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Module 3 Unit 6 Electricity -Reading I教学设计
课题 Electricity 单元 Unit 6 学科 英语 年级 七年级
学习目标与核心素养 Knowledge objectives: 理解并能够正确使用词汇electricity, anyone, reply, foolish, wire, connect, moment, battery, in a way, (be) connected to, a moment later, power stationSkill objectives: 用正确的语音语调朗读课文3.Emotional objectives: 初步了解电的有关信息，培养节约用电的意识。
重点 理解并能够正确使用词汇electricity, anyone, reply, foolish, wire, connect, moment, battery, in a way, (be) connected to, a moment later, power station
难点 用正确的语音语调朗读课文
教学过程
教学环节 教师活动 学生活动 设计意图
导入新课 ①教师出示图片，提问T：What makes them possible （Electricity.）②引导学生利用课前预习汇报结果T：What needs electricity to work 观察并结合实际说出发现汇报预习结果 联系生活热点及实际，引入话题培养学生通过多种途径获取信息和处理信息的能力
讲授新课 Step 1 Step 1 Learn some vocabulary1.通过图片理解词义electricity, wire, connect, cable, battery, foolish, moment, power station2.运用词义翻译句子3.将单词与词义连线4.单词拼写，完成句子1. It’s dangerous to join an electric ________ (电线) to a water pipe. 2. She __________ (连接) up the cellphone and the computer. 3. The is enough __________ (电) in my new house.4. I needed a new ________ (电池) for the robot. 5. We ran a _______ (电缆) from the lights to the stage.Step 2 Pre-reading1. A What do you know about … There are different ways of producing electricity. Write the correct words in the blanks.2. T: What else can produce electricity 引导学生利用课前预习汇报结果3. 引导学生利用图片和标题预测Look at the photos and the title of the story on page 73. Then answer the questions below.1. What did the girl buy 2. What do you think the story may be about Tick (√ ) the possible answers.a. Where electricity comes from.b. What electricity is like.c. What we use electricity for. d. How we can use electricity safely.Step 3 Reading1.引导学生带着问题观看视频1. What were the family talking about 2. What was Daisy going to do 3. Could Daisy buy electricity at last 4. What did Daisy buy as a packet of electricity 2.引导学生根据视频回答问题3.引导学生通过上下文理解语言点每个语言点通过超级链接讲解或者练习之后，回到课文正文。其中way相关的短语辨析，引导学生根据语境和复习说出短语的意思。Step 4 C Vocabulary1.The words in italics are from the story on page 73. Circle the correct answers to complete these sentences. 引导学生选出所学生词的同义词2.Complete the passage below with the words from the box.引导学生运用词汇，完成语段Step 5 Reading and acting1 播放视频，引导学生模仿语音、语调跟读引导学生根据短文内容将对话补充完整Group work引导学生朗读对话并尝试表演Pair work引导学生围绕本课话题，利用所学生词创编对话Step 6. Summary让学生尝试总结学的的生词和短语1. Wordselectricity, anyone, reply, foolish, wire, connect, moment, battery, cable2. Phrasesin a way, (be) connected to, a moment later, power stationStep 7. Exercises一、为划线词语选出同义词二、完成句子Step 8 Homework1. 抄写并背诵词汇。2. 熟读并表演对话。 通过图片理解词义翻译句子完成连线根据语境完成句子完成填空练习学生汇报预习结果完成预测题目观看视频完成学案中探究点一，回答问题完成探究点二：形容词修饰不定代词的位置探究点三：way 相关短语辨析完成教材中的练习完成练习观看视频，模仿跟读对话填空、读演创编对话并展示回顾所学内容完成练习 培养学生利用语境猜测词义，学习词汇的能力培养学生通过语境综合运用所学知识的能力培养学生对知识的综合运用能力培养学生的总结归纳能力，提升知识运用能力培养学生的读图能力培养学生通过多种途径获取信息和处理信息的能力培养学生通过多种途径预测语篇的能力培养学生带着目的寻找文章细节的能力培养学生对细节的理解培养学生通过语境理解语言点的技能培养学生对所学词汇知识的综合运用能力培养学生探究合作的能力培养学生对所学语篇综合运用能力激发学生积极性，鼓励发散思维和想象力，培养对语言的综合运用能力和语言输出能力养成及时总结的学习习惯培养学生对知识的综合运用能力培养学生对知识的综合运用能力和语言输出能力
课堂小结 1. Wordselectricity, anyone, reply, foolish, wire, connect, moment, battery, cable2. Phrasesin a way, (be) connected to, a moment later, power station
板书 Unit 6.1 Electricity1. Wordselectricity, anyone, reply, foolish, wire, connect, moment, battery, cable2. Phrasesin a way, (be) connected to, a moment later, power station
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Unit 6 Electricity
Period 1
Reading I
深圳牛津版 七年级下
Lead in
What makes them possible
Electricity.
