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一、单项选择题
1.---Linda, don't let _____in. I am too busy to meet anyone this morning. --- OK, I ______.
A. nobody; will B. anybody; won't
C.somebody; don't D. anybody; don't
2. ---_______ father took part in the charity activity i n the neighborhood yesterday --- Peter's.
A. Whose B.What C.Which D.Who
3.--- Whose bike is it ---It ______ to me. It's hers.
A. isn't belonged B. wasn't belonged
C. didn't belong D. doesn't belong
4.Can you help me ______ the pen It's under the chair.
A. ask for B. look for C. pick up D. put up
5.Life is changeable. No one knows what _________ happen in the future.
A. should B. need C. have to D.might
--- Look! The man welcoming us at the school gate _____ be our headmaster.
---No, it _______ be him. He is having a meeting in t he office now.
A. must; can't B. must; mustn't
C. can't; mustn't D. mustn't; can
7.--- Is the man over there Adam
--- It _____ be him. He has gone to Hong Kong on vacation.
A. must B. can't C. mustn't D. might
8. --- Did you hear any strange _____ when the eart hquake happened
--- No, I was in my garden enjoying the beautiful ______ of my birds at that time.
A. noise; voice B. noise; sound
C. sound; noise D.sound: voice
9.--- Wow, another gift! What's in the box
--- I'm not sure. It ______ be a pair of sports shoes.
A. must B. may C. will D.can
10.This book ______ be Lucy's. Look! Her name is o n it.
A. can B. may C. must D. might
11.--- Mum, I've signed for a big box by Future Express. What's in it
--- I'm not sure. It ______ be a present from your brother.
A. must B. might C. should D. will
12.When we went into the park, we saw someone________ kung fu.
A. plays B. played C.playing D. to play
13. --- Food safety has become a social focus now.
---That's why laws are made to ______ crimes on food.
A.record B. prevent C.divide D.separate
14.--- _______ gloves are they
--- I'm not sure. Maybe they're Linda's.
A. Who B. Whom C.Whose D. Which
15.They are discussing whether wearing masks ca n prevent people______ catching a cold.
A. of B. for C.from D.off
16.1 won't throw these books away. For me, they are something _______.
A. useless B.valuable C.cheap D. dirty
17. David felt ______ in class because he stayed up late last night.
A. sleepy B. sleep C.asleep D. sleeping
18.---I hear you have to get up early every morning.
---Right. It's one of the _____ of my family.
A. plans B.jobs C.programs D.rules
19.The bad weather can't prevent them ______ to t heir favorite singer's concert.
A.go B. to go C. from going D. gone
20.The beautiful pictures belong to ________.
A.I B. me C. my D. mine
二、根据句意，用括号里所给单词的适当形式填空。
1.There is something __________ (value) in my bag. So I take it with me all the time.
2.Don't make any _________ (noisy) when you are in the library.
3._________ (wolf) are usually friendly and helpful to each other when living in groups.
4. I stayed up last night. So I feel _________ (sleep) in class today.
5.Some ____________ (policeman) went to the scene and searched for more details.
6.The old man gave away all his money to support_________(medicine) research.
7.You helped me a lot. I don't know how ___________ my gratitude.
8.The man in black looked ___________(easy) and refused to answer questions.
9.To our surprise, the _________(lead) of this country will visit our country.
10.There is something __________(create) fear in the neighborhood.
参考答案
一、1-5 BADCD 6-10 ABDBC 11-15 BCBCC 16-20 BADCB
二、1.valuable 2.noise 3.Wolves 4.sleepy5.policemen6.medical 7.to express 8.uneasy 9.leader 10.creating
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Unit 8 It must belong to Carla.
九年级
人教新目标版
单元知识梳理
一、重点短语
1. belong to 属于
2. have a picnic 野餐
3. run after 追逐;追赶
4. run for exercise跑步锻炼
5. wear a suit 穿着西装
6. catch a bus 赶公交车
7. at the same time同时;一起
8. pick up 捡起
9. be interviewed by 被采访
10. have no idea没有主意
11. strange noise 奇怪的声音
12. have fun doing玩的开心
13. feel uneasy 感到不安
14. be not sure不确定
15. make noise制造噪音
16. in the neighborhood在周围
17. go away 离开，走开
18. see the sun rising看日出
19. the longest day of the year一年中白昼最长的一天
20. ancient leaders古代首领
21.communicate with 交流
22. point out 指出
23. a kind of calendar一种日历
24. in a certain way以某种方式
25. on midsummer's morning在仲夏的早晨
26. shine directly into the center of the stone s直射巨石阵的中央
27. prevent illness 预防疾病
28. prevent sb. (from) doing sth.
