内容正文:
Exploring
Lesson 6
Grammar in Use
Suffixes -less and -ful &
The past continuous tense
Unit 4 Changing and Growing
Lesson Objectives:
In this lesson, we will be able to:
1. Understand and use suffixes -less and -ful to form adjectives.
Understand and use the past continuous tense (was/were + -ing)
to talk about ongoing past actions.
2. Use new vocabulary and grammar in context through pair work
and group activities. Complete grammar and vocabulary tasks
accurately.
3. Create short stories or dialogues using the target grammar and
vocabulary. Reflect on personal experiences using the past
continuous tense.
More examples
care 小心;谨慎
use 使用
power 实力
hope 希望
careful 细心的;仔细的
careless 粗心的
useful 有用的
useless 无用的
powerful 有影响力的
powerless无能力的
hopeful 有希望的
hopeless 没希望的
后缀 -ful
含义:表示 “充满…… 的”带有肯定或积极的语义
后缀 -less 的用法
含义:表示 “无…… 的”
“缺乏…的”“不…… 的”,
带有否定或消极的语义
1.meaning 意义 有意义的___________ 没有意义的___________
2.hope 希望 hopeful______________ hopeless_______________
3.harm 伤害 harmful_______________ harmless______________
猜词义
meaningful
meaningless
有希望的
无望的
有害的
无害的
Activity 1
Look at the pictures and read the sentences. Pay attention to the words in bold.
The doctor feels helpless
to save the patient's life.
He wishes he could be
more helpful.
The symbols are very useful to pay online,
but they are useless without a cellphone.
Your boss doesn't allow any careless mistakes,
so you'd better be very careful in your work.
you’d=you had
had better do sth. 最好做某事
had better not do sth. 最好不要做某事
Activity 2
Complete the sentences with the correct form of the given words.
1. Li Hong was _________ (joy) because she got a good grade in the
exam.
2. After years of hard work, my uncle became ___________(success)
and now he lives an easy and comfortable life.
3.You were doing very well yesterday. Be __________ (hope) and
you'll succeed.
4. He learned a lot after visiting many ___________ (wonder) places.
5. Smoking is __________ (harm). No one should smoke in public.
joyful
successful
hopeful
wonderful
harmful
get--got 获得;得到
get a good grade 取得好成绩
in public 公开地; 在公共场合
live a/an ...life 过...样的生活
no one=nobody 没有人
Activity 3
Hurtful?
What do you think of it?
Youth is an important period of time for growing up.
[juːθ]青年时期;年轻;青年
Aimless?
Helpful?
Painful?
Activity 3
Complete the text and fill in the blanks.
aimless helpful hurtful painful priceless useless
无目标的 有伤害的 痛苦的 无价的
Youth is an important period of time for growing up. It can be hard and ___________, but you grow in every way and learn more about life. Sometimes, you may feel ___________. But your teachers are always there for you, and your friends can also be ___________. Some people may say something ___________ to you, but they might not mean it, and you can talk to them and learn to communicate with people. Maybe, you find some subjects difficult and ___________. However, you will understand the true value of knowledge later on. In a word, youth is a ___________ expericence. You should make the most of it.
painful
aimless
helpful
hurtful
useless
priceless
Activity 3
Find the key phrases.
aimless helpful hurtful painful priceless useless
Youth is an important period of time for growing up. It can be hard and ___________, but you grow in every way and learn more about life. Sometimes, you may feel ___________. But your teachers are always there for you, and your friends can also be ___________. Some people may say something ___________ to you, but they might not mean it, and you can talk to them and learn to communicate with people. Maybe, you find some subjects difficult and ___________. However, you will understand the true value of knowledge later on. In a word, youth is a ___________ expericence. You should make the most of it.
painful
aimless
helpful
hurtful
useless
priceless
grow up 成长
later on 稍后
in a word=in short 简言之;
一句话; 总之
make the most of...
= make full use of... 充分利用...
the value of ...
...的价值
When I was dreaming about you.
You were dreaming of me.
当我梦见你的时候你的梦里也有我的身影
过去进行时
过去进行时结构:
主语+was/were + Ving+其他
The past continuous tense 过去进行时
grammar
1)概念
过去进行时用于描述过去某一时刻或过去某一段时间内正在进行的动作或存在的状态
She was watching TV at 8 o'clock last night.
