tieng anh 9

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UNIT 16: INVENTIONS
I. Choose one word from the box to fill in the blank:

Show store manufactured behave ingredients
Developing sample loudspeaker steps

1. Sugar, flour, milk and apples are ………. of this kind of cake.
2. A ………. helps people from a long distance hear daily broadcast.
3. Is Vietnam one of the ………. countries?

4. You can get paper from a ……….
5. What are ………. in this factory?

6. Do you know the ………. of manufacturing rubber?
7. Why does he ………. so strangely?

8. This is a ………. of our product.

9. I’d like to have a look at the factory. Could you ………. me around?
II. Change the following sentences into passive voice

1. He was fixing a computer when I came.

………
2. We will visit the house next Monday.

………
3. She turns off the light before she goes to bed.

………
4. I am going to clean the floor this afternoon.

………
5. I water flowers every morning.

………
6. He is reading a novel.

………
7. Mum is making some clothes for the party.

………
8. She was cooking a meal when the phone rang.

………
III. Give the correct tense of the verbs

1. The professor (give) ………. a speech on history at the moment.
2. A research (do) ………. by the professor for 3 years.

3. An English-speaking club (hold) ………. in our school next year.
4. We (organize) ………. a workshop on environment this weekend.
5. Something (do) ………. in our city to improve living condition so far.
6. They (take) ………. part in a contest last year.

7. We (go) ………. home with you then. Do you agree?
8. Flowers (cut) ………. in the morning to sell in the market.
IV. Correct the mistakes

1. What are you done there? –I’m fixing the computer.

……….
2. What has been doing so far in your school? –a club has been held.

……….
3. A book is being writing by the famous writer.

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4. They have build a big hospital in the area.

………
5. Do you know how a computer is worked?

………
6. I am like tomatoes, potatoes and hamburger.

………
7. The teacher is explained the lesson to the class.

………
8. The students are listened carefully to the teacher.

………
V. Fill in the blank with a suitable word

Our century has (0) seen great changes in the life and living (1) ………. of people. Less 
than a hundred years (2) ………. , many of the things (3) ………. we do now seemed
impossible. No one could imagine that people (4) ………. fly, or that we could listen (5)
………. music thousands of miles away.

Today, radio and television serve many purposes besides (6) ………. and entertainment.
They help us to find fish (7) ………. the sea and to land airplanes in bad (8) ………. or at

night. They control the work of (9) ………. numbers of machines in industry, and (10)
………. hold spaceships in their orbits.

VI. Give the correct form of the words

1. Five hundred years ago, the … wrote on a plant called

papyrus. EGYPT

2. A … official make paper from wood pulp in the year 105. CHINA
3. The Arabs learned about papermaking from Chinese … PRISON

4. Follow me and I’ll show you the steps in the … process. MANUFACTURE
5. I was reading a book when the telephone … RING

6. The festival is … every tow years. HOLD

7. What do you think about the … of the country? DEVELOP

8. Have you received the … yet? INFORM

VII. Read the following passage

About a hundred years ago an American newspaper offered a big prize to anyone who
found a substitute for ivory. The attempt is to make billiard balls cheaper to let to the
invention of celluloid, the first plastic. Its inventor was John Hyatte.

Today more than 3,000,000 organic compounds are known, and at least a hundred new
ones are added every day. Plastic synthetic fibres, fur, leather, etc. are widely used in our
industries and every day life.

Decide whether the following information is true, false or not mentioned.

Statements T F N

M
1. People attempted to make billiard balls less expensive

2. Celluloid is a kind of sugar.
3. John Hyatte invented ivory.

4. More than 3,000,000,000 compounds are known today.
5. About two hundred new ones are added every day.

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7. People are trying to find a substance to substitute leather.
8. A big prize was offered to anyone who found a substitute for

ivory about a hundred years ago.
VIII. Choose the correct answers

1. Paper was ... from wood pulp in 105 by Chinese.
a. Made b. done c. invented

2. The first … machine was invented in the late 1700s.
a. Papermade b. papermake c. papermaking
3. That button cannot …

a. Touch b. touching c. be touched
4. What … so far?

a. Happen b. happened has happened
5. An accident … yesterday.