内容正文:
八年级(上) Units 7-8
一、阅读理解
How to write a secret message
Do you want to write a message that can only be read by a person?It is a secret message for that person only. Other people cant see the message on the paper. Only that person knows how to make the message appear. Heres an experiment(实验)on how to write such a message.
Youll need
·half a lemon
·four spoons of water
·white paper
·a cup
·a cotton swab(棉签)
·a light bulb(电灯泡)
What to do
1.Squeeze(挤)some lemon juice into the water. Mix the water and juice.
2.Put the cotton swab into the mixture(混合物)and make it wet. Use the wet cotton swab to write some words on the paper.
3.Let the paper dry. Show it to someone and ask if he or she can see the words on the paper.
4.Hold the paper close to a light bulb to heat it. Ask him or her again.
Let me explain it!
Lemon juice has chemicals that have carbon(碳). The chemicals break down easily when they are heated. And the carbon makes them turn dark.
1.【新考法·图文转换】Which of the following things is not needed in the experiment?
A. B.
C. D.
2.What is the correct order of the experiment?
a.Use a light bulb to heat the paper.
b.Put a cotton swab into the mixture of lemon juice and water.
c.Mix some lemon juice and water.
d.Write some words on a piece of white paper with the wet cotton swab.
e.Dry the paper.
A.a-d-c-b-e B.c-b-a-e-d
C.c-b-d-e-a D.a-e-b-c-d
3.You can see the secret message .
A.when you hold the paper up
B.after you heat the paper
C.after you dry the paper
D.when you shake the paper
4.【新考法·写作意图】What is the purpose of the text?
A.To tell us how we can make good use of fruit juice.
B.To explain why water is very important in our daily life.
C.To tell us why we need to use water and electricity wisely.
D.To show how we can use lemon juice and water to write a secret message.
5.Where is the text most probably from?
A.A science magazine.
B.A storybook.
C.A travel guide.
D.A cookbook.
二、完形填空
“Hello, human.” Thats how Ameca 1 visitors at a museum in Dubai. Then, the machine introduces 2 . “Im a robot, and I work for the Museum of the Future.”
Ameca was 3 at Engineered Arts in the UK. It can have conversations on its own. And now, Ameca is the first robot 4 at the museum!
Ameca is the most advanced (先进的) human⁃shaped robot in the world. Besides its human⁃like face and body, it can make facial 5 like humans. It can smile and frown (皱眉). Ameca is 6 very funny! One of the visitors asked if it was 7 to be here. “I m not happy,” it said. “But I can look happy.”
“It was our 8 to make the most expressive (富于表情的) robot,” said Morgan Roe, a director of Engineered Arts. “It wasnt just to make it look like a human, but also to make it 9 like a human.”
Ameca welcomes visitors to the Tomorrow Today Exhibition at the museum. The exhibition is about looking 10 . Where will we be in 10 years? What about in 50 or 100 years?
Almansoori who works in the museum explained, “We want people to feel excited about the 11 . That includes how robots can 12 our lives and how all different technologies are coming to life.”
Humans relationship (关系) with machines has greatly developed in recent years, 13 robots wont be part of common family members soon. Scientists say it will 14 be twenty years before we see robots in homes, but they may start 15 in places like airports and hotels before long.
1.A.praises B.greets
C.prevents D.mentions
2.A.herself B.yourself
C.itself D.themselves
3.A.created B.collected
C.described D.discovered
4.A.actor B.doctor
C.worker D.visitor
5.A.hairs B.expressions
C.illnesses D.problems
6.A.only B.again
C.almost D.even
7.A.worried B.nervous
C.pleased D.proud
8.A.goal B.trip
C.memory D.trouble
9.A.build B.away
C.act D.shape
10.A.down B.away
C.back D.ahead
11.A.future B.time
C.history D.art
12.A.record B.control
C.influence D.stop
13.A.so B.but
C.since D.or
14.A.probably B.hardly
C.especially D.recently
15.A.failing B.proving
C.rising D.appearing
答案速批栏
一、1. 2. 3. 4. 5.
二、1. 2. 3. 4. 5.
6. 7. 8. 9. 10.
11. 12. 13. 14. 15.
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