Learning about Language优秀教案

Book4 Unit4 Grammar The Present Participles as Adverbials现在分词作状语

教材分析：本课是人教版必修四第四单元语法课，现在分词充当句子成分是本课的语法重点，本单元阅读材料中出现了大量现在分词作状语的用法，高考也常有涉及。因此，本课围绕课时重点进行了四个方面的分析，一是现在分词的形式，二是现在分词所充当的状语类型，三是现在分词作状语和状语从句的转换，四是现在分词与主句主语的一致性。为了实现教学目标，我在教学过程中主要采取了观察归纳法、示范法、小组合作引导学生认识问题、分析问题、解决问题。为了巩固教学成果，我参考当前的常考题型如单句改错、短文填空设置了与教学内容紧密相关的作业题，希望能够达到巩固提升的效果。

学情分析：本班学生为高一年级实验班学生，学习基础总体较好，但因为还处于高中初级阶段，所以教学内容应当居中，教学过程中教师要及时点拨引导，做好学生的学习助手。

教学目标：通过本节课的学习，学生能够

知识目标：1.明确现在分词的各种形式；

2. 识别现在分词作状语的类别；

3.能把状语从句转换成相应的现在分词状语；

4.现在分词作状语的主语一致问题；

能力目标：学生能够正确使用现在分词作状语；

情感目标：1.树立英语学习的信心

2.增强小组的竞争与合作意识。

教学重点：1.帮助学生实现状语从句和现在分词作状语的互换

2.现在分词和不定式作状语时，其逻辑主语一般应与句子的主语保持一致。

（对策）：探究观察、小组讨论

教学难点：1.连词+分词形式（分词作状语的省略问题）

2. 现在分词的独立主格结构

（对策）：归纳法

教学用具：多媒体、黑板

教学过程：Lead-in→Presentation(Step2)→Consolidation(Step3)→Homework(Step4) 教学过程：

Step1:Lead-in

（3mins）

Appreciate a short poem and find out the present participles used as adverbials.

Step2:Presentation

(32mins)

Part1:Changes in tense and voice of present participles

(5mins)

（现在分词在时态和语态变化）

语态

主动

被动

时态

语态

语态

一般式

几乎同时

完成式

有明显时间差

主动关系

被动关系

(1). ____ in the street,she saw an old friend.

A.Walking

B.walk

C.having walked

D.being walked (2).____ by his father, my friend was unhappy.

A.Having

punished

B.punished

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C. Being punished

D.Punishing (3).___ such heavy pollution already,it may be difficult to clean up the river.

A. Having suffered

B.Suffering

C.To suffer

D. Suffered (4). _______ for three minutes, the girl felt nervous.

A.stare at

B.Being stared at

C.Having been stared at

D.To stare at Part2 识别现在分词所充当的各种状语

(8mins)

1.Review:判断V-ing在句中所做的成份

①. Coming late for school is a bad habit.

②.We should avoid talking loudly in a library.

③.They are exciting .

④. They are visitors coming from several countries.

⑤. Coming late, the girl missed the train.

2.Observe and think :现在分词可以做哪些状语？

Competition: Recognize the adverbials according to the information and tell what kind of adverbial it is.)

Example:Having been translated into 20 languages, the book is famous all over the world now.

(原因状语)

①.Being ill, he couldn’t come to school today.

(

)

②.Using your head, you will find a way.

(

)

③.Having arrived at the factory,they immediately set to work.

(

)

④Having a cold, the boy went to school as usual.

(

) ⑤.She was so angry that she threw the toy on the ground, breaking it into pieces.

(

)

⑥.The girl came in smiling.

(

) 小结：现在分词可以充当原因条件、时间、让步、结果、伴随或方式状语。其中，_______、_______、______、_______常位于句首，_____、______常位于句尾，有时伴随状语或方式状语可谓语句中或句首。Part3 现在分词作状语，与状语从句的转换（13mins）

1.一句多译：观察并试着总结状语从句怎样转换成分词作状语。（从句

分词）

When we are crossing the road, we often say: “Be careful!”

