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视频标签：Computers
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视频课题：高中英语人教版必修2Book2 Unit 3 Computers Learning about language西北师范大学附属中学
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Teaching plan
高中英语人教2003课标版 B2U3 Computers
Learning about language
The Present Perfect Passive Voice
Ⅰ. Teaching Objectives:
By the end of this class period, students will be able to:
1. Discover and understand the present perfect passive voice.
2. Analyze the grammar features and generalize the rules of the present perfect passive voice.
3. Learn to apply the grammar into practice, such as speaking and writing. 4. Be concerned about social issues and improve the sense of national pride. Ⅱ. Teaching Difficulties:
1. How to help students generalize the rules of the grammar.
2. How to inspire and guide students to write an essay by using the present perfect passive voice.
3. Use — “have / has + been + V.pp” correctly.
4. The agreement of the subject and the verb as well as the exchange between subject and object in Passive Voice. Ⅲ. Teaching Aids:
A video of our school; A video of China’s four new great inventions; Blackboard; Chalks；A hand-out (learning plan ) and PPT.
Ⅳ. Teaching Procedures:
Teacher’s Activities and Questions
Purpose
Step 1: Revision
Teacher shows some pictures about the development of the computers mentioned in the text in Reading Part. calculating machine → analytical machine ↓ huge machine ← universal machine
↓
PC ( Personal computer ) / desktop →laptop
Step 2: Lead in Teacher asks the students to fill in the blanks by using correct verb structures.
As is known to all, the computer is one of the most
important inventions in the 20th century. Over time the
computer 1 has been changed (change) quite a lot. It began
Review what have been learnt. Help the students (Ss) to learn the grammar in the
setting of the
development of the computer.
Naturally lead in the
topic.
as a calculating machine in 1642. Nearly about 200 years later, the machine was built as an analytical machine that could “think” logically. Later, the “universal machine ” was built to solve mathematical problems.
With time going by, the computer 2 has been made (make) smaller, quicker and cleverer. First as a personal computer and then as a laptop. It 3 has been used (use) in offices and homes from then on. In the early 1960s, computers were connected by a network. The Information could be shared with others through the World Wide Web.
Since the 1970s, many new applications 4 have been found (find) for the computer, and its goal is to provide humans with the life of high quality. Since its birth, the computer 5 has been designed (design) to serve the human race.
Step 3: Discover useful structures
1. Read and think: What is the same (in the passage above)?
The same structure：
have / has + been + V.pp
2. Find out the same structures in the text on P18.
3. Pay more attention to the following time phrases:
时间点 (eg. ... since the 1970s.) (1) since +
S从 + V过 (eg. … since I came here) (2) over time / with time going by
the past / last few months / years (3) in +
recent years (4) for + 一段时间
by now / up to now / so far (5)
recently / lately / already / yet
4. Make a conclusion:
现在完成时
被动语态基本结构
现在完成时的被动语态
Guide the Ss to find
out what is the same. Help the Ss to
generalize the structure of the grammar. Help the Ss to
understand the grammar better.
Help the Ss to
understand when to use the present
perfect tense. And in this way help them know when to use the present perfect passive voice.
Help the Ss to
understand the most important part in the grammar structure is to change the verb “be” into past participle form “been”.
Step 4. Apply what we have learnt:
Task 1: Teacher asks the students to finish the sentences by using the Present Perfect Passive voice.
(1) They have finished the construction of the new bridge by now. →The construction of the new bridge __________________ by them by now.
(2) We have built a new library in our school this year.
→A new library _________________________ in our school this year.
(3) My mother has taught me to be honest since I was very
young.
→I ______________________ (by my mother) to be honest since I was young.
(4) Car accidents have killed ten persons on this road in the
past few months.
→ _______________ _______________________ (by car
accidents) on this road in the past few months.
(5) We have used the TCM (Traditional Chinese medicine) to
treat cancers for a long time.
→_________ _________________________ to treat cancers
for a long time.
(6) They have not finished the construction of the new railway
lines by now.
→___________________________ ____________________
by now.
Task 2: Do some exercises in the College Entrance Examinations.
(1) Since 1958, they ____________________(recognized) as
the national theatre of Israel (以色列). (2017全国卷2) (2) Already this year, 115 measles (荨麻疹) cases
____________________ (report) in the USA. (2017 北京卷) (3) Despite the previous rounds of talks, no agreement
__________ (reach) so far by the two sides. (2015 天津卷) (4) Use a fire extinguisher (灭火器) only if you ___________ (train) to do so. (2018 天津卷 )
(5) The problems of excessive (过度的) energy consumption,
…… and population growth ______________________ (describe) in a book by Thomas L. (2018浙江卷)
Step 5. Consolidations :
Teacher shows some old photos of our school. And then show a video about new campus. Help the students to compare them, Practice the
grammar pattern in completing the sentences.
Help the Ss to focus
on how to change the present perfect active voice into the present perfect passive voice.
Pay attention to how
to change the object in active voice into the subject in passive voice.
Help the Ss to
experience the present perfect passive voice in the College Entrance Examinations.
PS: Ss = students
Ⅴ. Blackboard Design
and then the students have to try to use the Present Perfect Passive Voice as much as possible to describe the changes of our school. 1. Discuss and write down:
What has been changed in our school in the past few
years?
2. Presentation: Ask some Ss to report their answers.
Step 6. Homework: Finish the composition.
Play a short video about China’s four new great inventions to lead in Homework. 假如你是李华，你的英国朋友Jim对中国的“新四大发明”(共享单车、高铁、网购和在线支付/支付宝)很感兴趣，特写信向你询问。请你给他回信,选一项新发明进行介绍。 注意：1.词数不少于100；
2.开头和结尾已给出,不计入总词数。
3.参考词汇：shared bikes, high-speed rail(way), online
shopping, E-payment / online-payment / Alipay.
Dear Jim,
Glad to hear from you._____________________________ ______________________________________________________ ______________________________________________________
Yours, Li Hua
Practice the
grammar structure in the conversation. Inspire the Ss to speak English.
Help the Ss to be
concerned about
social issues and improve the sense of national pride.
Consolidate the use
of the present
perfect passive voice in writing.
The Present Perfect Passive Voice
have / has + V.pp Time Phrases: be + V.pp 1. in the past / last few years
↓ 2. already / recently / ……
have / has + been + V.pp 3. up to now / by now / …
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