题目内容
By the year 2050 there may be 12.5 billion people on the earth. We need to produce more food. One way to produce more food is by growing stronger plants. For thousands of years, farmers pick the best plants for next season to make plants better. It works slowly. Since 1983, scientists have been able to change plants more quickly by changing their genetic material（遗传物质）.Foods from plants grown in this way are called genetically modified foods（转基因食品）or GM foods.
By changing the genetic material of a plant, it's possible to make new plants. The new plants are strong against plant diseases（疾病）and help in our diseases. For example, a kind of rice can stop people from becoming blind.
Rich countries produce GM foods because they are easy to grow and bring in more money. Poor countries are interested in them because they help produce more food.
Making GM foods is only one way of feeding people in 2050. Maybe we'll find better ways in the future.
(1) ________ make GM foods.
[
]|
A ．Farmers |
B ．Scientists |
C ．Workers |
D ．Plants |
(2) What are the good things about GM foods?
[
]A
．They make plants strong against diseases.B
．They are unnatural.C
．They can help in human diseases.D
．Both A and C.(3) GM foods ________.
[
]A
．are grown only in rich countriesB
．are grown only in poor countriesC
．are dangerousD
．are a quick way to produce food
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FUN TIME
| 9 | 2 | 4 | 7 | 6 | 3 | 1 | 5 | 8 |
| 5 | 3 | 6 | 8 | 9 | 1 | 4 | 2 | 7 |
| X | 7 | 8 | 2 | 5 | 4 | 9 | 6 | 3 |
| 7 | 1 | 9 | 3 | 4 | 2 | 5 | 8 | 6 |
| 4 | 8 | 3 | 6 | 1 | 5 | 2 | 7 | 9 |
| 2 | 6 | 5 | 9 | 8 | 7 | 3 | 4 | 1 |
| 3 | 9 | 7 | 4 | 2 | Y | 6 | 1 | Z |
| 6 | 5 | 2 | 1 | 7 | 9 | 8 | 3 | 4 |
| 8 | 4 | 1 | 5 | 3 | 6 | 7 | 9 | 2 |
Are you tired of the puzzles you usually do? Sudoku is a new choice. Sudoku consists of the Japanese characters Su (meaning “number”) and Doku (meaning “single”), but it was not invented in Japan. It was created by Howard Garnes in 1979. The puzzle was first introduced into Japan by Nikoli Puzzle Company in 1984. In 1986, Kaji Maki, the president of Nikoli made the rules strict and clear. Soon in the same year Sudoku became popular in Japan. In November 2004, The Times, a British newspaper, first printed it in the newspaper. It became an international hit in 2005. Now Sudoku becomes very popular all over the world.
The rule of the puzzle is to fill in the grids (格子) so that every row, every line and every
3×3 box has the numbers 1 to 9. Here is a Sudoku. Please relax and enjoy. It’s fun!
根据以上杂志专栏内容，回答下列问题。
51. Who created Sudoku?
A. Howard Garnes. B. Sudoku. C. Kaji Maki. D. Nikoli.
52. Which is true about Kaji Maki according to the reading material?
A. He was the boss of Nissan Company.
B. He helped to make Sudoku popular in Japan.
C. He was the president of The Times.
D. He is an American.
53. Which is NOT true about Sudoku?
A. Sudoku wasn’t invented in Japan.
B. It was The Times that first printed Sudoku in the newspaper.
C. Each grid has more than one numbe
r.
D. It became popular around the world in 2005.
54. In the puzzle above, what should “X” be?
A. 5. B. 4. C. 3. D. 1.
55. What should “Z” be in the puzzle?
A. 8. B. 5. C. 2. D. 4.