!