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(共31張PPT)
Unit 8 It must belong to Carla.
The Fifth Period
Section B(2a—Self Check )
1. Have a dictation of the words and expressions.
2. Review the main phrases and sentences learned
last class.
Revision
Fill in the blanks with linking words or phrases.
1. I get up early in the morning, _________ I can catch the
bus.
2. _________ Linda is very tired,she is going to bed.
I was angry _________ I played the piano so badly.
_________ it is late,I shall go home now.
3. She has a new bike,_________ I don’t have one.
because
so
As
Since
but
They tried their best.__________,they lost the game.
__________ the task was difficult,he managed to finish it
on time.
4. We must __________ do our homework __________ do it
well.
5. You can go to Shanghai by air __________ by train.
6. What were you doing __________ I came in
__________ my sister was writing a letter,my bother was
watching a football game.
However
not only but also
or
when
While
Though
Linking word or phrase Purpose of linking word or pharse
so expressing a difference
as, because,since giving a choice
but, however, though expressing a result
not only … but also expressing two things happening at the same time
or giving reasons
when, while adding information
Match each linking word or phrase with its purpose.
2a
Stonehenge — Can Anyone Explain
Why It Is There
Stonehenge, a rock circle, is not only one of Britain’s most famous historical places but also one of its greatest mysteries. Every year it receives more than 750,000 visitors. People like to go to this place especially in June as they want to see the sun rising on the longest day of the year.
Read the article below and underline the linking words and phrases. Do you think you have made correct matches in 2a
2b
For many years, historians believed Stonehenge was a temple where ancient leaders tried to communicate with the gods. However, historian Paul Stoker thinks this can’t be true because Stonehenge was built so many centuries ago. “The leaders arrived in England much later,” he points out.
Another popular idea is that Stonehenge might be a kind of calendar. The large stones were put together in a certain way. On midsummer’s
morning, the sun shines directly into the center of the stones. Other people believe the stones have a medical purpose. They think the stones can prevent illness and keep people healthy. “As you walk there, you can feel the energy from your feet move up your body,” said one visitor. No one is sure what Stonehenge was used for, but most agree that the position of the stones must be for a special purpose. Some think it might be a burial place or a place to honor ancestors. Others think it was built to celebrate a victory over an enemy.
Stonehenge was built slowly over a long period of time. Most historians believe it must be almost 5,000 years old. One of the greatest mysteries is how it was built because the stones are so big and heavy. In 2001, a group of English volunteers tried to build another Stonehenge, but they couldn’t. “We don’t really know who built Stonehenge,” says Paul Stoker. “And perhaps
we might never know, but we do know they must
have been hard-working — and great planners!”
1. express a difference 表達差異（教材第62頁）
(1)express 動詞，意為“表達，表示”，通常不接雙賓語。
e.g. 他對她表示了他的謝意。
【誤】He expressed her his thanks.
【正】He expressed his thanks to her.
express 可接反身代詞作賓語，表達自己的意思、思想、感情等。
e.g. Have I expressed myself clearly 我的意思講清楚了嗎？
He is still unable to express himself in English.他還不能用英語表達自己的意思。
Language Points
(2)difference 此處為可數名詞，意為“差別；不同之處”，常用結構為“the difference(s) between…and… (……和……之間的差別)”。
e.g. There are some differences between Lucy and Lily. 露西和莉莉之間有一些差別。
Can you tell me the differences between them 你能告訴我他們之間的差別嗎？
【拓展】difference 形容詞形式為 different，意為“不同的”
常用短語為 be different from… 意為“與……不同”。
2. People like to go to this place especially in June as they want to see the sun rising on the longest day of the year. 人們尤其喜歡在六月份去這個地方，因為他們想在一年中最長的一天看日出。（教材第
62頁）
as 此處為連詞，意為“由于，因為”，引導原因狀語從句。
e.g. As it was late, I went at once. 由于天晚了，我立即走了。
【拓展】辨析as, because與since
詞匯 含義 用法
as 由于，鑒于 主句與從句并重，從句說明原因，主句說明結果
because “因為”，語氣最強，回答由why 提出的問題 從句可放在主句前，也可以放在主句后
since 既然 側重主句，從句表示顯然的或已知的理由
e.g. As you don’t feel well, you had better stay at home. 鑒于你不舒服，你最好待在家里。
—Why were you late for school 你為什么上學遲到了？
—Because I missed the first bus. 因為我錯過了第一班車。
Since everybody is here, let’s begin the meeting. 既然大家都到了，我們開始開會吧。
3. For many years, historians believed Stonehenge was a temple where
ancient leaders tried to communicate with the gods. 許多年來，歷史
學家認為巨石陣是一座古代領導人試圖與神靈溝通的寺廟。（教材
第 62 頁）
where ancient leaders tried to communicate with the gods 是一個定語從句，修飾 a temple。若先行詞表示地點，那么定語從句的引導詞用 where。
e.g. I have come back to the farm where I worked before.我已經回到了我以前工作過的農場。
4. 辨析 point out, point at 與 point to（教材第62頁）
point out “指出”，out是副詞 給某人指出方向、要點或錯誤等 Will you please point out the man who saved the boy’s life 請你指出那個救男孩生命的人好嗎？
point at “指著”，at是介詞，著重于指的對象 指向離說話人較近的人或 事物 Don’t point at the words while you are reading.讀書時不要用手指著字。
point to “指向”，to也是介詞，著重于指的方向 指向離說話的人較遠的人或事物 He pointed to the house on the other side of the river and said, “That’s my home.”他指著河對岸的房子說：“那是我家。”
5. a medical purpose 醫療用途（教材第62頁）
medical 形容詞，意為“醫學的；醫療的”，其名詞形式為 medicine。
e.g. He is a medical student. 他是一名醫科學生。
purpose 名詞，意為“目的；意圖”，the purpose of …意為“……的目的”。on purpose 故意（地）；有意（地）。
e.g. The purpose of the meeting is to elect a new monitor. 這次會議的目的是選舉新班長。
6. They think the stones can prevent illness.他們認為石頭能預防疾病。（教材第62頁）
prevent 及物動詞，意為“阻止；阻撓”，常構成“prevent … from doing sth.”結構，意為“阻止……做某事”。
e.g. We must prevent the water from being polluted. 我們必須防止水被污染。
(1) stop … from doing sth.與 prevent … from doing sth. 意思相同，在主動語態中 from 可以省略，被動語態中不能省略。
e.g. What stopped him from coming here 是什么阻止他來這里？
(2) keep … from doing sth.意為“阻止……做某事”，無論在主動語態中還是在被動語態中 from 都不能省略。
e.g. The heavy rain kept us from coming on time. 大雨使我們沒有準時來。
Mysteries about Stonehenge What Stonehenge might have been used for …
Who built it
Read the article again and complete the chart.
