Unit 8 It must belong to Carla.Section B 2a—Self Check 课件 (共31张PPT) 人教版九年级全册

(共31张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 表达差异（教材第62页）
(1)express 动词，意为“表达，表示”，通常不接双宾语。
e.g. 他对她表示了他的谢意。
【误】He expressed her his thanks.
【正】He expressed his thanks to her.
express 可接反身代词作宾语，表达自己的意思、思想、感情等。
e.g. Have I expressed myself clearly 我的意思讲清楚了吗？
He is still unable to express himself in English.他还不能用英语表达自己的意思。
Language Points
(2)difference 此处为可数名词，意为“差别；不同之处”，常用结构为“the difference(s) between…and… (……和……之间的差别)”。
e.g. There are some differences between Lucy and Lily. 露西和莉莉之间有一些差别。
Can you tell me the differences between them 你能告诉我他们之间的差别吗？
【拓展】difference 形容词形式为 different，意为“不同的”
常用短语为 be different from… 意为“与……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. 人们尤其喜欢在六月份去这个地方，因为他们想在一年中最长的一天看日出。（教材第
62页）
as 此处为连词，意为“由于，因为”，引导原因状语从句。
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与since
词汇 含义 用法
as 由于，鉴于 主句与从句并重，从句说明原因，主句说明结果
because “因为”，语气最强，回答由why 提出的问题 从句可放在主句前，也可以放在主句后
since 既然 侧重主句，从句表示显然的或已知的理由
e.g. As you don’t feel well, you had better stay at home. 鉴于你不舒服，你最好待在家里。
—Why were you late for school 你为什么上学迟到了？
—Because I missed the first bus. 因为我错过了第一班车。
Since everybody is here, let’s begin the meeting. 既然大家都到了，我们开始开会吧。
3. For many years, historians believed Stonehenge was a temple where
ancient leaders tried to communicate with the gods. 许多年来，历史
学家认为巨石阵是一座古代领导人试图与神灵沟通的寺庙。（教材
第 62 页）
where ancient leaders tried to communicate with the gods 是一个定语从句，修饰 a temple。若先行词表示地点，那么定语从句的引导词用 where。
e.g. I have come back to the farm where I worked before.我已经回到了我以前工作过的农场。
4. 辨析 point out, point at 与 point to（教材第62页）
point out “指出”，out是副词 给某人指出方向、要点或错误等 Will you please point out the man who saved the boy’s life 请你指出那个救男孩生命的人好吗？
point at “指着”，at是介词，着重于指的对象 指向离说话人较近的人或 事物 Don’t point at the words while you are reading.读书时不要用手指着字。
point to “指向”，to也是介词，着重于指的方向 指向离说话的人较远的人或事物 He pointed to the house on the other side of the river and said, “That’s my home.”他指着河对岸的房子说：“那是我家。”
5. a medical purpose 医疗用途（教材第62页）
medical 形容词，意为“医学的；医疗的”，其名词形式为 medicine。
e.g. He is a medical student. 他是一名医科学生。
purpose 名词，意为“目的；意图”，the purpose of …意为“……的目的”。on purpose 故意（地）；有意（地）。
e.g. The purpose of the meeting is to elect a new monitor. 这次会议的目的是选举新班长。
6. They think the stones can prevent illness.他们认为石头能预防疾病。（教材第62页）
prevent 及物动词，意为“阻止；阻挠”，常构成“prevent … from doing sth.”结构，意为“阻止……做某事”。
e.g. We must prevent the water from being polluted. 我们必须防止水被污染。
(1) stop … from doing sth.与 prevent … from doing sth. 意思相同，在主动语态中 from 可以省略，被动语态中不能省略。
e.g. What stopped him from coming here 是什么阻止他来这里？
(2) keep … from doing sth.意为“阻止……做某事”，无论在主动语态中还是在被动语态中 from 都不能省略。
e.g. The heavy rain kept us from coming on time. 大雨使我们没有准时来。
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
思路点拨：
1.体裁：记叙文
2.人称：第三人称为主
3.时态：一般过去时为主
写作步骤:
第一步：审题，弄清文章要表达的内容;
第二步：理清思路，用简单的句子或短语列出要点;
第三步：运用恰当的关联词，使句子和段落衔接自然。
开篇点题 ...where their picnic basket had gone.
写出猜测及原因 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.
参考范文：
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