What needs electricity to work
Lead in
Let’s learn
electricity n. 电
Electricity plays an important part in our life.
电在我们的生活中起着重要作用。
wire n. 电线
The hot wire is caused by overload.
电线发热是由于过载造成的。
Let’s learn
The 2022 Beijing Winter Olympics connect the people around the world.
connect v. (使)连接
Let’s learn
cable n. 电缆
They are building an underground cable tunnel.
他们正在建设一条地下电缆隧道。
Let’s learn
My model plane works with batteries.
我的飞机模型用电池工作。
battery n. 电池
Let’s learn
Let’s learn
foolish adj. 愚蠢的
The foolish man cut the branch where he sat.
那个愚蠢的男人砍自己坐的树枝。
近义词：silly
Let’s learn
moment n. 瞬间；片刻
I still remember the happy moment in Shanghai.
a moment later 片刻之后
We are getting ready for the party at the moment.
我们此刻正在为派对做准备。
power station发电站； 发电装置
There are 30 million people in range of this nuclear power station.
在核电站辐射范围内生活着3千万民众。
Let’s learn
电线
电池
电缆
电
Let’s match
wire
cable
electricity
battery
connect
foolish
moment
连接
片刻
愚蠢的
1. It’s dangerous to join an electric ________ (电线) to a water pipe.
2. She __________ (连接) up the cellphone and the computer.
3. The is enough __________ (电) in my new house.
4. I needed a new ________ (电池) for the robot.
5. We ran a _______ (电缆) from the lights to the stage.
connected
battery
electricity
cable
wire
Let’s fill
Pre-reading
There are different ways of producing electricity.
Write the correct words in the blanks.
solar power water power wind power
A What do you know about …
__________ __________ __________
solar power
water power
wind power
What else can produce electricity
Pre-reading
2. What do you think the story may be about Tick (√ ) the possible answers.
a. Where electricity comes from.
b. What electricity is like.
c. What we use electricity for.
d. How we can use electricity safely.
Look at the photos and the title of the story on page 73. Then answer the questions below.
1. What did the girl buy
The girl bought sweets and batteries.
Electricity all around
Pre-reading
√
√
√
Let’s watch
Watch and answer.
1. What were the family talking about
2. What was Daisy going to do
3. Could Daisy buy electricity at last
4. What did Daisy buy as a packet of electricity
Answer the questions according to the video.
1. What were the family talking about
2. What was Daisy going to do
3. Could Daisy buy electricity at last
4. What did Daisy buy as a packet of electricity
Yes, she could.
She was going to buy a packet of sweets.
Electricity.
Batteries.
Let’s answer
Read the articles and understand.
Electricity all around
One evening, Daisy said, “I'm going to buy a packet of sweets. Does anyone want anything ”
Benny, Daisy's brother, replied, “Can you get me a packet of electricity ”
“Yes, I can,” said daisy. Then she went out.
Benny laughed, “She can't buy electricity in packets like sweets! She'll look foolish.”
Reading
Mum said, “You mustn't say that, Benny!”
“What do you know about electricity, Benny ” Dad asked.
“Electricity gives us power. It flows through wires. It's like water, in a way,” said Benny.
