Page 145 - bt Tieng Anh 8 Bui Van Vinh

UNIT 12: LIFE ON OTHER PLANETS
Even though UFOs can be anything, people can use the world UFO when they are talking
about alien spacecraft. Flying saucer is another word that is often used to describe an identified
flying object.

Studies estimate that 50-90% of all reported sightings are identified later. Usually 10-20% are
never identified. Studies also show that very few UFO sightings are hoaxes (people trying to trick
other people). Most UFOs are actually natural or man-made objects that looked strange. 80-90% of
UFOs are identified as one of three different things: (a) astronomical causes (for example: planets,
stars, or meteors); (b) aircraft; and (c) balloons. 10-20% of UFOs are other causes, such as birds,
clouds, mirages, searchlights, etc.
1. Another word used to describe a UFO is .

A. flying saucer B. cooking plane C. spacecraft D. astronaut
2. How many percent of all reported sights are not identified?
A. 20-30% B. 10-20% C. 30-50% D. 80-90%
3. Most of UFOs are identified as one of the following things except .

A. balloons B. clouds C. stars D. rains
4. Which of the following sentences is NOT true?

A. UFO means Unidentified Flying Object.
B. Many UFO sightings are hoaxes.
C. UFO is often used to talk about alien objects.

D. Over half of all reported UFO sightings are identified.
5. What does the word “figure out” in paragraph 1 mean?
A. calculate B. observe C. explain D. require

D. WRITING
I. Write the correct form of the words to complete the sentences.

1. He always has a big smile. He is always . (cheer)
2. Now she is very tired, because she spent a night. (rest)

3. That old man has a bad memory. He is . (forget)
4. He does not care about his actions. He is often . (thought)
5. You should throw this pen away. It is . (use)

6. The man does not pay attention to mistakes. He is . (care)
7. The picture has many colours. It is very . (colour)
8. We enjoyed the party. It was very . (joy)

9. She did not show any fear. She was . (fear)
10. He does not have any friends. He is . (friend)

II. Complete the directed speech sentences.
1. Mr. Smith said: “Where are you going on your vacation this year?

 Mr. Smith asked .................................................................................................................
2. She said: “Did the mechanics finish repairing your car?”
 She asked ...........................................................................................................................

144