Unit 3 It must belong to Carla.Section B(1a-2e)学案 （含答案）

课题： Unit 3 It must belong to Carla.第3课时
学习目标：
1、重点单词
express（v.）表示；表达；circle（n.）圈圈（v.）圈出；leader（n.）领导；领袖；medical（adj.）医疗的；医学的；purpose(n.)目的；目标；prevent（v.）阻止；阻挠；energy(n.)精力，力量; position（n.）位置；地方；victory（n.）胜利；成功；enemy（n.）敌人；仇人；period（n.）一段时间；时期
2、重点词组
run after追赶；something strange一些奇怪的事；run for exercise跑步锻炼；wear a suit穿西服；catch a bus to work赶公汽上班；in the sky在天空中；a woman with a camera一位拿相机的妇女；express a result表示一种结果；give a choice提供一个选择；add information添加信息；the historical place历史遗迹；the greatest mystery最大的奥秘；communicate with与……交流；point out指出；in a certain way按某种方式；prevent illness防止疾病；honor ancestors祭奠祖先；celebrate a victory庆祝胜利；over a long period of time经历很长一段时间
3、重点句式
(1)—Why do you think the man is running 你认为那个人为什么在跑？
—He could be running for exercise.他可能正在跑步锻炼。
—No, he is wearing a suit. He might be running to catch a bus to work.不，他穿着西服，他可能正跑着赶公汽上班。
(2)It can’t be a helicopter. It’s too big. It must be a UFO.它不可能是直升机，它太大了，它一定是一个UFO。
(3)They must be making a movie.他们一定是在拍电影。
(4)However, historian Paul Stoker thinks this can’t be true because Stonehenge was built so many centuries ago.然而历史学家，保罗·斯托克认为这不可能是真的，因为巨石阵是在许多世纪以前建造的。
(5)Another popular idea is that Stonehenge might be a kind of calendar.另一种流行的说法是巨石阵可能是一种历法。
(6)Most agree that the position of the stones must be for a special purpose.大多数人都同意这些石头的位置一定是为了某种特殊的目的。
(7)Most historians believe it must be almost 5,000 years old.大多数历史学家相信它一定有将近五千年了。
(8)Perhaps we might never know, but we do know they must have been hardworking—and great planners!或许我们永远也不可能知道，但是我们却知道他们一定是勤劳并且伟大的规划者。
重点:理解并熟练运用本课时的单词和表示推测的情态动词。
难点: 能理解短文中的情态动词表示推测的句子。
导学设计：
1. He might be running to catch a bus to work.
他可能在跑着赶公共汽车去上班。
【归纳】“情态动词+be+动词-ing”是含有情态动词的现在进行时结构, 表示对正在进行或发生的动作进行推测或判断。例如: You must be dreaming. 你一定是在做梦。
【现学现练】
(1) 我哥哥可能在打篮球。
My brother _______________ ___ _______ basketball.
(2)他一定在做作业。
He _____ ___ _____his homework.
2. receive v. 接受；收到
Every year it receives more than 750, 000 visitors. 每年它都会迎来75万多游客。
He received his invitation to her birthday party. But he is going to refuse it. 他收到了去参加她生日聚会的邀请。但他打算拒绝。
She accepted his present. 她接受了他的礼物。
【归纳】 收到、接受与拒绝
receive 意为“ ”, 表达客观上收到, 但并不意味着同意接受
accept 意为“接受; 承认”, 表示主观上愿意“ ”
refuse 是accept的反义词。refuse to do sth. 意为“ ”
【现学现练】
(1) My brother　　　to move the heavy box, but I didn’t give up.
A. reminded B. refused C. agreed D. considered
(2) He　　　his good friend’s gift and he　　　it happily.
A. received; accepted B. accepted; refused C. received; refused D. accepted; accepted
(3) I refused ________(accept)his invitation.
3. prevent v. 阻止；阻挠
They think the stones can prevent illness and keep people healthy. 他们认为这些石头能够阻挡疾病，让人们保持健康。
We should prevent people (from)killing wild animals. 我们应该阻止人们滥杀野生动物。
(2)prevent. . . from doing sth. 意为“阻止……做某事”, 相当于keep/stop. . . from doing sth. 。
【现学现练】
(1)我们必须采取有效措施遏制交通事故的增长。
We must take effective measures to prevent traffic accidents______________.