“You're right! Electricity comes into our flat through thin wires. These are connected to cables under the street,” Dad added.
Reading
“What are the cables connected to ” asked Benny.
“They're connected to a power station,” answered Dad.
A moment later, Daisy came back.
“May I have my packet of electricity ” Benny asked.
“Here you are!” said Daisy.
“But ... these are batteries!” said Benny.
“Daisy's right,” said Dad. “The chemicals inside batteries produce electricity.”
Mum said, “Who looks foolish now, Benny ”
Reading
Language points
1 . Does anyone want anything
有人想要什么吗？
anyone pron.(= anybody) 任何人
anything 任何东西
它们都是不定代词，常用于疑问句或否定句中。不定代词作主语时，谓语动词用单数形式。
eg. The confident girl didn’t ask anyone for help.
那个自信的女孩不向任何人求助。
Anything is possible if you work hard.
如果你努力工作，任何事情都是有可能的。
someone = somebody 某人；有人
something 某物；某事
这三个词也是不定代词，一般用于肯定句中。
eg. Someone/Somebody is waiting for you at the gate.
门口有人在等你。
There was something wrong with my computer.
我的电脑出了一些问题。
形容词修饰不定代词，要放在被修饰的形容词之后。
Language points
1. Did you do ______ during the last summer vacation
A. anything special B. something special
C. special something (2020黑龙江绥化)
2. —— I want to buy _____ for my grandpa to make him happy.
—— That's a good idea. (2020甘肃天水)
A. anything special B. special something
C. special anything D. something special
Let’s choose
2. Benny, Daisy' s brother, replied, “Can you
get me a packet of electricity ”
Daisy的哥哥Benny回答说：“你可以帮我带一包电吗？”
(2) “I like the gift.” Susan replied to me happily.
“我喜欢那个礼物。”苏珊高兴地回答我。
(1) He didn't reply anything in the e-mail.
在邮件中他什么也没有回答。
reply v.
“回答；回答说”。同义词为answer。
Language points
My friend got me a toy tiger last week.
上周我朋友给我带了一个玩具老虎。
3. get sb. sth.
= get sth. for sb.“给某人带某物”
= My friend got a toy tiger for me last week.
改写同义句。
Can you get me some milk
= Can you ___________________
get some milk for me
Language points
4 . “What do you know about electricity, Benny ” Dad asked.
“班尼，你对电了解什么？”爸爸问。
know about 了解，后面接名词或者动名词
We can know about electricity with the posters.
我们可以通过海报了解电。
Language points
5 .It's like water, in a way, ...
在某种程度上，它就像水……
in a way=in some ways在某种程度上
e.g. In a way, I agree with you.
在某种程度上，我同意你的意见。
Language points
1) in the way = in one's way 挡路，碍事
You are in my/the way. I can’t pass by.
2) in this way这样/以这种方式
We can’t talk to him in this way.
3)by the way 顺便问
By the way, Who is on duty today？
4) on the way 在路上 on the / one’s way (to)…在某人去…的路上
I met two of my classmates on my way to school.
Language points
短语辨析
Exercises
1. —— Would you please not be ____ I need to pass by.
—— Sorry, just go ahead.
A. in a way B. in the way C. by the way
2. 在某种程度上，电脑给我的工作带来了很大的帮助。
______ ______ _______, computers help me a lot in my work.
In a way
6. These are connected to cables under the street, ...
这些连接到街道下面的电缆上……
be connected to 被连接到
be connected with 与 ... 有联系
e.g. These wires should be connected to the computer.
这些电线应该接到电脑上。
Everyone is connected with the environment.
人人都与环境有联系。
Language points
Exercises
1. 这个鼠标无法工作是因为没有连接到电脑。
The mouse can not work because it's not _________ ______ the computer.
2. I hear a high-speed railway will be built to _______ Taizhou _______ Shanghai in the following years.
A. connect; to B. connected; with
C. connects; to D. connecting; with
connected to
Exercises
The words in italics are from the story on page 73. Circle the correct answers to complete these sentences.