29. for a special purpose为了一个特殊的目的
30. a burial place 一个墓地
31. a place to honor ancestors一个纪念祖先的地方
32. celebrate a victory over an enemy 庆祝打败敌人的胜利
33. over a long period of time在很长一段时间内
34. a group of ... 一群......
35.stop sb.(from) doing sth.阻止某人做某事
36. the purpose of ... ......的目的
二、重点句型
1.---Whose book is this ---It must be Mary's.
2.I think somebody must have picked it up.
3.---Whose volleyball is this
--- It must be Carla's. She loves volleyball.
4.It could be Mei's hair band. Or it might belong to Linda.
5.He could be running for exercise.
6.He might be running to catch a bus to work.
7.There must be something visiting the home s in our neighborhood,but what is it
8.The noise-maker is having too much fun creating fear in the neighborhood.
9.For many years,historians believed Stonehenge was a temple where ancient leaders tried to communicate with the gods.
10.As you walk there,you can feel the energy from your feet move up your body...
三、语言点解析
1. It must belong to Carla.
belong to属于;后接表示“人”的名词或人称代词的宾格形式。后接团体或组织时，意为“是…..的成员”。
The new car belongs to my mother. I can't use it without permission.
I belong to the tennis club.
belong to后不能接形容词性物主代词、名词性物主代词或名词所有格。
belong to没有进行时态和被动语态。
2. He was the only little kid at the picnic.
picnic n. 野餐;为可数名词，常用短语:
have a picnic野餐;
go for a picnic= go on a picnic去野餐。
I think the Forest Park is a good place to have a picnic.
What a fine day today! Let's go for a picnic.
3.I attended a concert yesterday so...
attend v.出席;参加;为正式用语，指参加婚礼、葬礼、典礼及去上课、上学、听报告等。
[易混辨析]attend，take part in,join或join in
attend 意为“出席:参加”，为正式用语，指参加婚礼、葬礼、典礼以及去上课、上学、听报告等
take part in 指参加某个会议或某项群众性的活动等，重在说明参加该项活动并在其中发挥一定的作用。
join 指加入某党派、团体、组织、俱乐部等并成为其中的一员。表示短暂性的动作，不与表示一段时间的状语连用。
join in 一般指参加竞赛、娱乐、游戏等活动，其后一般接名词或动词-ing形式。
Did you attend the Chinese Culture Festival in the Central Square
How many countries will take part in the World Cup
I joined the Party when I was 20. Can I join in the game
4.Do you have anything valuable in your schoolbag
valuable adj.贵重的;很有用的;宝贵的
valuable作形容词，由“value(n.价值) +-able(形容词后缀)”构成。
Thank you for your valuable advice.
Real friendship is more valuable than money.
5.I'll call then now to check if anybody has it.
(1) anybody 任何人，用于否定句，疑问句中。(注意复习不定代词的用法)
I will not tell anybody the secret.
(2)if此处译为“是否”，引导宾语从句
另if 还可以引导条件状语从句，译为“如果”，遵循主将从现的原则。
He will come if you invite him.
6.Strange Happenings in My Town
happening n. 事件;发生的事→happen v.发生
happening作名词，一般用复数形式。
Lying in the bed, he reviewed the day's happenings.
7.Every night we hear strange noises outside our window.
noise n.声音;噪音;既可作可数名词，又可作不可数名词，其形容词为noisy，意为“吵闹的;
嘈杂的”。make (a) noise 意为“制造噪声，发出声音”。
It's noisy outside. Let's go out and see who is making such (a) noise.
[易混辨析]
单词 词义 例句
noise 多指不悦耳的吵闹声、嘈杂声，可与make连用。 They were making too much noise.
sound 泛指能听见的自然界的各种声音，不带有任何感彩。 Does light travel faster than sound
voice 多指人说话、唱歌的声音，不可与make连用。 Many teenagers love the singer because she has a sweet voice.
