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.

American foods began to affect the rest of the world. American emphasis on convenient and rapid consumption is best represented in fast foods such as hamburgers, French fries, and soft drinks. By the 1960s and 1970s fast foods became one of America's strongest exports as franchises for Me Donald's and Burger King spread through Europe and other parts of the world, including Russia and China. Traditional meals cooked at home and consumed at a leisurely pace gave way to quick lunches and dinners eaten on the run as other countries imitated American cultural patterns.

            By the late 20^lh century Americans had become more conscious of their diets, eating more poultry, fish and vegetables, and fewer eggs and less beef. Cooks began to rediscover many world cuisines in forms closer to their original. In California, chefs combined fresh fruits and vegetables available with ingredients and spices borrowed from immigrant kitchens to create an innovative cooking style that was lighter than traditional French, but more interesting and varied than typical American cuisine. Along with the state's wines, California cuisine took its place among the acknowledged forms of fine dining.

28. Fast foods such as hamburgers, French fries, and soft drinks_______.

            A. are popular because of their nutritious values

            B. are traditional meals of the US people

            C. became more popular than meals cooked at home in China

            D. became popular with other European and Asian countries

29. Which of the following is similar in meaning to the word “cuisine”?

            A. cooking                                                                   B. cooker                                                                     C. cookery                                                                       D. cook

30. What is the main idea of the first paragraph?

            A. America's cuisine used to have an influence on many countries.

            B. Fast foods became one of America's strongest exports.

            C. Me Donald’s and Burger King are American food suppliers successful in Europe.

            D. Traditional meals cooked at home are not common in the US.

31. Which of the following statements is true?

            A. By the late 20^th century, fast foods had lost their popularity in the US.

            B. Americans used to eat more poultry, fish, fruits and vegetables than they do now.

            C. Cooking styles of other countries began to affect Americans by the late 20^th century.

            D. Fewer eggs and less beef in American diet made them fitter.

32. An innovative style of cooking was created in California_______.

            A. to attract more immigrants to the state

            B. and made the state’s wines well-known

            C. by borrowing recipes from immigrant kitchens

            D. by combining the local specialties with immigrants spices

Will robots change our lives in the future? It's a funny question to ask when they're changing our lives now in so many ways and they have been for years. From the first time you saw a toaster (23) - “_______” by itself, we've casually accepted that machines can be trusted to do things for us.

            Right now all modern technology is designed to (24) - “_______” the world to you: phone, radio, television, internet, but if trends continue, robots will soon bring you to the world, everywhere, and at the (25) - “_______”

of thought.

            It's a future goal - something we know we (26) - “_______” do. Robots won't just change our lives in the future, they'll expand them. Not just for fun. but for necessity. We've taken the first steps into welcoming them (27) - “_______” our homes, we just have to wait a bit to proctor them into making US more human. Do you agree?

23. A. pop up                                                               B. to pop up                                                                 C. popping up                                            D. popped up

24. A. transport                                                           B. fetch                                                                                                C. carry                                                                       D. bring

25. A. tempo                                                               B. speed                                                                                              C. beat                                                             D. rate

26. A. need                                                                              B. may                                                                                     C. can                                                              D. ought

27. A. into                                                                                B. with                                                                                     C. for                                                                           D. from