1. If you reply to a question, you ______ it.
a. ask b. answer
2. A foolish person usually does ______ things.
a. harmful b. silly
3. When my computer is connected to the Internet, the Internet ___ my computers and the other computers in the world together.
a. joins b. carries
4. If you ask someone to wait for a moment, you’ll come back in ____.
a. a long time b. a short time
5. Batteries provide toy cars with _____.
a. electricity b. heat
Complete the passage below with the words from the box.
Electricity is like water, __________. It flows from the ____________ to our homes. The lights, TVs and computers in our homes are ____________ the power station through ______. Electricity is very important to us. We need it at home, at work and in schools. Could________ live in a world without electricity
anyone connected to in a way power station wires
in a way
power station
connected to
wires
anyone
Exercises
Exercises
Read and finish the following dialogue.
Daisy: I’m going to buy ________________. Does ________ want
__________
Benny: Can you get me ___________________
Daisy: Yes, I can.
Benny (laughs): She can’t buy electricity _________ like sweets.
She’ll look _______.
Mum: You mustn’t say that, Benny.
a packet of sweets
anyone
anything
a packet of electricity
in packets
foolish
Exercises
Dad: What do you know about electricity, Benny
Benny: Electricity gives us power. It flows through _____. It’s
like water, ___________.
Dad: You’re right! Electricity comes into our flat through thin wires. These _______________ cables under the street.
Benny: What are the _____ connected to
Dad: They're connected to a ______________.
wires
in a way
are connected to
cables
power station
Exercises
A moment later, Daisy comes back.
Benny: May I have my _________________
Daisy: Here you are.
Benny: But … these are _________!
Dad: Daisy’s right. The chemicals inside batteries produce
____________.
Mum: Who looks _________ now, Benny
batteries
packet of electricity
electricity
foolish
Read and act out the dialogue.
Group work
Summary
1. Words
electricity, anyone, reply, foolish, wire, connect, moment, battery, cable
2. Phrases
in a way, (be) connected to, a moment later, power station
Exercises
1.They connect the computer to the printer.
A.join B.carry C．take
2.—— How foolish you are! You should not make the same mistake (错误) again and again.
—— Oh, I am really sorry for it.
A. worried B. silly C. happy
4.He didn't reply to my question.
A. answer B. bring C. give
一、为划线词语选出同义词
Exercise
二、完成句子
1.所有电脑都已经联网了，你可以使用其中一台来工作。
All the computers________ ________ ________ the Internet, you can use one to work.
2.在某种程度上，它像水。
It is like water, ________ ________ ________.
are connected to
in a way
Exercises
3.它在电线里流动。
It ______ ________ ______ ______ .
4.等我一下，我想在超市买袋盐。
Wait me for a while. I want to buy______ ______ _____ salt in the supermarket.
5.电池里面的化学物质产生电。
The _________ ________ ________ produce electricity.
flows through a wire
a packet of
chemicals inside batteries
Exercises
Homework
1. 抄写并背诵词汇。
2. 熟读并表演对话。
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Module 3 Unit 6 Electricity -Reading I 导学案
学生姓名 班级 序号 1
课题内容 Reading A, B, C
学习目标与核心素养 Knowledge objectives: 理解并能够正确使用词汇electricity, anyone, reply, foolish, wire, connect, moment, battery, in a way, (be) connected to, a moment later, power stationSkill objectives: 用正确的语音语调朗读课文3.Emotional objectives: 初步了解电的有关信息，培养节约用电的意识。
学习重点 理解并能够正确使用词汇electricity, anyone, reply, foolish, wire, connect, moment, battery, in a way, (be) connected to, a moment later, power station
学习难点 用正确的语音语调朗读课文
上网搜索
What needs electricity to work
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
（二）What can produce electricity
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
探究点一：Answer the questions according to the video.
1. What were the family talking about
_________________________________________________
2. What was Daisy going to do
_________________________________________________
3. Could Daisy buy electricity at last
_________________________________________________
4. What did Daisy buy as a packet of electricity
_________________________________________________
探究点二：形容词修饰不定代词的位置
___________________________________________________________________________
探究点三：way 相关短语辨析
1) in the way = in one's way ______________________
You are in my/the way. I can’t pass by.
