英语必修3外研版Module6第3课时教案
Period3 Grammar1, Grammar 2
课题
Period3 Grammar 1, Grammar 2
课型
New
教学目标
1. To enable the Ss to know the difference between a defining relative clause and a non-defining relative clause.
2. To make Ss master the contraction of attributive clauses
重点
Enable the Ss to learn t attractive clauses.
难点
How to grasp some grammar points.
学情分析
The Ss can finish the task.
教具课件
1. A recorder 2. A projector 3. A computer
教法
1. question, ask and answer.
2. Individual, pair or group work to make every student work in class.
教学程序
教学内容
师生
活动
时间分配
Step 1
Step 2
Step3
Step 4
Step 1. Grammar 1 — Non-defining relative clause
1. Ask Ss to read out the sentences in Activity 1 and translate them into Chinese.
Suggested Answers:
(1) 毛泽东写过一首词，在这首词中，他表达了“更立西江石壁，截断巫山云雨”。
(2) 三峡大坝是长城和大运河修建以来中国最大的建设工程，它的建造是为了控制洪水和向华中地区提供电力。
(3) 1919年辛亥革命的领导人孙中山，于1919年首先提出了建造横跨长江大坝的设想。
(4) 住在这个地区的100多万人已经搬家。
2. Ask Ss to answer the questions in Activity 1 individually and check with their partners. Then give them the right answers.
3. Give Ss some explanation.
(1) A relative clause that contains essential information about the subject is called a defining relative clause. A relative clause that contains extra information about the subject is called a non-defining relative clause.
(2) 限制性定语从句修饰前面的名词，清楚表达了所修饰的名词的特征。如：
Mao Zedong wrote a poem in which he dreamed of “walls of stone to hold back clouds and rain”。 毛泽东写了一首“更立西江石壁，截断巫山云雨，高峡出平湖”的词。
The ice which covers the South Pole has begun to melt. 覆盖南极的冰已经开始溶化了。
(3) 非限制性定语从句位于确定的名词之后，对这类的名词不做限制性的描述，只是对该词进一步说明和补充。这类从句即使省略也不会引起意义上的混乱。由逗号隔开。如：
Sun Yat-sen, who was the leader of the 1911 Revolution, first suggested the idea in 1919. 早在1919年，领导了辛亥革命的孙中山就首次提出了要在长江上修筑大坝的设想。
He designed the first “web browser”, which allowed computer users to access documents from other computers. 他设计了第一个网络浏览器，从而使电脑使用者可以从其它电脑中获取文件。
4. Ask Ss to do the exercises in Activity 2 as follows:
(1) Ask Ss to underline the attributive clause in each sentence.
Suggested Answers:
① who became President of the Republic of China in 1912
② which is the world’s longest canal
③ which was built in the seventh century
(2) Ask Ss to discuss if the sentences are defining relative clause or non-defining relative clauses. Get them to add commas if necessary.
5. Ask Ss to do Activity 3 individually, then check with a partner. Give the right answers and some explanation if necessary.
6. Ask Ss to translate the following sentences into English.
(1) 你昨天在校门口遇见的老人是一位教授。
(2) 这位老人是个教授，他已经80岁了。
(3) 我们上周参观的寺庙始于宋朝。
(4) 这个寺庙始于宋代，是我们镇上的名胜。
Suggested Answers:
(1) The old man that you met at the school gate is a professor.
(2) The old man is a professor, who is 80 years old.
(3) The temple which we visited last week dates from Song dynasty.
(4) The temple, which is a place of interest in our town, dates from Song dynasty
Step 2. Grammar 2 – contraction of attributive clauses
1. Ask Ss to read out the four sentences in Activity 1 on page 56, then get them to answer the three questions in paies.
2. Give Ss some explanation.
For your reference:
When the relative pronouns are used as objects in the attributive clauses, they can be removed, and the meanings are the same.
3. Ask Ss if the relative pronouns in the following sentences can be removed and the meanings are still the same.
(1) I will remember the travel which impressed me deeply.
(2) Our English teacher who is standing over there is just 21 years old.
(3) The college Ss who knew the truth left the small town.
Suggested Answers:
They can’t be removed. If they are removed, the meanings are different, because they are used as subjects.
4. Ask Ss to do Activity 3 individually, and then check the answers in pairs.
5. Ask Ss to read the example in Activity 4, get them to do the activity individually.
6. Ask the Ss to read the two sentences in Activity 2, telling them that the meanings are the same after the words in brackets are deleted.
T: 当定语从句的主语和be动词同时省略后，余下的部分成为分词短语，仍起定语的作用，整句的意思不变。分词短语包括现在分词短语和过去分词短语，现在分词短语表示主动关系，过去分词短语表示被动关系。如：
(1) What’s the name of that young man (who is) talking to Mr. Li at the school gate?
(2) Which university is the professor (who is) giving the lecture from?
(3) What do you think of the speech (which was) given by his this morning?
(4) I enjoy all the novels (which were) written by Dickens.
Step 4. homework
1. Ask Ss to review what they have learned in the period.
2. Ask Ss to finish the Grammar exercises in the Workbook.
Choose the right answer
Learn & do exx
Learn & do exx
17’
27’
1’
板书
Period3 Grammar 1, Grammar 2
1(1) 有关术语：在英语中用来修是一个名词或代词的句子叫定语从句。定语从句须放在所修饰词之后，定语从句所修饰的词叫先行词，引导定语从句的词叫关系词。
(2) 如何确定关系词
方法一：准确判断关系词在定语从句中的成分，关系词作主语、宾语，用关系代词；关系词作状语，用关系副词；关系词作定语则用whose, 或which。
方法二：看定语从句中的谓语动词是及物动词还是不及物动词。如是及物动词，用关系代词；不及物动词则用关系副词。
2，although与 while
相同点：都是连词，都可引导让步状语从句；
不同点：①although意为“虽然，尽管”，相当于though，所引导的句子通常置于句首。含although从句的复合句可以转化为由but引导的并列句，但although与but不能同时出现；②while意为“然而，但是”，可用作并列连词，表示前后的对比，一般不与but转换，所引导的句子不能置于句首。
教学后记
The Ss can’t grasp the attractive clauses.
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