A UFO (Unidentified Flying Object) is any object flying in the sky which cannot be identified by the person who sees it. Sometimes the object is investigated. If people can still not figure out what the object is after an investigation, it is called a UFO. If they figure out what the object is, it can no longer be called a UFO because it has been identified.

Even though UFOs can be anything, people often use the word UFO when they are talking about alien spacecraft. Flying saucer is another word that is often used to describe an unidentified flying object.

Studies estimate that 50%-90% of all reported UFO 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% UFOs are identified as one of three different things: astronomical causes (for example:planets, stars, or meteors); aircraft; balloons. 10%-20% of UFOs are other causes (such as birds, clouds, mirages, searchlights, etc.)

29. What does the word “figure out” in paragraph 1 mean?

A. observe                         B. explain                           C. calculate                        D. require

30.  Another word used to describe a UFO is _________.

A. spacecraft                     B. astronaut                       C. flying saucer                  D. cooking oil

31. Most of UFOs are identified as one of the following things EXCEPT _________.

A. stars                              B. balloons                         C. clouds                            D. rains

32. Which of the following sentences is NOT true?

A. UFO means Unidentified Flying Object.

B. UFO is often used to talk about alien spaceships.

C. Many UFO sightings are hoaxes.

D. Over half of all reported UFO sightings are identified.

A UFO (Unidentified Flying Object) is any object flying in the sky which cannot be identified by the person who sees it. Sometimes the object is investigated. If people can still not figure out what the object is after an investigation, it is called a UFO. If they figure out what the object is, it can no longer be called a UFO because it has been identified.

Even though UFOs can be anything, people often use the word UFO when they are talking about alien spacecraft. Flying saucer is another word that is often used to describe an unidentified flying object.

Studies estimate that 50%-90% of all reported UFO 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% UFOs are identified as one of three different things: astronomical causes (for example: planets, stars, or meteors); aircraft; balloons 10%-20% of UFOs are other causes (such as birds, clouds, mirages, searchlights, etc.)

1.What does the word “figure out” in paragraph 1 mean?

A. observe    B. explain     C. calculate   D. require

2.Another word used to describe a UFO is.......

A.spacecraft     B.astronaut    C.flying saucer     D.cooking oil

3.How many percents of all reported UFO sightings are not identified 

A. 10%-20%     B.20%-30%    C.30%-50%    D.80%-90%

4.Most of UFOs are identified as one of the following things except......

A.stars    B.balloons    C.clouds    D.rains

5.Which of the following sentences is not true?

A.UFO means Unidentified Flying Object

B.UFO is often used to talk about alien spaceships

C.Many UFO sightings are hoaxes

D.Over half of all reportes UFO sighting are identified

Read the passage below and choose one correct answer for each question.

A UFO (Unidentified Flying Object) is any object flying in the sky which cannot be identified by the person who sees it. Sometimes the object is investigated. If people can still not figure out what the object is after an investigation, it is called a UFO. If they figure out what the object is, it can no longer be called a UFO because it has been identified.

Even though UFOs can be anything, people often use the word UFO when they are talking about alien spacecraft. Flying saucer is another word that is often used to describe an unidentified flying object.

Studies estimate that 50%-90% of all reported UFO 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% UFOs are identified as one of three different things: astronomical causes (for example: planets, stars, or meteors); aircraft; balloons 10%-20% of UFOs are other causes (such as birds, clouds, mirages, searchlights, etc.)

What does the word “figure out” in paragraph 1 mean?

A. observe

B. explain

C. calculate

D. require

Read the passage and choose the correct answer to complete the sentence:
A UFO (Unidentified Flying Object) is an object flying in the sky which cannot be identified by the person who sees it. Sometimes the object is investigated. If people can still not figure out what the object is after an investigation, it is called a UFO. If they figure out what the object is, it can no longer be called a UFO because it has been identified.
Even though UFOs can be anything, people often use the word UFO when they are talking about alien spacecraft. Flying saucer is another word that is often used to describe an unidentified flying object.
Studies estimate that 50 % -90 % of all reported UFO 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 . % -90 % UFOs are identified as one of three different things: astronomical causes (for example: planets , stars , or meteors ) ; aircraft , balloons 10 % -20 % of UFOs are other causes (such as birds, clouds, mirages, searchlights, etc.)
1. What does the word "igure out" in paragraph 1 mean?
A. observe B. explain C. calculate D. require
2. Another word used to describe a UFO is ………………….
A. spacecraft B. astronaut C. flying saucer D. cooking oil
3. How many percents of all reported UFO sightings are not identified?
A. 10 % -20 % B. 20 % -30 % C. 30 % -50 % D. 80 % -90 %
4. Most of UFOs are identified as one of the following things except .
B. balloons C. clouds D. rains A. stars
5. Which of the following sentences is NOT true?
A. UFO means Unidentified Flying Object.
B. UFO is often used to talk about alien spaceships.
C. Many UFO sightings are hoaxes.
D. Over half of all reported UFO sightings are identified

