Unit 4 Information technology Lesson 1 Avatars 课件(共29张PPT，内镶嵌视频)-北师大版(2019)必修第二册

(共29张PPT)
Unit 4
INFORMATION
TECHNOLOGY
Lesson 1 (Grammar)
Learning Objectives
PART. 01
Learning Objectives
Accurately master the grammar points of this unit, and be able to use them accurately and fluently in listening, speaking, reading and writing to improve language comprehension and expression abilities.
Through grammar learning, understand the application differences of information technology in different cultural backgrounds, and enhance cultural confidence and cross-cultural understanding.
Use thinking methods such as analysis and induction to understand grammar rules, improve logical and innovative thinking, and learn to think and solve problems in English.
Actively use strategies, learn independently or cooperatively, broaden learning channels, improve learning efficiency, and lay a foundation for lifelong learning.
Teaching Focuses and Anticipated Difficulties
Master the formation, meaning, usage of the past future tense and its differences from easily confused tenses, and be able to use it correctly in sentences, discourses and communications.
Tendency to confuse time reference points, easy errors in subject-verb agreement, difficulty in distinguishing the subtle differences between the two structures, and challenges in quickly identifying the usage scenarios in complex contexts.
Lead-in
PART. 02
Twenty years ago, people imagined the future!
Clothing
Food
Housing
transportation
衣
食
住
行
Watch the video and understand the sentence "looking at the future from the perspective of the past".
Grammar
PART. 03
Read the sentences. Write P below the underlined parts that refer to the past and PF below the underlined parts that refer to the future in the past.
1. Yet, very few people knew ( ) that future avatars would have ( ) such a wide variety of forms and uses.
2. When people started ( ) creating their own avatars, they discovered ( ) that they were going to have ( ) the power to create new identities that did not look or act like their real selves at all.
3. Many Internet users realised ( ) that their avatars would be seen ( ) by many people, not just their friends.
P
PF
P
P
PF
P
PF
Complete the sentences talking about the future in the past.
1. In the 1990s, few people knew that ...
2. When computers were invented, it was believed that ...
3. In the 1990s, users of smartphones realised that ...
the Internet would change global communication.
they would only be used for complex calculations in laboratories.
they would gradually replace traditional mobile phones and become essential daily tools.
Complete the sentences talking about the future in the past.
4. The convenience of the Internet made Internet users discover that ...
5. When avatars first appeared in the 1980s, few people believed that ...
they could connect with people across the world instantly and access unlimited information.
they would become a key part of virtual social interactions and online communities.
Pair Work. Create your own avatar. Introduce it to your partner.
What does it look like
Why did you decide to create it this way
Where would you use it
Pair Work. Create your own avatar. Introduce it to your partner.
What does it look like
Why did you decide to create it this way
Where would you use it
Suggestion:
This is my avatar. She has short pink hair and big, curious brown eyes, with a yellow sweater that feels cheerful.
I chose this look because pink makes me happy, and the sweater feels cozy—like how I want to come across. The curious eyes show I love learning new things.
I’d use her on study forums and art-sharing apps. She’s bright and friendly, a little like me but with more color!
Grammar 过去将来时
定义：从过去的某一时间点来看将要发生的动作或存在的状态
未来
现在
过去
对我来说，现在是未来，未来也是未来
对我来说，过去是过去，现在也是过去
对我来说，过去是过去，未来是未来
Grammar 过去将来时
形式 例句
基本结构 would + 动词原形 She said she would visit her grandma next week.
was/were going to + 动词原形 They were going to have a party last night, but it rained.
否定 would not (wouldn’t)+ 动词原形 He promised he wouldn’t be late again.
was/were not going to + 动词原形 I was not going to buy that expensive phone.
疑问 Would + 主语 + 动词原形？ Did she say when she would come back？
Was/Were + 主语 + going to + 动词原形？ Were they going to start the project yesterday？
Grammar 过去将来时
表示主句动作发生时（过去）尚未发生的动作。
例：He told us he would finish the work in three days.
宾语从句
描述过去的计划或安排，尤其是过去看来即将发生的动作。
例：We were going to travel to Paris last month, but we changed our mind.