8.One woman in the area saw something running away, but it was dark so she is not sure.
(1) see sb. doing sth.看见某人正在做某事(强调动作正在发生)
see sb. do sth.看见某人做某事(强调发生的整个过程)
(2) run away =escape v逃跑，逃脱拓展:
run off (从容器中溢出;流出) run out (of)用完，用光 run after 追赶
(3) sure adj.一定的，可靠的
be sure to do sth一定要，务必，一定会
be sure of/about doing sth确信，对…..有把握
be sure + that 从句确信，认为……一定会 make sure 弄清，查明，后面加that从句
9.My parents called the policemen, ...
policeman n.男警察; call the police 报警
policeman n 男警察(pl) policemen
policewoman 女警察(pl) policewomen
police station 警察局 police car警车
注: police n警察(集体名词，做主语时，谓语动词用复数形式)
The police are looking for the lost child.
The wounded policeman is now out of danger.
10.There must be something visiting the homes ...
There must be +主语+ doing sth.
该句型表示对现在情况的肯定推测，意为“一定有……正在做某事”。
There must be someone waiting for you at th e school gate.
There be +主语+doing sth.意为“有..…正在做某事”。
There are some children swimming in the swimming pool.
11.The noise-maker is having too much fun creating ...
noise-maker n.噪音制造者
noise-maker是一个复合名词，由“名词+名词”构成。这种复合构词法是英语中较为常见的一种构词方式，所构成的名词表达出原词语中的某种动宾关系，不仅可以用来指人，也可指物。在这类复合词中，两个名词中间有的用连字符“-”相连，有的没有，有的直接写成两个分开的词。常见的
有:
shopkeeper 店主 gatekeeper 看门人 bottle opener 开瓶器 taxi driver出租车司机
12.Whenever I try to read this book, I feel sleepy.
sleepy adj.困倦的;瞌睡的→sleep v.&n.睡;睡觉→asleep adj.睡着的
sleepy是形容词，意为“困倦的;瞌睡的”，可作定语或表语。
asleep也是形容词，意为“睡着的”，常用作表语或宾语补足语。
Jim didn't sleep well last night. He is tired an d feels sleepy now and falls asleep soon at hi s desk.
13.A UFO is landing.
land v.着陆;降落
land在此处为不及物动词，意为“着陆;降落”。反义词组为take off(起飞)。
Attention, please! The plane will land in ten minutes.
land还可作名词，意为“陆地”。
After 21 days at sea, we saw the land.
14.No, he's wearing a suit.
suit n. 西服;套装v.适合
(1) suit在此处为可数名词，意为“西服;套装”。
My teacher often wears a black suit.
(2) suit也可作动词，意为“适合”。
This tie suits you well.
suitable是suit的形容词形式，意为“合适的;适宜的”。be suitable for意为“适合……的”。
Wearing a coat is not very suitable for the hot weather.
15.expressing a difference
express v. 表示;表达
express作及物动词，后接名词或从句等作宾语。
常用搭配:express sth. to sb.向某人表达某事; express oneself表达自己的想法/感情。
In her letter, she expressed her thanks to me. Words can't express how pleased I am. She expressed herself very well.
(1) express还可作名词，意为“特快列车;快递服务”。
My book arrived by express.
(2) expression 是名词，意为“表示;表情”。
I can tell from her expression that something serious happened.
16.Stonehenge, a rock circle, ...
circle n. 圆圈v.圈出
(1) circle在此处作可数名词，意为“圆圈”。 The teacher drew a circle by hand.
(2) circle还可作及物动词，意为“圈出”。
Please circle the words that you don't understand.
circle作动词，还可意为“盘旋;环行”。
Seagulls circled around above his head.
17.Every year it receives more than 750,000 visitors.
receive v.接待;接受;收到
receive意为“收到”，指客观上收到(信件、礼物等)，不涉及收到者是否愿意接受。
accept意为“接受”，指收到者经过考虑而愿意接受，通常指主观上的接受，常与表示邀请或建议的词连用。
She received a gift, but she didn't accept.
18.For many years, historians believed Stonehenge was a temple where ancient leaders tried to communicate with the gods.
