内容正文:
八年级检测卷
八年级检测卷
一、阅读理解
b.Put a cotton swab into the mixture.
阅读下面四篇语言材料,然后按文后要求做题。
e.Mix lemon juice and water.
A
d.Write some words on a piece of white
How to write a secret message
paper with the wet cotton swab.
Do you want to write a message that can only be
e.Dry the paper.
read by a person?It is a secret message for that
A.a-d-c-b-e
B.c-b-a-e-d
person only.The other people can't see the message
C.c-b-d-e-a
D.a-e-b-c-d
on the paper.Only that person knows how to make the
)3.When can you see the secret message
message appear.Here's an experiment(实验)on how
according to the form?
to write such a message.
A.After you dry the paper.
You'll need
B.After you heat the paper.
*half a lemon
米aCup
C.When you hold the paper up.
four spoons of water
*a cotton swab(棉签)
D.When you shake the paper.
*white paper*a light bulb(电灯泡)
)4.What does the text mainly talk about?
What to do
A.It tells us how we can make good use of
年
fruit juice.
B.It explains why water is very important in
☑a&
our daily life.
C.It tells how we can make a mixture of
1.Squeeze (some lemon juice into water.Mix
water and lemon juice.
the water and juice.
D.It shows how we can use lemon juice and
2.Put the cotton swab into the mixture(混合物)
water to write a secret message.
and make it wet.Use the wet cotton swab to write
(
)5.Where is the text probably taken from?
some words on the paper.
A.A storybook.
3.Let the paper dry.Show it to someone and ask if
B.A cookbook.
he or she can see the words on the paper.
C.A science magazine
4.Hold the paper close to a light bulb to heat it.
D.A travel guidebook.
Ask him or her again.
Let me explain it!
Araba Maze noticed neighborhood kids gather
Lemon juice has chemicals that have carbon
around her as she read children's books to her niece
()The chemicals break down easily when they
()When she finished reading,one of the kids
are heated.And the carbon makes them turn into a
asked,“When are you going to do this again?”
dark color.
Maze later made it an everyday event,and fin