昨晚 8 点,她正在看电视。
He was doing his homework from 8:30 to 10:00 last night.
昨晚 8:30 到 10:00他正在写作业。
过去进行时
grammar
2)构成:主语+was/were + Ving+其他
主语 be动词
he、she、it等第三人称单数和I was
we、you、they等复数 were
e.g. While I ________ working in the garden, I hurt my back.
我在花园里劳作时,把背给弄伤了。
They _________ staying here between 1998 and 1999.
1998年到1999年期间他们住在这里。
was
were
句式 例句
肯定句 He was reading a novel.(他正在读小说。)
否定句 They were not playing football.(他们没在踢足球。)
一般疑问句 Were you listening to music?(你当时在听音乐吗?)
特殊疑问句 What was she doing at that moment?(那一刻她在做什么?)
The past continuous tense
grammar
2)句型结构
结构
肯定句 主语+was/were+Ving+其他.
否定句 主语+wasn’t/weren’t+Ving+其他.
一般疑问句
及回答 —Was/Were+主语+Ving+其他?
—Yes,主语+was/were.
—No,主语+wasn’t/weren’t.
特殊疑问句 特殊疑问词+was/were+主语+Ving+其他?
The past continuous tense
grammar
e.g. I ________ __________ at 7 o'clock last night.
我昨晚7点正在读书。
She ________ ____________ TV when I arrived.
我到的时候她没在看电视。
—________ you listening to music just now? 你刚才在听音乐吗?
—______________/_______________
是的,我在听音乐。/不,我没在听音乐。
What ________ you __________ when it rained?
下雨的时候你在做什么?
was reading
wasn't watching
Were
were doing
Yes, I was.
No, I wasn't.
Positive form 肯定形式 Negative form 否定形式
I was helping Xiao Ya with her mood problem at 7:00 p.m. yesterday. He wasn't helping Xiao Ya with her mood problem at 7:00 p.m. yesterday.
They _____ You _______
Question form 疑问形式
____ she helping Xiao Ya with her mood problem at 10:00 a.m. yesterday ? Yes, she ______. / No, she _________.
Were they Yes, they ______. / No, they ________.
were
weren't
Was
was
wasn't
were
weren't
Activity 2
3)常见时间标志词
具体时刻:
at 8 o'clock last night 在昨晚8点 at that moment在那时
at this time yesterday 昨天这时 just now刚刚
时间段:
from 3 to 5 p.m. last Sunday 上周日3点到5点
Activity 1
Pair work. Read the conversation. Pay attention to was/were doing.
What were you doing at
this time yesterday?
I was watching a movie
with my parents.
What movie were you watching?
Is it My Country and My People?
Yes. We felt moved when
we were watching it.
昨天这个时候你正在干什么?
Activity 3
Pair work. Look at the pictures and talk about what people were
doing at 9:00 a.m. yesterday?
A: What was he/ she doing? What were they doing?
B: He /She was .../ They were ....
A: What was she doing at 9:00 a.m. yesterday?
B: She was tidying up the bathroom.
tidy up the bathroom
收拾;整理
Activity 3
Pair work. Look at the pictures and talk about what people were
doing at 9:00 a.m. yesterday?
jog
A: What ______ she ________ at 9:00 a.m. yesterday?
B: She ______ __________.
write a postcard
写明信片
A: What ______ he ________ at 9:00 a.m. yesterday?
B: He ______ __________ a postcard.
was doing
was jogging
was doing
was writing
Activity 3
Pair work. Look at the pictures and talk about what people were
doing at 9:00 a.m. yesterday?
ride bikes
骑自行车
A: _______________________at 9:00 a.m. yesterday?
B: ________________________.
What were they doing
They were riding bikes
闯关练习
1. —What _______ you _______ at eight last night?
— I was watching a movie with my family.
A. did; do B. are; doing C. were; doing D. do; do
2. My brother _____ basketball every day when he was in middle school.
A. plays B. is playing C. played D. was playing
3. Look! The children _______ football on the playground.
A. play B. played C. are playing D. were playing
4. While I _______ my homework, my mother came back.
A. do B. did C. am doing D. was doing
5. She _______ to Beijing last month.
A. goes B. went C. is going D. was going
6. —Where is Tom? — He _______ a model plane in his room now.