(1) history n 历史→ historian n历史学家→ historical 与历史有关的
(2) leader n.领导;领袖
leader为可数名词，lead是其动词形式，意为“引领”，其过去式和过去分词均为led。
The leader led us to a happier life.
(2) communicate with sb.和...….交流
communication n.
19.Other people believe the stones have a medical purpose.
(1) medical adj.医疗的;医学的 medical作形容词，通常在句中作定语。
The hospital always offers the best medical service for us.
medicine作名词，意为“药;医学”，通常为不可数名词。take some medicine“吃些药”。
Good medicine tastes bitter.
(2) purpose n. 目的;目标
purpose作名词，常用短语:the purpose of...“……的目的”;on purpose“有意地;故意(反义短语为by accident)“。
The purpose of the writer is to tell the reader s to value what they have now.
I'm sorry, sir. I didn't do that on purpose just now.
20. They think the stones can prevent illness and keep people healthy.
(1) prevent v. 阻止;阻挠
prevent作及物动词，prevent sb. (from) doing sth.“阻止某人做某事”，其中的from可以省略，但在被动语态中不能省略。
It is the job of the police to prevent crime.
The heavy rain may prevent us from going ou t tomorrow.
The plane was prevented from taking off on ti me because of the heavy snow.
(2) illness 病→ill 生病的
sick adj.“生病的”，既可放be(系动词)后作表语，也可放n.前作定语。
be sick of ...“讨厌;厌恶……” sick person = patient“病人”
ill adj.“生病的”，只能放be(系动词)后作表语: be ill in hospital生病住院
(3)keep → kept →kept v 留住;保持
keep +adj. 使保持......
keep healthy=stay healthy保持健康
keep quiet =be quiet 保持安静
keep sb. doing sth使某人一直做某事
keep sb. from doing sth阻止某人做某事
keep away from 远离......
21. As you walk there, you can feel the energy from your feet climb up your body, ...
energy n. 力量;精力→energetic adj.精力充沛的
(1) energy 可作不可数名词，意为“活力;精力”，强调含有能力或热情。
Our new teacher is full of energy.
(2) energy也可作可数名词，意为“精力;力量”，常用复数形式，强调付出的脑力或体力。
She put all her energies into her work.
22.... but most agree that the position of the stones must be for a special purpose.
position n.位置;地方
Can you find our position on the map
If you stand in a higher position, you can see further.
23.Others think it was built to celebrate a victory over an enemy.
(1) victory n.胜利;成功
victory意为“胜利;成功”，既可作可数名词，也可作不可数名词。常与介词over或against连用。
win a victory 获得胜利。
To keep hope is the best weapon for victory. We won a victory against their team at last.
(2) enemy n. 敌人;仇人
enemy 为可数名词，其复数形式为enemies。
Actually, your biggest enemy is yourself.
24.Stonehenge was built slowly over a long period of time.
period n.一段时间;时期
period为可数名词，a period of time一段时间。
This story happened during the period of the Civil War.
period作名词，还可意为“学时，课;句号”。 We have six periods of Science a week.
四、语法
情态动词表示推测
情态动词表示推测的意义和用法
句式 情态动词 含义 用法
肯定句 must 一定 表示有把握的肯定推测。
may/ might/ could 也许;可能 表示没有把握的肯定推测。
否定句 can't/ couldn't 不可能 表示有把握的否定推测。
may not/ might not 可能不 表示不太有把握的肯定推测。
疑问句 can/ could 可能 表示推测。
He must be very happy when he heard the news.
He may be in his office but I'm not sure.
That man can't be your teacher. He's much taller.
It may not be right, but that's what I think.
- Can the news be true - No, it can't be true.
(1)情态动词表示推测时，无时态区别，只有语气差别。
表示推测的情态动词的语气强弱顺序如下(由强到弱):
must > can > could> may > might
(2) 含有must的句子(must表推测)变为否定句时，要用can't。
He must be at home.→ He can't be at home.
[拓展]不同形式的情态动词表示不同的含义
(1)情态动词+动词原形:表示对现在事情的推测。
This book must be Jim's because his name is on it.
(2)情态动词+be+动词-ing:表示对正在发生的事情的推测。
My mother might be cooking in the kitchen.
