If someone asked you, What color is the sky? I expect that you would answer, Blue. I am afraid that you would be wrong. The sky has no color. When we see blue, we are looking at blue sunlight. The sunlight is shining on little bits of dust in the air.
What is the sky? The sky is space. In this space there is nothing except the sun, the moon and all the stars.
The moon is about 384,000 kilometers away from the earth. An airplane cannot fly to the that can fly even when there is no air. This is rocket.
This is how a rocket works. It is not made of rubber like a balloon, of course. It is made of metal. The metal must not be heavy but it must be very strong. There is gas inside the rocket which is made very hot. When it rushes out of the end of the rocket, the rocket is pushed up into the air.
练习:
A) It is blue.
C) It is grey.
2. When an airplane flies too high,
B) the air will become thicker.
D) the air will disappear in no time.
A) it looks like a balloon.
C) it doesnt have wings.
4. Which of the following statements about a rocket is NOT true?
B) It can fly without wings.
D) It is propelled by burning gas inside it.
A) hot gas rushes out of its head.
C) hot gas rushes out of its bottom.
Keys:DADDC
六一儿童节,Childrens Day
关于五一的英语作文 小升初英语作文选
感恩节英语作文:Thanksgiving Day
小升初英语写作 英语作文小句子(二)
关于火的英语作文
小升初英语作文Save Water 保护水资源
关于动物的英语作文-大象
My winter holiday 英语作文2
欢迎你到北京动物园_英语作文
小学英语奥赛范文:A family
小学英语作文A Wonderful Day
英语作文:我最喜爱的动物(Myfavoruteanimals)
写人的英语作文:我最钦佩的人
小升初作文The Colour of Autumn
关于动物的英语作文 Pet Rescue 拯救受虐动物
小学英语奥赛范文:I love playing basketball
小学英语奥赛范文:2008奥运会
小升初英语写作 英语作文小句子(三)
五一长假英语作文:“我的五一”
小学英语奥赛范文:My good friend
小学英语奥赛范文:My Pet
感恩节英语作文:Earthquake love Thanksgiving
小学英语奥赛范文:Help mum do the housework
小学英语奥赛范文:Myself
小学英语奥赛范文:A letter to Dad
小升初英语作文 我的姐妹
写人作文 英语
My winter holiday 英语作文4
短篇英语作文:逛动物园
英语作文 人与动物(The man and animals)
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