A. makes B. made C. is making D. was making
C
C
C
D
B
C
Language points
Activity 1
9. What were you doing at this time yesterday? 你昨天这时正在干什么?
was/were+doing sth. “过去正在做某事”,为过去进行时的结构。
e.g. They were watching TV when I came back yesterday.
当我昨天回来时他们正在看电视。
【即时练习】1)Suzy ________ her bedroom at this time yesterday, so
she didn’t go shopping.
A. tidies B. tidied C. is tidying D. was tidying
2)While I ________ dinner, my brother ________ video games at this time
yesterday.
A. cook; was playing B. was cooking; was playing
C. cook; plays D. am cooking; plays
D
B
Language points
Activity 1
10. We felt moved when we were watching it.
我们观看的时候感到很感动。
moved adj. “感动的”,主语一般为人。
e.g. I was moved when they helped me. 当他们帮助我的时候我很感动。
辨析:moved和moving
单词 意思 用法
moved 感动的 常修饰人。
moving 感人的;令人伤感的 常修饰物。
【即时练习】—What do you think of the film Volunteer Army during the
National Day? —The film _____ is good, and I felt _____ when I saw
so many soldiers lose their lives to defend the country against its enemies.
A.itself; boring B. itself; moved C. itself; exciting D. themselves; interested
B
The past continuous tense
grammar
5)用法
(2)表示过去一段时间内持续发生的动作。
e.g. I ______ ________ the piano from 7:00 to 8:00 yesterday
evening. 昨天晚上7点到8点我正在弹钢琴。
(3)表示一个过去的动作发生时,另一个过去的动作正在进行。
e.g. It ______ ________ heavily when I left the supermarket.
我离开超市时,外面正下着大雨。
was playing
was raining
The past continuous tense
grammar
5)用法
(4)当两个延续性动作同时进行,两者都可以使用过去进行时。
e.g. I _____________ while my mother _____________ to music.
我在看书,而我妈妈在听音乐。
(5)go、come、leave、arrive、start等动词的过去进行时表示
过去按计划即将发生的动作。
He said he was _________ tomorrow. 他说他明天来。
was reading
was listening
coming
The past continuous tense
grammar
5)用法
(6)过去进行时常和 always、forever等连用,表示过去频繁
发生的习惯性动作,此时的过去进行时带有一定的感情
色彩,表示说话人的主观感情,如赞扬、不满、厌烦等。
e.g. Li Yan was always __________ others.
李妍总是帮助他人。
Li Li ________ always changing her mind.
李丽总是改变主意。
helping
was
The past continuous tense
grammar
6)一般过去时、现在进行时和过去进行时的比较
一般过去时 现在进行时 过去进行时
概念 表示过去某个时间进行的动作或存在的状态。 表示即刻或现在正在发生或进行着的某一动作。 表示过去某一时刻或过去某一段时间正在进行的动作或存在的状态。
结构 was/were am/is/are + v-ing was/were + v-ing
动词的过去式
时间状语
yesterday... now, right now,
at once, at this time, at the moment, at present, these days等 then, at this time yesterday, at that time, at five yesterday morning及when, while引导的从句等
last+时间(year...)
时间点+ago
in+过去的年份/月份
just now, at the age of...
The past continuous tense
grammar
6)一般过去时、现在进行时和过去进行时的比较
一般过去时 现在进行时 过去进行时
句式结构 肯定句 主语+was/were+其他 主语+am/is/are
+现在分词+其他 主语+was/were
+现在分词+其他
主语+动词的过去式+其他
否定句 主语+wasn’t/weren’t+其他 主语+am/is/are
+not+现在分词+其他 主语+was/were
+not+现在分词+其他
主语+didn’t+动词原形+其他
一般
疑问句 Was/Were+主语+其他? Am/Is/Are+主语+现在分词+其他 Was/Were+主语+现在分词+其他
Did+主语+动词原形+其他?
特殊
疑问句 特殊疑问词+was/were+主语+其他? 特殊疑问词+am/is/are+主语+现在分词+其他 特殊疑问词+was/were+主语+现在分词+其他
特殊疑问词+did+主语+
动词原形+其他?