(3)情态动词+have +动词的过去分词:表示对过去情况的推测。
The ground is wet. It must have rained last night.
注意“情态动词”的另外用法:
(1)表“能力”:can/could 会
I can swim now, but I couldn't do it a month a go.
(2) 表“请求、许可”:can / could / may 可以
-Can/ Could I watch TV -Yes, you can / of course.
(3) 表“命令”: must/ have to 必须
--Must I go with you --Yes, you must. --No, you needn't / don't have to.
(4) 表“不准，不可以，禁止，千万别”:mustn't
You mustn't light fires.
五、话题写作
本单元话题为“神秘事物”，围绕这一话题对我们生活中出现的不确定的事情进行推理判断。要求我们恰当使用情态动词客观的对提供的材料进行分析，以推测某件物品可能是某人的或某人正在做什么。写作此类话题作文的常用表达有:
(1) sth. must /can't/might/could be...
(2) sb. must/can't/might/could be doing...
[典型例题]
你在上学的路上捡到了一件T-shirt，它是你校某位同学的。请根据以下提示做出一个合理的推断，并把推断的经过和结果写出来。可适当发挥，词数80词左右。提示:
1.Mary和Sally的T恤衫都丢了
2.T恤衫上有长头发
3.T恤衫口袋里有一张信用卡和一张刘德华的照片
[优秀范文]
Oh, look! There is a T-shirt here. It's a school T-shirt. The owner must be a student.
Mary and sally lost their T-shirt. Could it be Mary's or Sally's There is long hair on the T-shirt. But both of them have long hair. There is a photo of Liu Dehua in the pocket. Sally likes Liu Dehua very much, but Mary's favorite star i s Sun Yanzi. So, it belongs to sally. There is credit card too. Then, it must be sally's school T -shirt because she is the only person who has a credit card in our school.
Thanks!
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人教版九年级Unit 8 It must belong to Carla. 单元知识梳理
一、重点短语
1. belong to 属于
2. have a picnic 野餐
3. run after 追逐;追赶
4. run for exercise跑步锻炼
5. wear a suit 穿着西装
6. catch a bus 赶公交车
7. at the same time同时;一起
8. pick up 捡起
9. be interviewed by 被采访
10. have no idea没有主意
11. strange noise 奇怪的声音
12. have fun doing玩的开心
13. feel uneasy 感到不安
14. be not sure不确定
15. make noise制造噪音
16. in the neighborhood在周围
17. go away 离开，走开
18. see the sun rising看日出
19. the longest day of the year一年中白昼最长的一天
20. ancient leaders古代首领
21.communicate with 交流
22. point out 指出
23. a kind of calendar一种日历
24. in a certain way以某种方式
25. on midsummer's morning在仲夏的早晨
26. shine directly into the center of the stone s直射巨石阵的中央
27. prevent illness 预防疾病
28. prevent sb. (from) doing sth.
29. for a special purpose为了一个特殊的目的
30. a burial place 一个墓地
31. a place to honor ancestors一个纪念祖先的地方
32. celebrate a victory over an enemy 庆祝打败敌人的胜利
33. over a long period of time在很长一段时间内
34. a group of ... 一群......
35.stop sb.(from) doing sth.阻止某人做某事
36. the purpose of ... ......的目的
二、重点句型
1.---Whose book is this ---It must be Mary's.
2.I think somebody must have picked it up.
3.---Whose volleyball is this
--- It must be Carla's. She loves volleyball.
4.It could be Mei's hair band. Or it might belong to Linda.
5.He could be running for exercise.
6.He might be running to catch a bus to work.
7.There must be something visiting the home s in our neighborhood,but what is it
8.The noise-maker is having too much fun creating fear in the neighborhood.
9.For many years,historians believed Stonehenge was a temple where ancient leaders tried to communicate with the gods.
10.As you walk there,you can feel the energy from your feet move up your body...
三、语言点解析
1. It must belong to Carla.
belong to属于;后接表示“人”的名词或人称代词的宾格形式。后接团体或组织时，意为“是…..的成员”。
The new car belongs to my mother. I can't use it without permission.
