Q: When I was 14, I decided to make some pocket money by mowing lawns in summer. I worked hard because that was my first part-time job. After working for one week, Mr Miller said that he had no money for me. Oh, dear! He wouldn't pay for my work! That surprised me greatly. I argued with him, and then I went back home. My parents told me not to complain about Mr Miller. He was in difficulties. Then my mother call up Mr Miller and they talked about something on the phone. A few days later, my mother asked me to return to Mr Miller's garden, because he was too weak to look after it. When I came back, Mr Miller said, "Sorry, I have no money, but I can do something for you." He played CD for me. Hearing the beautiful music, I was so interested in it that I forgot the money and did the work with pleasure. At last, Mr Miller gave me a ticket to a concert. After that, I became very interested in music. And now, I have been a popular musician. I should thank Mr Miller greatly. According to the passage, we can learn that _ . A) the author's mother was kind B) Mr Miller was so bad that nobody liked him C) the author was too poor to have pocket money D) the author had experience to work in the garden
A: A

Q: In fall 2006,the National Basketball Association (NBA)started using basketballs made with synthetic ,or man-made ,material instead of leather .They made the change be- cause they wanted every basketball they use to feel and bounce the same.Not all leather balls are exactly alike in weight or how they bounce,but the synthetic balls are. However,some players complained right away that the new balls bounced differently and were actually harder to control than the leather ones. Physics helped answer questions about why the new balls felt different.For example,the scientists studied friction ,which in this case affects the ability of a player to hold onto a ball."The greater the friction,the better it will stick to his hand,"explains a scientist. Tests on both wet and dry balls showed that while the synthetic ball was easier to hold onto when dry,it had less friction and became much harder to hold onto when wet.That's because _ stays on the surface of the synthetic balls but gets taken into the leather balls. The scientists also tested bounce and found that the logo printed on the new balls made their surface uneven and caused them to bounce a little strangely com- pared with the leather balls. In January,the NBA went back to using the leather balls.They aren't perfect,but for now,that's just the way the ball bounces. It can be inferred from the text that _ . A) a synthetic ball takes in water faster than a leather ball B) a leather ball is more difficult to make than a synthetic one C) a synthetic ball is more expensive than a leather ball D) a leather ball may increase its weight during a game
A: D

Q: Dear Mary, I must go to see your grandparents now.I prepare these things for you.Your dictionary is in the bookcase.Your schoolbag is on the sofa.Your pencil box,notebooks and your school card are in the schoolbag.Your jacket is on the chair.Don't _ your watch.It's on the desk. Love you. Mom What's not in the schoolbag? A) The notebooks B) The school card C) The pencil box D) The pen
A: D

Q: Snowflakes! You can catch them on your tongue or use them to make a perfect snowball. But have you ever thought about taking pictures of them? Ken Libbrecht did. He is a physics professor from California. Although the weather in California is usually warm and sunny, Ken's hobby is taking pictures of snowflakes. He travels to cold areas like Alaska and Canada to find snowstorms and take pictures of the snowflakes. "They are often beautiful, and every snowfall brings new surprises," says Ken. Ken takes pictures of snowflakes with a high-quality digital camera. He uses a microscope to make the tiny snowflakes larger. To get the best images, Ken built a special photo-microscope just for snowflakes. He collects flakes by letting them fall onto a piece of foam board . The pictures must be taken outdoors, so Ken wears lots of clothes to stay warm. But his fingers often get cold, because it's difficult for him to take pictures of a tiny snowflake with gloves. Each snowflake has shapes and patterns that make it as unique as a person's fingerprint. The hobby of snowflake photography is also unique. Next time a snowstorm blows through your town, take a closer look at the flakes before you gather them into a snowball. See if you can notice their unique patterns. Millions of snowflakes are waiting for you! ,. Why do Ken's fingers often get cold? A) Because he doesn't wear enough clothes. B) Because he doesn't wear gloves. C) Because he likes making snowballs. D) Because there is something wrong with his fingers.
A: B