The past continuous tense
grammar
6)一般过去时、现在进行时和过去进行时的比较
一般过去时 现在进行时 过去进行时
用法 表示过去某一具体时间发生的动作或存在的状态。 表示此刻正在进行或发生的动作。 表示过去某一时刻正在进行的动作。
与always、usually、often、sometimes never once a week等
表示频度的副词或短语连用时,表示过去一段时间经常或反复
发生的动作以及过去的习惯动作。 表示现阶段正在进行的动作或持续的状态。 表示过去某一具体时间发生的动作或存在的状态。
The past continuous tense
grammar
6)一般过去时、现在进行时和过去进行时的比较
一般过去时 现在进行时 过去进行时
用法 表示过去连续发生的动作,往往没有时间状语,而是通过上下文语境来判断。 表示将要发生的动作:
①表示按计划或安排将要发生的动作,此时常与表示将来的时间状语连用,主语往往是人。
②表示马上就要发生的事情,进行时态用于非延续性动词,往往表示“马上就”,这类动词主要为come、go、 leave、 start、 begin、stop、arrive、return等。 go、come、 leave、 arrive、start等动词的过去进行时表示过去按计划即将发生的动作。
The past continuous tense
grammar
6)一般过去时、现在进行时和过去进行时的比较
一般过去时 现在进行时 过去进行时
用法 在时间状语从句或条件状语从句中,常用一般过去时代替过去将来时。 现在进行时与 always、 forever等词连用时往往表达说话者生气、赞扬、同情、不满、好奇等情绪,或主动描述某一心理。 过去进行时与always、forever等词连用时,往往表示过去频繁发生的习惯性动作,此时的过去进行时带有一定的感情色彩,表示说话人的主观感情,如赞扬、
不满、厌烦等。
当两个延续性动作同时进行,两者都可以使用过去进行时。
表示一个过去的动作发生时,另一个过去的动作正在进行。
Exercises
I. 用方框中所给单词的适当形式填空(有一项多余)。
1. She is a very __________ person and always supports her friends.
2. Don’t be so __________! You should check your homework twice.
3. This dictionary is very __________ for learning English.
4. He felt __________ when he heard the good news.
5. It was very ____________ of you to remember my birthday.
help use care hope thought joy
helpful
careless
useful
joyful
thoughtful
Exercises
II. 用括号内所给单词的适当形式填空。
1. I ______________ (watch) TV at 8 p.m. yesterday.
2. She was __________ (jog) in the park when it started to rain.
3. They _____________ (read) books while their mother ______________
(cook).
4. He _________________ (not listen) to the teacher at that time.
5. What __________ you __________ (do) when I called you?
was watching
jogging
were reading
was cooking
wasn’t listening
were doing
Exercises
III. 完成译句 (每空一词)。
1. 昨天下午三点,他们正在浴室里打扫卫生。
They __________ __________ __________ the bathroom at 3 p.m. yesterday.
2. 他昨天在公共场合吸烟是不对的。
It was wrong for him to smoke ________ __________.
3. 当老师进来时,学生们正在讨论那个粗心的错误。
When the teacher came in, the students __________ __________ about that __________ mistake.
4. 我们应该充分利用我们的青春时光。
We should _________ _________ ________ ________ of our youth
5. 昨天这个时候,我正在和朋友们慢跑,那是一段快乐的时光。
I __________ __________ with my friends at this time yesterday, and it was a __________ time.
were tidying up
in public
were discussing
careless
make the most of
was jogging
joyful
Summary
We learn:
1. Key words: cellphone, boss, careless, joy, comfortable, smoke, youth, might; bathroom, jog, postcard.
2. Grammar:
Suffixes -ful (表“有…的”) and -less (表“无…的”) to form adjectives.
Past continuous tense (was/were + doing) to describe actions in progress
in the past.
We can:
Use -less/-ful words to describe people and things.
Talk about past actions in progress using the past continuous tense.
Share personal stories and give suggestions with the learned grammar.
Homework
1. 基础层:完成关于 -less/-ful 和过去进行时的练习册作业。
2. 提高层:写一篇短文(约80词),描述“昨天某一时刻你和
家人正在做的事”,并至少使用3个 -less/-ful 单词。
3. 拓展层:制作一张“语法海报”,分别展示 -less/-ful 词缀和
过去进行时的用法,配上创意插图和例句。
Thank you!