I belong to the tennis club.
belong to后不能接形容词性物主代词、名词性物主代词或名词所有格。
belong to没有进行时态和被动语态。
2. He was the only little kid at the picnic.
picnic n. 野餐;为可数名词，常用短语:
have a picnic野餐;
go for a picnic= go on a picnic去野餐。
I think the Forest Park is a good place to have a picnic.
What a fine day today! Let's go for a picnic.
3.I attended a concert yesterday so...
attend v.出席;参加;为正式用语，指参加婚礼、葬礼、典礼及去上课、上学、听报告等。
[易混辨析]attend，take part in,join或join in
attend 意为“出席:参加”，为正式用语，指参加婚礼、葬礼、典礼以及去上课、上学、听报告等
take part in 指参加某个会议或某项群众性的活动等，重在说明参加该项活动并在其中发挥一定的作用。
join 指加入某党派、团体、组织、俱乐部等并成为其中的一员。表示短暂性的动作，不与表示一段时间的状语连用。
join in 一般指参加竞赛、娱乐、游戏等活动，其后一般接名词或动词-ing形式。
Did you attend the Chinese Culture Festival in the Central Square
How many countries will take part in the World Cup
I joined the Party when I was 20. Can I join in the game
4.Do you have anything valuable in your schoolbag
valuable adj.贵重的;很有用的;宝贵的
valuable作形容词，由“value(n.价值) +-able(形容词后缀)”构成。
Thank you for your valuable advice.
Real friendship is more valuable than money.
5.I'll call then now to check if anybody has it.
(1) anybody 任何人，用于否定句，疑问句中。(注意复习不定代词的用法)
I will not tell anybody the secret.
(2)if此处译为“是否”，引导宾语从句
另if 还可以引导条件状语从句，译为“如果”，遵循主将从现的原则。
He will come if you invite him.
6.Strange Happenings in My Town
happening n. 事件;发生的事→happen v.发生
happening作名词，一般用复数形式。
Lying in the bed, he reviewed the day's happenings.
7.Every night we hear strange noises outside our window.
noise n.声音;噪音;既可作可数名词，又可作不可数名词，其形容词为noisy，意为“吵闹的;
嘈杂的”。make (a) noise 意为“制造噪声，发出声音”。
It's noisy outside. Let's go out and see who is making such (a) noise.
[易混辨析]
单词 词义 例句
noise 多指不悦耳的吵闹声、嘈杂声，可与make连用。 They were making too much noise.
sound 泛指能听见的自然界的各种声音，不带有任何感彩。 Does light travel faster than sound
voice 多指人说话、唱歌的声音，不可与make连用。 Many teenagers love the singer because she has a sweet voice.
8.One woman in the area saw something running away, but it was dark so she is not sure.
(1) see sb. doing sth.看见某人正在做某事(强调动作正在发生)
see sb. do sth.看见某人做某事(强调发生的整个过程)
(2) run away =escape v逃跑，逃脱拓展:
run off (从容器中溢出;流出) run out (of)用完，用光 run after 追赶
(3) sure adj.一定的，可靠的
be sure to do sth一定要，务必，一定会
be sure of/about doing sth确信，对…..有把握
be sure + that 从句确信，认为……一定会 make sure 弄清，查明，后面加that从句
9.My parents called the policemen, ...
policeman n.男警察; call the police 报警
policeman n 男警察(pl) policemen
policewoman 女警察(pl) policewomen
police station 警察局 police car警车
注: police n警察(集体名词，做主语时，谓语动词用复数形式)
The police are looking for the lost child.
The wounded policeman is now out of danger.
10.There must be something visiting the homes ...
There must be +主语+ doing sth.
该句型表示对现在情况的肯定推测，意为“一定有……正在做某事”。
There must be someone waiting for you at th e school gate.
There be +主语+doing sth.意为“有..…正在做某事”。
There are some children swimming in the swimming pool.