When we are crossing the road,we often say: “Be careful!”

When we are crossing the road,we often say: “Be careful!”

小结：当从句主语和主句主语一致，且从句谓语和主句主语是主动关系时，可以省略状语从句的_____、_____,当谓语中含有be或助动词do时，也应一起省略），再把谓语中的实义动词变成_______，其他不变。

2.请把下列状语从句转换成现在分词作状语。

Eg: After he heard a strong sound, he went out of the room for a look.

= Hearing a strange sound, he went out of ….

①.As the girl was seriously ill, she was taken to hospital immediately.

______________________________________________________ ②.Being seriously ill, the girl was taken to ….

________________________________________________________ ③.As she didn’t know any French, she couldn’t get any one to help her.

________________________________________________________ 3.看谁反应快：判断下列现在分词作哪种状语，并把其可以替换的逻辑连词填入括号中。

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①.Working harder at English, you will make greater progress.

(_______ 状语)

___you work harder at English, you will make greater progress.

②.Feeling very tired, they kept running.

(______ 状语)

________ they felt very tired, they kept running.

③.Having finished their homework, they went home.

(______ 状语)

______ they had finished their homework, they went home.

*Having finished their homework表现的动作在went home(

), 故用分词的（

）式. ④.The children ran out of the room,laughing merrily.

(______ 状语)

提示：现在分词作伴随状语相当于一个由______连接的并列谓语或并列句。

Part4:主语的一致性

(6mins) 1.从句的主语和主句的主语必须一致。

判断下列句子的正（T）误(F): Hearing the news, tears ran down her face.

(

) Hearing the news, she cried.

(

) Looking out through the window,the garden is beautiful.

(

)

Looking out through the window,I found the garden beautiful.

(

) 提示：

(1).从句的主语和主句的主语必须一致。即-ing分词作状语时，它的逻辑主语就是整个句子的主语，并表示主动的关系。否则，

(2).分词必须有自己的主语。这种带主语的分词叫做分词的独立结构。在句中作状语，表示时间、条件、原因、结果、让步、伴随或方式。

2.完成句子

①._____________,we`ll do another two exercises.

如果时间允许，我们将做另两个练习。

②.______________,we decided to go swimming.

天气好，我们决定去游泳。

Step3:Consolidation

(5mins)

用动词的恰当形式填空。

While in London,I just had to go to the British Museum.There`s so much1._____(see) and I only had time to spend a few hours there. 2.____ (see) the pocket watches,I was reminded od the old watch my grandfather used to wear.I don`t think I ever saw him without it.Then I went to the Monkey Gallery.They have got an 3. _____ (amaze) collection of coins,some 4.____ (be) over 2,000 years old.Next stop was the Chinese collection. 5._____(live) in Hong Kong for so many years,I was very interested in this. After looking at the Chinese collection, I had hoped to see the Mexican collection.Unfortunately, when 6.____(get) there,I found that it was closed. 7.____(spend) the whole morning walking around the museum,I decided that I wanted to do something very different in the afternoon.So I went to the London Eye 8._____(get) a bird`s view of the city.When 9.____ (see) from the top of the Eye,some of the biggest buildings appear very small.After that,tired from all the walking,I went back to my room at the hotel 10.____(stand) on the riverside and slept for a couple of hours before going out to have dinner.

Step4:Homework

Go on to fill in the blanks with the correct forms of Verbs

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板书设计

The Present Participles as Adverbials 现在分词作状语

1、现在分词的形式：V-ing (即doing) 否定形式：not doing 2、状语从句结构：逻辑连词+主语+谓语+其他

分词作状语结构：Doing sth. Not doing sth. 小组加分统计： Group1

Group 2

Group3

Group4

教后反思：_______________________________________________________________________ ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________________________________________ ________________________________________________________________________________________________________________________________________________________________

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