2) in this way______________________
We can’t talk to him in this way.
3)by the way ______________________
By the way, Who is on duty today？
4) on the way ______________________
on the / one’s way (to)…______________________
I met two of my classmates on my way to school.
一、单选题
1．—How much milk do we have
—There are three___________ of milk on the desk.
A．box B．packets C．pieces D．packet
2．—Shall we go out for a walk
—Sorry. This is not the right ___________to invite me. I am too tired to walk.
A．place B．price C．moment D．chance
3．Our head teacher is kind to us and she is like our mother__________.
A．on the way B．by the way
C．in a way D．in the way
4．—Is your sister ill
—Yes, but __________, only a little cold.
A．serious anything B．nothing serious
C．serious nothing D．anything serious
5．—I think he is taking an active part in the social work.
—I agree with you _____.
in a way B．on the way
C．by the way D．in the way
6．—Water __________electricity.
—Yeah. They__________ make our life better.
A．is like; both B．looks like; both
C．is like; all D．looks like; all
7．—How does electricity come into our flat
—It comes into our flat__________ thin wires.
A．in B．to C．from D．through
8．The electricity is like water in a way.
A．in some ways B．by the way
C．in the way
9．—Does the singer get many letters every day
—Yes, but he has no time to reply.
A．think B．find C．answer
10．It's time to put away those foolish ideas.
A．polite (有礼貌的) B．silly C．funny
11．WeChat makes our conversation much easier and quicker than before because it connects us together.
A．carries B．puts C．joins
12．He didn't reply to my letters.
A．receive B．answer C．send
二、单词拼写
13．I need some help. Can a come and help me
14．You can c the speakers to your CD player.
15．The telephone w was cut by him.
16．Please wait a m . The manager will come here shortly.
17．He was so f that he made such a mistake.
18．The e in the room is off,so it's dark inside.
19．The little boy went to bed. A m later, he fell asleep.
20．Is a worried about the English exam
21．You shouldn't make such a f mistake.
22．The clock doesn't work without a b .Can you change a new one
三、语法填空
23．Here (be) three packets of rice.
24．He (reply) to my letter last night. I am writing back to him.
25．—How much are the two packs of (battery)
—Ten yuan, please.
26．It's (fool) of you to give money to the man over there.
27．The TV set couldn't work without (electrical).
28．The factory can (product)many telephones every year.