11.The noise-maker is having too much fun creating ...
noise-maker n.噪音制造者
noise-maker是一个复合名词，由“名词+名词”构成。这种复合构词法是英语中较为常见的一种构词方式，所构成的名词表达出原词语中的某种动宾关系，不仅可以用来指人，也可指物。在这类复合词中，两个名词中间有的用连字符“-”相连，有的没有，有的直接写成两个分开的词。常见的
有:
shopkeeper 店主 gatekeeper 看门人 bottle opener 开瓶器 taxi driver出租车司机
12.Whenever I try to read this book, I feel sleepy.
sleepy adj.困倦的;瞌睡的→sleep v.&n.睡;睡觉→asleep adj.睡着的
sleepy是形容词，意为“困倦的;瞌睡的”，可作定语或表语。
asleep也是形容词，意为“睡着的”，常用作表语或宾语补足语。
Jim didn't sleep well last night. He is tired an d feels sleepy now and falls asleep soon at hi s desk.
13.A UFO is landing.
land v.着陆;降落
land在此处为不及物动词，意为“着陆;降落”。反义词组为take off(起飞)。
Attention, please! The plane will land in ten minutes.
land还可作名词，意为“陆地”。
After 21 days at sea, we saw the land.
14.No, he's wearing a suit.
suit n. 西服;套装v.适合
(1) suit在此处为可数名词，意为“西服;套装”。
My teacher often wears a black suit.
suit也可作动词，意为“适合”。
This tie suits you well.
suitable是suit的形容词形式，意为“合适的;适宜的”。be suitable for意为“适合……的”。
Wearing a coat is not very suitable for the hot weather.
15.expressing a difference
express v. 表示;表达
express作及物动词，后接名词或从句等作宾语。
常用搭配:express sth. to sb.向某人表达某事; express oneself表达自己的想法/感情。
In her letter, she expressed her thanks to me. Words can't express how pleased I am. She expressed herself very well.
(1) express还可作名词，意为“特快列车;快递服务”。
My book arrived by express.
(2) expression 是名词，意为“表示;表情”。
I can tell from her expression that something serious happened.
16.Stonehenge, a rock circle, ...
circle n. 圆圈v.圈出
(1) circle在此处作可数名词，意为“圆圈”。 The teacher drew a circle by hand.
(2) circle还可作及物动词，意为“圈出”。
Please circle the words that you don't understand.
circle作动词，还可意为“盘旋;环行”。
Seagulls circled around above his head.
17.Every year it receives more than 750,000 visitors.
receive v.接待;接受;收到
receive意为“收到”，指客观上收到(信件、礼物等)，不涉及收到者是否愿意接受。
accept意为“接受”，指收到者经过考虑而愿意接受，通常指主观上的接受，常与表示邀请或建议的词连用。
She received a gift, but she didn't accept.
18.For many years, historians believed Stonehenge was a temple where ancient leaders tried to communicate with the gods.
(1) history n 历史→ historian n历史学家→ historical 与历史有关的
(2) leader n.领导;领袖
leader为可数名词，lead是其动词形式，意为“引领”，其过去式和过去分词均为led。
The leader led us to a happier life.
communicate with sb.和...….交流
communication n.
19.Other people believe the stones have a medical purpose.
(1) medical adj.医疗的;医学的 medical作形容词，通常在句中作定语。
The hospital always offers the best medical service for us.
medicine作名词，意为“药;医学”，通常为不可数名词。take some medicine“吃些药”。
Good medicine tastes bitter.
(2) purpose n. 目的;目标
purpose作名词，常用短语:the purpose of...“……的目的”;on purpose“有意地;故意(反义短语为by accident)“。
The purpose of the writer is to tell the reader s to value what they have now.
I'm sorry, sir. I didn't do that on purpose just now.
They think the stones can prevent illness and keep people healthy.
(1) prevent v. 阻止;阻挠
prevent作及物动词，prevent sb. (from) doing sth.“阻止某人做某事”，其中的from可以省略，但在被动语态中不能省略。
It is the job of the police to prevent crime.
The heavy rain may prevent us from going ou t tomorrow.
The plane was prevented from taking off on ti me because of the heavy snow.
(2) illness 病→ill 生病的
sick adj.“生病的”，既可放be(系动词)后作表语，也可放n.前作定语。
be sick of ...“讨厌;厌恶……” sick person = patient“病人”
ill adj.“生病的”，只能放be(系动词)后作表语: be ill in hospital生病住院
(3)keep → kept →kept v 留住;保持
keep +adj. 使保持......
keep healthy=stay healthy保持健康
keep quiet =be quiet 保持安静
keep sb. doing sth使某人一直做某事
keep sb. from doing sth阻止某人做某事
keep away from 远离......