Language points
Activity 1
1. He wishes he could be more helpful. 他希望他能够发挥更多作用。
wish v. “希望”,后可跟宾语从句,一般用于表达不能实现或没有把握实现的愿望。
e.g. He wished that he could buy a car. 他希望他能买一辆车。
常用结构:wish sb. + 名词:Wish you good luck!(祝你好运!)
wish sb. + to do sth.:I wish you to have a great trip.(我祝你旅途愉快。)
wish + (that) 从句(从句常用 would/could + 动词原形,表 “希望某事能发生”):I wish the rain would stop soon.(我希望雨快点停。)
链接:wish 还可作可数名词,意为“愿望;希望”。
e.g. She expressed a wish to be alone. 她表示希望一个人待着。
【即时练习】丑小鸭希望自己能像天鹅一样。
The ugly duckling wished he could _______ _______ the swans.
look like
Language points
Activity 1
2. Your boss doesn't allow any careless mistakes, so you'd better be very
careful in your work. 你的老板不允许犯任何粗心的错误,所以你最好在工作上非常细心。
had better do sth. 意为“最好做某事”。其否定形式为had better not do sth.,意为“最好不要做某事”。
e.g. You had better go there early. 你最好早点去那里。
You had better not smoke. 你最好不要吸烟。
【即时练习】You had better ________ up. There is enough time for you
to do the project.
A. hurry B. to hurry C. not to hurry D. not hurry
D
Suffix 后缀
grammar
后缀(-less,-ful)
英语中,在一个词的前面或者后面加上前缀或者后缀构成的新词叫派生词。需要注意的是,在词的前面加上前缀多改变词义,在词的后面加上后缀常改变词性。
例如,后缀“-less”和“-ful”常用来将名词转化为形容词,
不过它们所表达的含义和用法各有特点。
Suffix 后缀
grammar
后缀 意思及用法 例词
-less 加在名词或动词后构成形容词,意为“没有······的、无······的、不······的”这类否定含义。
由“-less”构成的形容词,常描述人或事物缺乏某种特质、属性或条件。 aimless, 形容词, 意为“无目标的; 无计划的”。
careless, 形容词, 意为“粗心的; 不仔细的”。
hopeless, 形容词, 意为“没有好转(或成功) 希望的;绝望的”。
fearless, 形容词, 意为“无畏的;大胆的”。
tireless, 形容词, 意为“不知疲倦的;精力充沛的”。
valueless, 形容词,意为“没价值的;不值钱的”。
Suffix 后缀
grammar
后缀 意思及用法 例词
-ful 加在名词之后构成形容词,意为“充满……的;具有……性质的;有……倾向的”等肯定、积极的含义。
由“-ful”构成的形容词,多用来描述人或事物具备某种特质或属性。 helpful, 形容词, 意为“有用的; 有帮助的”。
careful, 形容词, 意为“小心; 注意; 谨慎”。
beautiful, 形容词, 意为“美丽的;美好的”。
hopeful,形容词, 意为“抱有希望的; 满怀希望”。
joyful, 形容词, 意为“快乐的; 令人愉快的”。
painful, 形容词, 意为“令人疼痛的”。
Suffix 后缀
grammar
后缀 意思及用法 例词
-ful 加在名词之后构成形容词,意为“充满……的;具有……性质的;有……倾向的”等
肯定、积极的含义。
由“-ful”构成的形容词,多用来描述人或事物具备某种特质或属性。 shameful, 形容词,意为“可耻的;丢脸的”。
wishful, 形容词,意为“渴望的;怀着渴望的”。
有时也可加在动词之后,构成形容词, 表示
“容易……的”。 dreamful, 形容词,意为“梦多的, 常易梦见的。
forgetful, 形容词,意为“健忘的,
易忘的”。
Suffix 后缀
grammar
e.g.
The situation seemed __________, but they didn’t give up.
情况看似毫无希望,但他们我有放弃。
The fearless firefighter rushed into the burning building to save the people inside. 这位无畏的消防员冲进着火的大楼去救里面的人。
The teacher gave us some __________ advice on how to prepare for the exam. 老师给了我们一些关于如何准备考试的有用的建议。
Be __________ when you cross the road. 过马路时要小心。
hopeless
helpful
careful
Language points
Activity 2
3. Li Hong was joyful because she got a good grade in the exam.
李红很开心,因为她在考试中取得了好成绩。
get a good grade “取得好成绩”。grade在这里作名词,意为“成绩等级;评分等级”。
e.g. I hope you can get a good grade. 我希望你能取得好成绩。
链接:grade作名词时还可意为“年级”。
e.g. Tom is in Grade Eight. 汤姆在八年级。
拓展:grade还可作动词,意为“给······评分;给······分数;(按能力、质量、大小等)分级,分等,分类”。
e.g. I spent all the week grading the papers. 我整个周末都在评阅试卷。
【即时练习】老师叫我继续努力学习以取得好成绩。
The teacher told me to keep working hare to ___________________.
get a good grade
Language points
Activity 2
4. No one should smoke in public. 任何人都不应该在公众场合吸烟。
1)no one “没有人”,相当于nobody。
e.g. No one/Nobody likes staying at home alone.
