高中英语外研版(2019)必修第二册-Unit 5 On the road-Using language-教案
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Unit 5 On the road
Using language
【教学目标】
1. 掌握本课的重要词汇与句式；
2. 使学生能够了解并掌握现在分词作定语的用法，并在真实语境中运用。
【教学重难点】
使学生能够了解并掌握现在分词作定语的用法，并在真实语境中灵活运用。
【教学过程】
Step 1 课前自学
一、知识梳理
Activity 1
1. Look at the sentences from the interview and answer the questions.
a ... there were over 200,000 people reading my blog!
b I love to photograph the rising sun, ...
(1) In sentence (a), who read the blog?
(Answer: Over 200,000 people read the blog.)
(2) In sentence (b), what is rising?
(Answer: The sun is rising.)
(3) When do we put the -ing form before the noun it modifies and when do we put it
after?
(Answer: If we use one single -ing form to modify a noun, we usually put it before the
noun. If the -ing form plus other words is used to modify a noun, it is usually put after the noun.)
2. Then compare them with the following sentences and answer the questions.
c ... there were over 200,000 people who read my blog!
d I love to photograph the sun that is rising, ...
(4) What is the difference between the two groups of sentences?
(Answer: The first group uses the -ing form as attributive while the second group uses
attributive clauses.)
(5) Why does the author choose to use sentences (a) and (b) in the reading passage?
(Answer: Because the sentences using the -ing form as attributive are more concise and
colloquial.)
3. Now get the Ss to look for more sentences with this structure in the interview.
二、主要用法精讲
现在分词是一种非限定动词，兼有动词和形容词的特征，在句子中可以作表语、定语、宾语补足语和状语，一般表示进行或主动的意思。现在分词作定语的具体用法如下，教师可根据学生情况酌情安排教学。
1)单个现在分词作定语，一般置于被修饰的名词之前，常表示正在进行的动作。例如：
leaking pipes（漏水的管道）
2)若被修饰的代词为those, something, everything, nothing等，则现在分词要放在其后。例如：
He is reading something interesting.（他正在读有趣的内容。）
3)现在分词短语作定语，置于被修饰的名词之后。例如：
If you see soldiers wearing sky-blue helmets, they are UN peacekeepers.（如果你看见戴着天蓝色头盗的士兵，他们就是联合国维和人员。）
4)当现在分词或现在分词短语位于被修饰的名词之后时，往往可用定语从句替代。例如：
Peter received a letter saying his grandma would come to see him soon. = Peter received
a letter which / that said his grandma would come to see him soon.（Peter收到一封信，信里说他祖母很快要来看他。）
Step 2 语法探究
过去分词与现在分词作定语时的区别：
The girl standing under the tree is very beautiful. (表主动、进行)
站在树下的女孩很漂亮。
Have you read the novel written by Dickens？(表被动、完成)
你读过狄更斯写的这部小说吗？
Step 3 自学检测
同义句转换
A man living in the village rarely sees subways.
→A man _____________________________ rarely sees subways.
They built a highway leading into the mountains.
→They built a highway _____________________________.
Those who wish to join the club should sign here.
→Those _____________________________ should sign here.
The meeting which is being held now is very important.
→The meeting _____________________________ is very important.
Wale is a small river which/that cuts across the park near my home. →Wale is a small river _____________________________ near my home.
There were some people who were swimming in the river.
→There were some people _____________________________.
1．把句子补充完整；
2．根据所学，写出现在分词在每个句子中充当什么句子成分。
Step 4．教师讲解
1. 核对同学们自学检测的答案。
2. 根据课前自学内容，对现在分词作定语的相关知识进行更详细的补充说明。
3. 让学生把从课文中找到带有现在分词的句子写出来，并分析现在分词在句子中充当什么成分。
Step 5．小组合作学习
全班分为若干个小组并完成以下任务：
1. 完成课本第53页活动2。
2. 限时活动：在课本50-51页的课文中找出更多包含现在分词做定语的句子。看看哪个组找得又多又快又准。
Step 6．Homework
完成课本P53活动3。
