内容正文:
Unit 3 Great Ideas
Big Question: What is invention in your eyes?
In this unit, you will learn to:
introduce the great inventions in the world.
be creative in your daily life.
use the text clues to understand the author's viewpoint.
use the reading strategy of rereading.
design your dream invention.
Lesson 5 Grammar in Use
The suffix-en
Learning Objective
By the end of this lesson, students will be able to:
identify the suffix -en and its meaning by observing pictures and reading sentences;
deepen their understanding of -en words through word-formation and synonym-substitution activities;
understand the rules and pragmatic functions of the passive voice through dialogue;
use the passive voice correctly in context by completing a form and a cloze passage.
Review
block printing
Q: What is the board made of?
It is made of __________.
wood
It is a __________ board.
wooden
Q: What is the hat made of?
It is made of __________.
wool
It is a __________ hat.
woolen
The carver flattened the wooden board.
He sharpened the knife.
He deepened the lines.
He darkened the ink.
Q: Are these words the same as "wooden"?
No, they are all verbs.
flat (adj.) + en
sharp (adj.) + en
deep (adj.) + en
dark (adj.) + en
made the wooden board flat
made the knife sharp
made the lines deep
made the ink dark
Activity 1
Look at the pictures and read the sentences. Pay attention to the words in bold.
In the old days, stone was difficult to transport, so many wooden houses were built.
Television can enrich people's lives and broaden their minds. It was one of the greatest inventions in the 20th century.
Around 2000 BCE, woolen clothing appeared in China.
Activity 2
Make new words with the suffix -en and fill in the blanks with their correct forms.
wood
short
wide
dark
en
+
→
1. At first, Chinese people used ________ boards to print books.
2. The invention of movable type printing greatly improved
printing quality and ________ printing time as well.
3. If you want to invent something, you need to ________ your
knowledge.
4. When the sky began to ________, sailors had to depend on
stars to find the right direction.
wooden
shorten
widen
darken
Activity 3
Read the sentences and replace the parts in bold with proper words.
I like this invention. In the past, pencils were sharpened by hand, but now pencils can be made sharp by using a small tool.
Pencils can be ____________________ by using a small tool.
I like the invention of the light bulb. It makes the world around us bright at night.
The light bulb is an important invention. It _______________________ the world around us at night.
sharpened
brightens
Exercise
1. Rereading can __________ (deep) our understanding of the passage.
2. Hearing the good news, excitement __________ (quick) my heartbeat.
3. Too much stress __________ (weak) her body.
4. Warm water __________ (soft) the piece of dry cloth.
deepen
quickens
weakens
softens
Passive voice (Ⅰ)
Activity 1
Pair work. Read the conversation. Pay attention to the passive voice of verbs.
Hi, Kangkang, why do you look so tired?
I was woken up by my mom too early this morning.
You stayed up late last night, right?
Yes, I did. I made a model rocket last night. It was made for the model rocket show this Sunday.
醒来
Passive voice
+
eats
+ .
is eaten
含义 主语是动作的 __________
结构 be done
承受者
是谁做的不知道,告诉我也没必要
.
Passive voice
时态 主动语态 do 被动语态 be done
一般现在 clean am / is / are cleaned
一般过去 cleaned was / were cleaned
一般将来 will clean will be cleaned
情态动词 should clean should be cleaned
前面有be后ed
Activity 2
Complete the table and learn how to use the passive voice.
Simple Present Passive Simple Past Passive
Active Passive Active Passive
do am/is/are done did was/were done
1. The passport __________________
(discover) in the Lost and Found.
2. Many art works _______________
(create) by young people today. 1. The airplane _____________ (invent) by the Wright brothers in 1903.
2. Clear instructions _______________
(prepare) to help the workers use the
new machine.
is discovered
are created
was invented
were prepared
It is long, thin and quite sharp.
When we were in primary school, we were not allowed to use it.
But it is used by as almost every day.
It is used to write.
There is a small ball at the top of it.
ballpoint pen
Guessing game
What is in the box ?
It is small, cheap and very useful.
It is made of iron, or maybe wood.
It can be seen easily in your family.
It can be found on your balcony.
It is often used by your mom.
It is used to hang socks.
clothespin
Guessing game
What is in the box ?
It is short, fat but not very heavy.
It is made of iron, or glass.
Many things can be kept in it.
Its name is also used as a verb.
It is always used to keep food or drink.
can
Guessing game
What is in the box ?
① sth. be used to do 被用来做某事
② sb. be / get used to doing 习惯做某事
③ sb. used to do 过去常常做某事
— Peter has changed a lot, hasn't he ?
— Yes. He used to _____ the guitar, but he gets used to _____ soccer.
A. plays; play B. play; playing C. play; play D. playing; playing
* use
My beautiful dress is _______________ silk.
and my wine is _______________ grapes.
A. made of
B. made from
+ 看得出材料
+ 看不出材料
made of
made from
C. made in
+ 产地
* make
Post-it Notes _______________ (develop) by Dr. Spencer
Silver and Art Fry. In 1968, Spencer invented a special type of glue by accident. This glue could allow things to stick
lightly and to be pulled off easily. However, he did not know how to put it to use. In 1974, Art Fry found that the glue could ____________ (use) to keep the notes from falling and then created Post-it Notes. In 1977, Post-it Notes first appeared
at the market and they __________ (become) a great success in Boise, Idaho. Now, Post-it Notes ____________ (sell) all over the world.
Activity 3
Complete the text with the correct form of the given words.
were developed
be used
are sold
became
Language points
Post-it Notes were developed by Dr. Spencer Silver and Art Fry. In 1968, Spencer invented a special type of glue by accident. This glue could allow things to stick lightly and to be pulled off easily. However, he did not know how to put it to use. In 1974, Art Fry found that the glue could be used to keep the notes from falling and then created Post-it Notes. In 1977, Post-it Notes first appeared at the market and they became a great success in Boise, Idaho. Now, Post-it Notes are sold all over the world.
偶然
把...投入使用
keep ... from doing 阻止...做某事
上市
大获成功
Exercise
Write sentences in the passive voice.
water
______________________________________________
lock
______________________________________________
The flowers are watered by the girl.
The door is locked by her.
The bicycle was stolen by a thief last night.
hang; yesterday
_________________________________________
The lantern was hung by him yesterday.
steal; last night
_________________________________________
Summary:
We learn:
how to use the suffix ‘-en’ to form verbs and adjectives.
the structure and usage of the simple present and simple past passive voice.
We can:
use the suffix ‘-en’ correctly in sentences.
change active sentences into passive sentences.
use passive voice to describe inventions and historical events.
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