描述过去的计划或安排
用于铺垫过去语境下的 “未来情节”。
例：The boy didn’t know that his life would change forever.
故事或叙述
Grammar 过去将来时
一般过去时
一般现在时
一般将来时
一般过去时
He thought he would win the game.（过去将来时，当时未发生）
He won the game yesterday.（一般过去时，已发生）
She says she will come.（一般将来时，以现在为参照）
She said she would come.（过去将来时，以过去为参照）
would：侧重单纯的预测或习惯性动作。
例：People believed robots would help humans a lot.
was/were going to：侧重“计划好或有迹象发生”的动作。
例：The sky was dark, and it was going to rain.
一般将来时
特殊情况
易混
Grammar 过去将来时
一般过去时
一般现在时
一般将来时
一般过去时
yesterday（昨天）、the day before yesterday（前天）、last week/month/year（上周 / 月 / 年）、last night（昨晚）、...ago（…… 之前），如three days ago（三天前）、in 2010（在2010年）、just now（刚才）、then（那时）
tomorrow（明天）、the day after tomorrow（后天）、next week/month/year（下周 / 月 / 年）、in + 时间段（在…… 之后），如in three days（三天后）、soon（很快）、later（稍后）
常与表示“过去的想法、计划”的动词搭配，如said（说）、thought（想）、hoped（希望）、planned（计划）等
一般将来时
过去将来时
标志词
Grammar 过去将来时
判断时态
1. They will hold a meeting to discuss the problem next Monday.
2. She visited her old friend in London last summer.
3. The teacher said the exam would be held in the next term.
4. I finished my homework an hour ago.
5. Look at the time! We are going to miss the train.
一般将来时
一般过去时
过去将来时
一般过去时
一般将来时
Grammar 过去将来时
用过去将来时进行句型转换
1. 直接引语：“I will finish my homework tonight,” Tom said.
间接引语：Tom said ______ ______ ______ his homework ______ ______.
2. 直接引语：“We are going to have a picnic this weekend,” they told me.
间接引语：They told me ______ ______ ______ to have a picnic ______ _________.
3. 直接引语：“The rain will stop soon,” the old man said.
间接引语：The old man said ______ the rain ______ ______ soon.
he would finish
that night
they were going
that weekend
that
would stop
Grammar 过去将来时
短文填空
In 2000, my parents ______________ (think) that I ______________ (become) a teacher when I grew up. They ______________ (say) I ______________ (be) good with kids. At that time, I ______________ (plan) that I ______________ (study) computer science, because I ______________ (believe) technology ______________ (change) the world. Now, I’m a software engineer, and my parents often laugh and say they never thought I ______________ (work) with computers!
thought
would become
said
would be
planned
would study
believed
would change
would work
Exercise
PART. 04
Exercise: Fill in the blanks with the appropriate forms of the given words.
1. She __________ (visit) her uncle last summer vacation.
2. They ______________ (go) to the concert tomorrow evening.
3. He said he __________ (finish) the report by Friday.
4. I __________ (see) a wonderful movie with my friends yesterday.
5. The students ________________ (have) a math test next Monday.
visited
will go/
are going to go
would finish
saw
will have /
are going to have
Exercise: Fill in the blanks with the appropriate forms of the given words.
6. My mother told me she ________________ (buy) a new dress for me.
7. We __________ (live) in this city for ten years before we moved to Beijing.
8. The weather forecast says it ______________ (rain) tomorrow morning.
9. The teacher said that we __________________ (have) a school trip the next month.
10. They ________________ (play) basketball on the playground when I arrived there.
would buy /
was going to buy
had lived
will rain /
is going to rain
would have /
were going to have
were playing
Summary
PART. 05
ADD THE TITLE HERE
Lesson 1 (Grammar)
过去将来时的构成
过去将来时
过去将来时的形式
过去将来时的用法
过去将来时与一般过去时和一般将来时的区别
过去将来时的概念
Homework
PART. 06
Homework
Please write a short essay on the theme "Twenty years ago, my family once imagined..." with at least 3 uses of the past future tense (would / was/were going to).
See you next class!