2c
What was it used for
How was it built
It might have been used as a temple where ancient leaders tried to communicate with the gods.
It might have been used as a kind of calendar.
It might have been used for preventing illness and keeping people healthy.
It might have been used as a burial place or a place to honor ancestors.
It might have been used for celebrating a victory over an enemy.
1. Midsummer day is in June _________ a lot of people go to Stonehenge
during this month.
2. The sun shines straight into the center of Stonehenge ____________
the stones were put in a special position.
3. Some people think the rocks can ___________ stop people from
becoming ill ____________ keep them healthy.
4. We don’t know who built Stonehenge ___________ how it was built.
5. Historians think Stonehenge was built about 5,000 years ago;
____________, they are not sure.
and
as/because
not only
but also
or
however
Complete the sentences with the correct linking words.
2d
Can you think of any other mysteries, either in China or another part of the world, that are similar to Stonehenge What do you know about these mysteries What is mysterious about them Discuss them with your group.
2e
1.The Great Wall
First appear: more than 2,000 years ago
Mystery: How was it built
It was used for protecting the country in ancient times.
It was built by the poor.
2.Pyramid
First appear: about 4,700 years ago
Mystery: How was it built
It was used as a burial place.
It was built by the poor.
Read the beginning of a story. Who or what do you think took the lunch basket Discuss in a group and note your ideas in the box.
3a
Who or what took the lunch basket Why do you think so
wildlife on the island
Lucy heard a noise. Maybe some wild animals made it. They smelled the food and took the basket away.
people who live on the island
Jim thought nobody else was on the island. But maybe other people live here too. They might have taken the basket when the children weren’t there.
...
“There must be …on the island.”
“It must/ could be …”
“Maybe it’s a ...”
Use your ideas to finish the story. Use the following expressions to help you.
3b
思路點撥：
1.體裁：記敘文
2.人稱：第三人稱為主
3.時態：一般過去時為主
寫作步驟:
第一步：審題，弄清文章要表達的內容;
第二步：理清思路，用簡單的句子或短語列出要點;
第三步：運用恰當的關聯詞，使句子和段落銜接自然。
開篇點題 ...where their picnic basket had gone.
寫出猜測及原因 There must be someone...It might be...Look at the ...Maybe it’s a...
揭示真相 One of the monkeys was holding the lunch basket.
參考范文：
The children stood around, wondering where their picnic basket had gone.
“There must be someone living on this island,” said Lily. “And he took our picnic basket away.”
“It might be an alien. Somebody saw a UFO in the sky a few days ago,” said Jim.
“Look at the footprints in the sand. They look like some animal’s footprints. Maybe it’s a rabbit or a wolf,” said Ann.
The children walked around the island and looked for the basket. They didn’t stop walking until they went to a big tree. On the top of the tree, there stood some monkeys, jumping and laughing. One of the monkeys was holding the lunch basket in the air.
1 Fill in the blanks with must, might or can’t.
1. That bright light _________ be a UFO — there’s no such thing!
2. I’m still waiting for the bus, so I __________ be a bit late for the party.
3. That sweater ________ be Carla’s. She’s the only one who wears such
colorful clothes.
4. Tony ________ want to go to the concert. He likes music, but I’m not
sure if he likes rock music.
5. The person you saw at the supermarket __________ be Susan. I just
talked to her on the phone, and she’s at work right now.
can’t
might
must
might
can’t
Self Check
2 Look at the chart and write sentences for the things below.
1. DVD It can’t be Mike’s. He doesn’t like to watch movies.
2. bowl of ice-cream ___________________________________________
3. camera ____________________________________________________
4. cookbook __________________________________________________
5. tennis ball _________________________________________________
6. running shoes ______________________________________________
Name Likes Dislikes
Jessica take photos run
Todd play the piano eat sweet food
Mike play tennis watch movies
Annie read cook
It can’t be Todd’s. He doesn’t like to eat sweet food.
It must be Jessica’s. She likes taking photos.
It can’t be Annie’s. She doesn’t like to cook.
It must be Mike’s. He likes playing tennis.
They can’t be Jessica’s. She doesn’t like to run.
1. Recite the important phrases.
2. Write sentences using must，could/might，can’t and explaining reasons.
Homework

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