29．The (powerful) station does a lot of help to us.
参考答案
预习案
（一）
（二）
探究案
探究点一：Answer the questions according to the video.
Electricity.
She was going to buy a packet of sweets.
Yes, she could.
Batteries.
探究点二：形容词修饰不定代词的位置
形容词修饰不定代词，要放在被修饰的形容词之后。
探究点三：way 相关短语辨析
挡路，碍事
这样/以这种方式
顺便问
在路上；在某人去…的路上
训练案
1．【答案】B
【解析】句意：——我们有多少牛奶 ——桌子上有三包牛奶。box盒；packets包（复数）；pieces片；packet包（单数）。根据three和of milk可知，本空为of的名词所有格形式，数词three后应使用名词复数，排除A，D项；结合句意，一般为三包牛奶。故选B。
【点评】考查名词辨析。注意名词所有格中的数词，并结合翻译和常识，选择正确答案。
2．【答案】C
【解析】句意：——我们出去散步好吗 ——抱歉。现在不是邀请我的时候。我累得走不动了。place地方；price价格；moment时间；chance机会。根据句意，此处表示不是一个好的时间。故选C。
【点评】考查名词辨析。注意理解选项词义，理解句意。
3．【答案】C
【解析】句意：我们的班主任对我们很好，在某种程度上她就像我们的妈妈。on the way在……途中；by the way顺便说一下，顺便问一下；in a way在某种程度上；in the way挡路，妨碍；根据Our head teacher is kind to us and she is like our mother可知班主任对我们很好，在某种程度上像妈妈，故答案为C。
【点评】考查短语辨析。注意识记in a way的意义和用法。
4．【答案】B
【解析】句意：——你姐姐病了吗？——有，但是不严重，只是有点凉。根据只是有点凉，可知不严重，故是否定代词，serious是形容词，做不定代词的后置定语，故选B。
【点评】考查代词辨析和不定代词的用法，注意识记不定代词要放于形容词之前。
5．【答案】A
【解析】句意：——我认为他正在积极参加社会工作。——我在某种程度上同意你。in a way在某种程度上，on the way在途中，by the way顺便问一下，in the way挡道，妨碍，这里指”我在某种程度上同意你“，故选A。
【点评】考查短语辨析。注意掌握词组in a way，on the way，by the way，in the way的词义。
6．【答案】A
【解析】句意：——水就像电一样。——是的。它们都让我们的生活更美好。be like像……一样；look like看起来与(某人或某物)相像；both两个都；all三个或三个以上的全部，都；根据句意可知是说水和电一样让我们的生活更好，第一个空用be like；第二个空前面的主语they指电和水两者物，用both，故答案为A。
【点评】考查短语和代词辨析。注意识记be like和both的用法。
7．【答案】D
【解析】句意：——电是怎样进入我们的公寓的 ——通过细电线进入我们的公寓。in在……里面，用……语言；to朝，位于；from从……；through穿行，越过，通过；根据How does electricity come into our flat 可知是问电是怎样进入我们的公寓的，结合常识可知是通过电线，故答案为through，故答案为D。
【点评】考查介词辨析。注意识记介词through的用法。
8．【答案】A
【解析】句意：在某种程度上，电就像水。in a way在某种程度上；in some ways在某些方面；by the way顺便说说；in the way妨碍，挡道。根据句意，电像水一样，此处表示在某些方面。故选A。
【点评】考查词义辨析。注意识记in a way；by the way；in the way的区别。
9．【答案】C
【解析】句意：——这个歌手每天得到许多信吗？——是的，但是他没有时间去回复。reply回复；think想；find找到；answer回答。根据get many letters和he has no time to可知，此处表示没有时间去回信。故选C。
【点评】考查词义辨析。注意识记answer与reply是同义词。
10．【答案】B
【解析】句意：是时候摒弃那些愚蠢的想法了。根据划线单词foolish，愚蠢的，结合选项：polite有礼貌的；silly，傻的，愚蠢的；funny有趣的，古怪的；可知silly符合题意，故答案为B。
【点评】考查词义辨析。注意识记形容词silly的用法。
11．【答案】C
【解析】句意：微信让我们的沟通比以前更容易和更快，因为它把我们联系在一起。connect连接；carry搬；put放置；join加入，连接。根据句意可知，此处表示连接我们在一起。故选C。
【点评】考查词义辨析。注意识记join和connect都有“连接”的意思。
12．【答案】B
【解析】句意：他没有回我的信。reply to，回复；根据选项：receive收到；answer回答，答复；send发送，寄；可知answer符合题意，故答案为B。
【点评】考查词义辨析。注意识记动词answer的用法。
13．【答案】anyone
【解析】句意：我需要帮助。谁能来帮我一下吗 根据 I need some help. 可知需要人帮忙，下文应该是问有人来帮我吗，someone某人，这里是疑问句，用anyone，故答案为anyone。