(2)The bad weather prevented them from _______(walk)on.
(3)不要让他站在外面, 天太冷了。
Don’t _____ him ________outside. It’s too cold.
(4)没有任何事情能阻止我学习英语。
Nothing can _______ me _____________English.
4. And perhaps we might never know, but we do know they must have been hard-working—and great planners!
并且我们可能永远不会知道, 但是我们的确知道他们一定是很勤劳的, 并且是些伟大的设计者!
【归纳】(1)陈述句中“do+动词原形”这一结构用来对谓语动词进行强调, 意为“的确……”。当主语是第三人称单数时, 用“ ”, 在一般过去时中用“did+动词原形”。例如: He there yesterday. 昨天他的确去那儿了。
(2)“情态动词could/might/must/can’t +have+动词的过去分词”表示对已发生过的事情进行推测。例如:
They the work. 他们一定完成那项工作了。
【现学现练】
(1)昨天我的确告诉了她那个消息。
I ___ _ __ her the news yesterday.
(2)他学习的确很努力。
He ____ ___ __ hard.
(3)他们可能已经知道了那件事情了。
They about that.
(4)一定是有人捡到了你的钱包。
Somebody up your wallet.
知识巩固：
Ⅰ. 用所给词的适当形式填空
1. We should fight with our (enemy).
2. I think it’s one of the (exciting)movies I have ever seen.
3. This kind of animal is often used for (medicine)research.
4. Mao Zedong is a great (lead)in Chinese history.
5. Junk food can prevent people from (keep)healthy.
Ⅱ. 单项选择
1. Alice　　　a present, but she thought it’s too valuable to　　　it.
A. received; accept B. received; refuse
C. accepted; receive D. accepted; refuse
2. Can you tell me what this tool is used　　　
A. on　　　　B. to　　　　C. for　　　　D. from
3. Light and bright colors can make people　　　happier　　　more active.
A. either; or B. neither; nor　 C. not only; but also D. neither; or
4. 　　　Tom is very tired, he continues to work.
A. Because B. Though C. Unless D. If
5. We don’t know　　　.
A. when was the old temple built B. when the old temple was built
C. when did the old temple build D. when the old temple built
6. 　　　UFO is a flying thing that we don’t know its name.
A. The　　　　B. A　　　　　C. An　　　　　D. /
7. —Do you know the woman　　　a beautiful bag
—Yes, she is our new English teacher.
A. in B. at C. with D. of
8. He saw　　　on show. He couldn’t tell its name.
A. anything strange B. something strange
C. strange something D. strange anything
9. Li Lei　　　know the way to your house because he has been there twice.
A. must B. should C. can’t D. shouldn’t
10. —Why are you going to Beijing
—We’re going there　　　my uncle.
A. visiting B. visit C. visits D. to visit
III. 完成句子
1. 他害怕上课迟到。
He is afraid to ______ ______ ______ class.
2. 他们一定在讨论那次郊游。
They ______ ______ ______ about the trip.
3. 我跑得太慢追不上他。
I ran too slow to ______ ______ him.
4. 你认为他们为什么在和老师交谈
_________ do you think ______ ______ talking to the teacher
5. 我认为他可能为了考试而正在看书。
I think he ______ ______ ______ ______ tests.
参考答案：
导学设计：
1. 【现学现练】 (1) might/could/may be playing (2) must be doing
2. 【归纳】接受, 收；;接受；拒绝做某事【现学现练】(1)B (2)A(3) to accept
3. 【归纳】 (1)prevent作动词, 意为“预防; 阻止”, 其后接名词、代词或动名词作宾语。其名词形式为prevention。
【现学现练】 (1) from increasing(2)walking(3)keep; standing(4)prevent; from studying
4. 【归纳】(1) does+动词原形；did go(2)must have finished
【现学现练】 (1)did tell(2)does study(3)might/could have known(4)must have picked
知识巩固：
I. 1. enemies 2. most exciting 3. medical 4. leader 5. keeping
Ⅱ. 1-5 ACCBB 6-10 BCBAD
III. 1. be late for 2. must be talking 3. run after 4. Why; they are 5. could/might be reading for