没有人喜欢独自一人待在家里。
2)in public “公开地;在公共场合”:此时 public这里作名词。
e.g. It's impolite to talk with others loudly in public.
在公共场合和他人大声交谈不礼貌:
链接:public还可作形容词,意为“公开的;公共的”。
【即时练习】1)—Wow, so cool! Who taught you to play the guitar?
—________. I learned it by myself.
A.None B. No one C. Nothing
2) The boys were so hungry that they finished almost ________ on the plates.
And ________ of them said a word during the meal.
A. everything; none B. everything; no one C. anything; none
B
A
Activity 3
Read again and complete the tasks.
一、选择题
1. What does the text mainly talk about? ( )
A. The importance of teachers.
B. The experiences of youth.
C. Difficult subjects in school.
2. Which word describes the feeling of not having a clear
purpose? ( )
A. aimless B. helpful C. hurtful
B
A
Activity 3
Read again and complete the tasks.
二、填空题
1. Youth can be hard and __________, but you grow in every way.
2. Your friends can be __________ when you feel aimless.
三、判断题(正确写 T,错误写 F)
1. Some people may say hurtful things on purpose. ( )
2. Youth is a priceless experience. ( )
painful
helpful
F
T
Language points
Activity 3
5. Youth is an important period of time for growing up.
青春期是成长的一个重要阶段。
grow up “成长;长大;其后;随后”。
e.g. I want to be a teacher when I grow up. 我长大后想成为一名老师。
【即时练习】吉娜擅长数学,她长大后想成为一名工程师。
Gina is good at maths and she wants to be an engineer when
she _____________.
grows up
Language points
Activity 3
6. However, you will understand the true value of knowledge later on.
但是,你以后会理解知识真正的价值。
1)the value of “······的价值”
e.g. You don't know the value of time. 你不知道时间的价值:
2)later on “后来;以后;其后;随后”
e.g. I will get the book back later on. 我将过一会儿去把书取回来。
【即时练习】生命的价值并不取决于你是谁,而是你做什么。
_______________ life doesn’t depend on who you are, but what you do.
The value of
Language points
Activity 3
7. In a word, youth is a priceless experience.
总之,青春期是一段无价的经历。
In a word “简言之;一句话;总之”,可与in short互换。
e.g. In a word, you should be confident = In short, you should be confident.
简言之,你应该自信。
归纳:beyond words 难以言表 in other words 也就是说;换言之
word for word 一字不差地 keep one’s word 遵守承诺
have a word in one’s ear 和....说私话;与......密谈
e.g. We were bored beyond words. 我们厌倦得无以言表。
Don't have a word in your friend's eat. 不要和你的朋友说私话。
You should keep your word. 你应该遵守承诺。
【即时练习】In a word, we should protect the animals in danger. ( )
A. By the way B. In fact C. In short D. In my view
C
Language points
Activity 3
8. You should make the most of it. 你应该充分利用它。
make the most of “充分利用”,可与 make full use of 互换。
e.g. You had better make the most of the time.
= You had better make full use of the time. 你最好充分利用时间。
拓展:at (the) most 意为“至多;不超过”。
e.g. There were 50 people there, at the very most. 那儿最多有50个人。
【即时练习】
当有人对你说"YOLO"时,意味着你要利用好每一天并且好好享受
每一天。 (完成译句)
When someone says "YOLO",it means you should _________________ every day and enjoy it.
make the most of
The past continuous tense
grammar
4)常用时间状语
时间状语类型 典型结构
具体时间点 at+具体过去时间点 (at 8:00 last night)
when+一般过去时从句
时间段 from...to...yesterday
during the whole morning
时间状语从句 when+从句(表示主句动作在从句动作发生时正在进行)
while+从句(强调两个动作同时持续进行且从句谓语多为延续性动词)
模糊时间或
习惯性时间短语 at this/that time yesterday
just now刚刚
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