【点评】考查不定代词。注意识记代词anyone的用法。
14．【答案】connect
【解析】句意：你可以把扬声器和你的CD播放机连接起来。can情态动词，后跟动词原形。connect…to把……和……相连，固定搭配，故答案为connect。
【点评】考查动词原形。注意识记动词connect的用法。
15．【答案】wire
【解析】句意：电话线被他切断了。根据was cut by him. 可知是某物被他切断，结合语境和首字母可知wire，线，符合题，telephone wire电线，根据was可知是单数，故答案为wire。
【点评】考查可数名词。注意识记名词wire的用法。
16．【答案】moment
【解析】句意：请稍等。经理马上就来。根据The manager will come here shortly. 可知经理还没有到，要等一会，moment片刻，一会，wait a moment ,稍等，固定搭配，故答案为moment。
【点评】考查可数名词。注意识记名词moment的用法。
17．【答案】foolish
【解析】句意：他如此愚蠢以至于犯了这样的错误。根据was so…that可知这里是形容词，根据that he made such a mistake.可知他犯了不该犯的错误，结合首字母提示可知foolish，愚蠢的，形容词，符合题意，故答案为foolish。
【点评】考查形容词原级。注意识记形容词foolish的用法。
18．【答案】electricity
【解析】句意：房间里停电了，所以里面很黑。the后跟名词，根据in the room is off, so it's dark inside. 房间黑，可知是停电了，electricity，电，电力，符合题意，故答案为electricity。
【点评】考查名词。注意识记名词electricity的用法。
19．【答案】moment
【解析】句意：小男孩上床了，一会儿，他睡着了。不定冠词a修饰名词，根据首字母提示可知是，a moment later，一会之后，故填moment。
【点评】考查名词拼写，注意识记a moment later的词义和用法。
20．【答案】anyone
【解析】句意：有人担心英语考试吗？此处缺少主语，根据首字母提示和担心英语考试，可知是某人担心考试，一般疑问句中anyone表示某人，故填anyone。
【点评】考查不定代词拼写，注意根据句意确定词义，再拼写出正确的单词。
21．【答案】foolish
【解析】句意：你不应该犯这样愚蠢的错误。mistake是名词，其前是形容词做定语，根据首字母提示和不应该犯错误，可知是愚蠢的，foolish是形容词，故填foolish。
【点评】考查形容词拼写，注意形容词要修饰名词。
22．【答案】battery
【解析】句意：这个钟没有电池就不能用。你能换个新的吗？a后跟单数可数名词。根据The clock doesn't work without可知是没有……钟表不会走，结合常识和首字母提示可知，battery电池，符合题意，故答案为battery。
【点评】考查可数名词。注意识记名词battery的用法。
23．【答案】are
【解析】句意：这是三包米饭。here be+名词，倒装结构，be的形式由后面的名词决定。根据句意此句要用一般现在时，three packets of rice，是名词的复数形式，故填are。
【点评】考查系动词be的基本用法。注意主谓一致。
24．【答案】replied
【解析】句意：他昨晚给我回了信。我正在给他回信。reply动词，回复；根据时间状语last night，昨天晚上，可知动词用过去式，故答案为replied。
【点评】考查动词过去式。注意识记动词reply及其过去式的用法。
25．【答案】batteries
【解析】句意：——两包电池多少钱？——十元，请。battery电池，可数名词；根据are和two packs of可知用复数形式，故答案为batteries。
【点评】考查可数名词复数。注意识记名词battery及其复数的用法。
26．【答案】foolish
【解析】句意：你真傻，把钱给那边那个人。fool名词，傻瓜；根据固定搭配it's+形容词+of sb to do sth可知这里用形容词，fool的形容词为foolish，愚蠢的，故答案为foolish。
【点评】考查形容词原级。注意识记固定搭配it's+形容词+of sb to do sth的用法。
27．【答案】electricity
【解析】句意：这台电视机没有电就不能用。electrical，有关电的，形容词。根据句意和介词without可知这里用名词，意思是没有电电视就不能工作，electricity，名词，电，符合题意，故答案为electricity。
【点评】考查不可数名词。注意识记名词electricity的用法。
28．【答案】produce
【解析】句意：这家工厂每年能生产许多电话机。product，名词，产品；can后跟动词原形，product的动词形式为produce，生产，符合题意，故答案为produce。
【点评】考查动词原形。注意识记动词produce的用法。
29．【答案】power
【解析】句意：发电站对我们帮助很大。powerful，形容词，强大的，强有力的；根据句子结构可知这里是修饰名词station，可知这里是发电站，power station发电站，名词修饰名词作定语，故答案为power。
【点评】考查名词。注意识记power station的用法。
一、预习案
二、探究案
三、训练案
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