As you walk there, you can feel the energy from your feet climb up your body, ...
energy n. 力量;精力→energetic adj.精力充沛的
(1) energy 可作不可数名词，意为“活力;精力”，强调含有能力或热情。
Our new teacher is full of energy.
energy也可作可数名词，意为“精力;力量”，常用复数形式，强调付出的脑力或体力。
She put all her energies into her work.
22.... but most agree that the position of the stones must be for a special purpose.
position n.位置;地方
Can you find our position on the map
If you stand in a higher position, you can see further.
23.Others think it was built to celebrate a victory over an enemy.
(1) victory n.胜利;成功
victory意为“胜利;成功”，既可作可数名词，也可作不可数名词。常与介词over或against连用。
win a victory 获得胜利。
To keep hope is the best weapon for victory. We won a victory against their team at last.
enemy n. 敌人;仇人
enemy 为可数名词，其复数形式为enemies。
Actually, your biggest enemy is yourself.
24.Stonehenge was built slowly over a long period of time.
period n.一段时间;时期
period为可数名词，a period of time一段时间。
This story happened during the period of the Civil War.
period作名词，还可意为“学时，课;句号”。 We have six periods of Science a week.
语法
情态动词表示推测
情态动词表示推测的意义和用法
句式 情态动词 含义 用法
肯定句 must 一定 表示有把握的肯定推测。
may/ might/ could 也许;可能 表示没有把握的肯定推测。
否定句 can't/ couldn't 不可能 表示有把握的否定推测。
may not/ might not 可能不 表示不太有把握的肯定推测。
疑问句 can/ could 可能 表示推测。
He must be very happy when he heard the news.
He may be in his office but I'm not sure.
That man can't be your teacher. He's much taller.
It may not be right, but that's what I think.
- Can the news be true - No, it can't be true.
(1)情态动词表示推测时，无时态区别，只有语气差别。
表示推测的情态动词的语气强弱顺序如下(由强到弱):
must > can > could> may > might
(2) 含有must的句子(must表推测)变为否定句时，要用can't。
He must be at home.→ He can't be at home.
[拓展]不同形式的情态动词表示不同的含义
(1)情态动词+动词原形:表示对现在事情的推测。
This book must be Jim's because his name is on it.
(2)情态动词+be+动词-ing:表示对正在发生的事情的推测。
My mother might be cooking in the kitchen.
(3)情态动词+have +动词的过去分词:表示对过去情况的推测。
The ground is wet. It must have rained last night.
注意“情态动词”的另外用法:
(1)表“能力”:can/could 会
I can swim now, but I couldn't do it a month a go.
表“请求、许可”:can / could / may 可以
-Can/ Could I watch TV -Yes, you can / of course.
表“命令”: must/ have to 必须
--Must I go with you --Yes, you must. --No, you needn't / don't have to.
表“不准，不可以，禁止，千万别”:mustn't
You mustn't light fires.
五、话题写作
本单元话题为“神秘事物”，围绕这一话题对我们生活中出现的不确定的事情进行推理判断。要求我们恰当使用情态动词客观的对提供的材料进行分析，以推测某件物品可能是某人的或某人正在做什么。写作此类话题作文的常用表达有:
(1) sth. must /can't/might/could be...
(2) sb. must/can't/might/could be doing...
[典型例题]
你在上学的路上捡到了一件T-shirt，它是你校某位同学的。请根据以下提示做出一个合理的推断，并把推断的经过和结果写出来。可适当发挥，词数80词左右。提示:
1.Mary和Sally的T恤衫都丢了
2.T恤衫上有长头发
3.T恤衫口袋里有一张信用卡和一张刘德华的照片
[优秀范文]
Oh, look! There is a T-shirt here. It's a school T-shirt. The owner must be a student.
Mary and sally lost their T-shirt. Could it be Mary's or Sally's There is long hair on the T-shirt. But both of them have long hair. There is a photo of Liu Dehua in the pocket. Sally likes Liu Dehua very much, but Mary's favorite star i s Sun Yanzi. So, it belongs to sally. There is credit card too. Then, it must be sally's school T -shirt because she is the only person who has a credit card in our school.
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