(共24张PPT)
Unit 5 Look into Science
Lesson 27 Planet Danny
Do you know any of the planets in the solar system
Free Talk
太阳系
The earth, the sun and the moon all belong to the solar system. Our solar system is in a galaxy called the Milky Way. The Milky Way has more than five hundred billion stars. Scientists say the universe contains billions of galaxies. Do you think there is life on other planets
Dig In
1. To understand the meaning and usage of the new words and expressions.
2. To learn more about the universe.
3. To learn the scientific method and enjoy science.
Learning objectives
New words and expressions.
telescope [ tel sk p]
solar [ s l (r)]
certainly [ s tnli]
unless [ n les]
double [ d bl]
mystery [ m stri]
n. 望远镜
adj. 太阳的; 关于太阳的
adv. 当然; 确定
conj. 除非; 如果不
n. & adj. & adv. 两倍（的）
双倍（的）
n. 神秘事物；奥秘
1．What did Danny do last night
□He tried to study the moon.
□He tried to find a new planet.
2．What did Danny use
□A telescope. □A book.
3．What did Danny need
□More sleep. □More stars.
Listen to the dialogue and tick the correct answers.
2
√
√
√
1．Danny is studying the solar system at school.( )
2．Danny is looking through the telescope when Jenny and
Brian come to visit.( )
3．During the day,Danny can see many stars in the sky
through the telescope.( )
4．Jenny and Brian will join Danny after supper.( )
5．Danny has discovered a new planet.( )
Read the lesson and write true (T) or false (F)．
1
T
T
T
F
F
Read the lesson and fill in the blanks.
3
On Saturday afternoon, Brian and Jenny visited Danny at his house. When they arrived, Danny was outside looking ________ a telescope. Brian and Jenny laughed at Danny because he was using the wrong _____ of the telescope. Of course, Danny couldn’t see the ______ during the day. Brian and Jenny also wanted to join Danny. They decided to come back after supper. After the sun went down, they could see the stars. Danny hoped to ________ a new planet.
through
end
stars
discover
1.Danny turns the telescope around and looks through it again. 丹尼把望远镜掉过头来, 又从里面望去。
Language Points
turn around/round 的意思是“调转方向;转身”。
eg：I turned around/ round and saw the boy climbing up
the tree. 我转过身来, 看到那个男孩正在往树上爬。
Why did they turn their desks around 他们为什么把书桌反放了
[拓展] 与 “turn”有关的短语：
turn in 上交,交还 You must turn in your homework today.今天你必须交你的家庭作业。
turn to 求助于 You can turn to your parents if you can’t solve the problem.如果你们不能解决问题可以求助于你们的父母。
turn off 关掉(电流、煤气、水等) Turn off the lights when you leave.当你离开时, 关掉灯。
turn on 打开, 接通(电流、煤气、水等) It’s time for the news. Please turn on the TV.到新闻的时间了。请打开电视。
turn up 开大(音量) I can’t hear it clearly. Turn it up.
我听不清。声音开大点儿。
turn down 调小(音量) It’s too noisy. Turn it down.
太吵了。声音调小点儿。
[拓展] 与 “turn”有关的短语：
look through “从……中看, 透过……看去”
eg：He looks through the hole. 他透过洞看。
[拓展] 与 “look”有关的短语：
look out 当心, 留神
look over 检查, 查看
look after 照顾
look up 查阅; 向上看
2.I don't think you can find one unless you have a bigger telescope. 我认为你发现不了(星星),除非你有一个大一点的望远镜。
unless 连词, 意思是 “除非, 如果不”
由unless 引导的条件状语分句既可以是真实条件, 也可以是非真实条件。作为真实条件分句, “unless”可以和“if...not”互换。
eg：We won't be able to reach the top of the mountain unless the weather changes(=if the weather doesn't change). 如果天气不变化, 我们就不能到达山顶。
3. Actually, double the size of your house! 实际上, 是你房子大小的两倍！
double 可作名词或形容词, 意思是“两倍(的);双重(的)”。也可作动词, 意思是“使加倍”
eg：He offered me double for the computer. 买这台计算机他付了两倍的钱给我。
The workers received double pay for working on Sundays. 工人们因在周日工作而收到了两倍的报酬。
We need to double food supply by 2050. 到2050年, 我们需要加倍供应食品。
4. Well, it's worth a try, even if I don't find a planet.好吧,这值得一试, 即使我找不到一颗行星。
worth adj. “值得”
be worth+n. /doing
eg: Is it worth running such a risk 这样冒险值得吗？
The book is well worth reading.这本书很值得一读。
The book is worth 5 dollars. 这本书值5美元。
even if 为从属连词, 表示假设情况, 意思是“即使·······”用来引导让步状语从句。
eg：He was still working hard at English, even if he was seriously ill. 即使他病得很重, 他还在努力学英语。
5. Maybe we'll find other amazing things!或许我们会发现别的令人惊异的东西！
amazing是amaze的 “ing”形式, 意思是 “(令人)惊异的”;过去分词amazed则表示 “(感到)惊异的”
[拓展] 类似用法的词还有：
disappointing/disappointed; embarrassing/embarrassed; exciting/excited; frightening/frightened; puzzling/puzzled; shocking/shocked; surprising/surprised; satisfying/satisfied
eg: I'm interested in the interesting story. 我对那个有趣的故事感兴趣。
I didn't see the frightening snake at first. 起初我没看到那条令人恐怖的蛇。
She stood there with a puzzled look on her face. 她站在那里, 满脸迷惑的表情。
What interests you about the solar system If you had a chance to go to space, would you go Share your ideas with a partner.
4
Role-play the dialogue with your partner.
Action
What did we learn
telescope
solar system
certainly
unless
double
mystery
at night
even if
turn around/round
I don’t think you can find one unless you have a bigger telescope.
Danny turns the telescope around and looks through it again.
Actually,double the size of your house!
Well,it’s worth a try,even if I don’t find a planet.
Summary
根据句意及首字母提示完成句子.
1. We can see many stars through the (望远镜).
2. You can’t go out (除非)you finish your homework.
3. Twenty years after the event, his death remains a m______.
4. — The woman will give me 10 dollars to buy this T-shirt.
— I’ll give you . Please let me take it.
5. Saturn (土星) is the second biggest planet in the
system.
telescope
unless
ystery
double
solar
1. They will lose the game ________ they try their best.
A．unless B．once
C．since D．after
2. Again and again the doctor ________ the crying baby girl, but he couldn't find out what was wrong with her.
A．looked over B．looked after
C．looked for D．looked out
3. —How do you like the novel
—I think it's well worth ____.
A．read B．to read C．reads D．reading
单项选择
GOOD JOB
