I heard a story about a famous scientist who had made several very important achievements.

What made him   41   from others?

    He said it all came from   42   that happened when he was two years old. He tried to  43 

a bottle of milk away from the fridge, but the slippery(光滑的) bottle fell, spilling its milk all over the   44   floor.

    When his mother came in,  45   shouting at him, she said, “Robert, what a great mess(一团糟) you have made! I have never seen such a big puddle(水坑) of milk. Would you like to get down and play in the milk for a few minutes   46   we clean it up?”

    Indeed, he did. After a few minutes, his mother said, “Robert, when you make a mess like this, you have to clean it up at last. So,   47   would you like to do that? We would use a towel or a mop. Which do you prefer?” He chose the towel and together they cleaned up the milk.

    His mother then said, “We had a failed   48   in how to carry a big milk bottle with two small hands in the kitchen. Let’s go out and fill the bottle with water and see if you can   49   a way to carry it without dropping it.” The little boy learned that if he held the bottle at the top near the lip(杯口) with both hands, he could carry it without dropping it.

    This scientist then said that it was at that moment that he knew he didn’t need to be afraid to

  50  .So, what have you learnt from the story?

1.A. serious          B. similar             C. different    D. important

2. A. an experience     B. advice             C. a promise   D. an idea

3.A. pass             B. bring             C. drink             D. take

4. A. kitchen          B. bedroom           C. bathroom         D. living room

5.A. from            B. with               C. because of        D. instead of

6.A. after             B. before             C. as soon as      D. since

7.A. when            B. what              C. how              D. why

8. A. experiment        B. condition          C. survey      D. research

9.A. look             B. discover           C. recognize    D. develop

10. A. clean the floor     B. spill milk          C. make mistakes     D. realize mistakes

Eating in space is different from eating on the earth. The food that astronauts carry with them does not look like the food you eat.
Some food is carried in closed bags. It is cooked and frozen before the astronauts get it. All the water is removed from the food. In the spaceship, the astronaut puts the water back. He “shoots” hot or cold water into the food bag with a special gun. He eats the food through a small hole in the bag.
Other foods come in bite sizes. The astronaut puts a whole piece in his mouth at once. There can be no crumbs. Crumbs would float around the spaceship and get in the way. Meat and cakes often come in bite-size pieces.
Astronauts cannot drink water from open cups. The water would float in drops in the spaceship. The water is put in the special gun. The astronaut shoots the water into his mouth.
【小题1】Some food carried in the closed bags by astronauts is ________.
A. cooked and frozen      B. full of water            C. raw
【小题2】Astronauts can’t drink from open cups because__________.
A. the water would float in drops around the spaceship
B. the water would spill all over their foods
C. crumbs would float in the cups
【小题3】The main idea of the passage is that __________.
A. astronauts cannot eat or drink in a spaceship until they come back to the earth
B. eating and drinking in the spaceship is a special problem
C. there is more food and water in space than on the earth

Laboratory work is your chance to learn science first-hand. It can be fun but you must be careful to prevent injury. Listen closely when your teacher reads and explains the rules before your first lab lesson.