TRUE(T) orFALSE(F)

An Unidentified Flying Object or a UFO is the name we give to something in the sky that we don't recognize. For thousands of years, there have been stories about strange subjects in the sky. Until recently,howerver, hardly anyone believed these stories. Soame of them sounded just too crayzy to be true. If you reorted seeing a"flying saucer" or something like that, most people thought you were imagining things.

 Recently, howerver, there have beeb many more reports of UFO sightings. Many if these objects have been seen by more than one person, so it is not easy to laugh at them. Occasionally, photographs have been taken which show that there was something there. But what was it? There is still such a lot we don't understand about the world we live in.

1.Stories about UFOs started a long time ago.

2.Until recently, most people have believed in the existence of UFOs.

3. Photographs may be not evidence for UFO appearance

4. Each UFO sighting has been seen by only one person 

l in the blank with one suitable word from the box.
        
Neptune                           Galaxy                      Unidentified flying object                              meteor
planet                            spacecraft                               alien                              pilot    
Mineral                           gemstone                                 orbit                     outer
        
1.    Is “The Milky Way” another name of the ......................... ?
2.    In the solar system, counting from the Sun, ......................... ranks eighth.
3.    Our Earth is just a small part of the ......................... space.
4.    UFO is an abbreviation for “ . Unidentified flying object........................ 
5.    Earth is the ......................... on which we live.
6.    A ......................... is a vehicle that travels in space.
7.    An ......................... is a creature from a planet other than Earth.
8.    A ......................... is a person who flies an aircraft.
9.    A large piece of rock from space that appears as a bright light in the sky is called ......................... 
10.    ......................... are natural substances such as coal, oil, salt, gold, or diamonds.
11.    A ......................... is a beautiful expensive stone that is used to make jewelry.
12.    An ......................... is a curved path taken by a planet or an object as it moves around another planet, star, moon, etc.
 

Hoàn thành câu:

1. We apologize for the .................................... caused to the passengers. (convenient)

2. Using the Internet in daily life can be .......................... (cost)

3. Astronauts who are orbiting the Earth often experience sensation of ................................. (weight)

4. NASA scientists believe the ...................... (egist)

2. UFO, which means flying saucer, is the abbreviation for ................................... Flying Object (identify)

Read the passage and choose the correct answer (A, B, C or D).

Earth, our beautiful home planet, is the only astronomical object to accommodate life (23) . . . . . we know it. Scientists believe Earth was (24) . . . . . approximately 4.5 billion years ago. It is the fifth-largest (25) . . . . . in our solar system. Its equatorial diameter is about 12,074 kilometres. Earth is the third-closest planet to the sun. The distance from Earth to the sun is roughly 149,600,000 kilometres. It (26) . . . . 365,3 days for Earth to obit the sun, and 24 hours to rotate on its axis. The surface temperature ranges from -88 to 58°

C. Nearly 70 percent of Earth’s surface is covered by ocean, (27) . . . . has an average depth of about 4 kilometres. In 2015 it was estimated that 7,3 billion humans are living on Earth.

Question 24:

A. find

B. formed

C. found

D. built

Read the passage and choose the correct answer (A, B, C or D).

Earth, our beautiful home planet, is the only astronomical object to accommodate life (23) . . . . . we know it. Scientists believe Earth was (24) . . . . . approximately 4.5 billion years ago. It is the fifth-largest (25) . . . . . in our solar system. Its equatorial diameter is about 12,074 kilometres. Earth is the third-closest planet to the sun. The distance from Earth to the sun is roughly 149,600,000 kilometres. It (26) . . . . 365,3 days for Earth to obit the sun, and 24 hours to rotate on its axis. The surface temperature ranges from -88 to 58° C. Nearly 70 percent of Earth’s surface is covered by ocean, (27) . . . . has an average depth of about 4 kilometres. In 2015 it was estimated that 7,3 billion humans are living on Earth.

Quesstion 23:

A. as

B. so

C. because

D. that