You may hear someone say, ‘It’s raining cats and dogs.’ We know it means it’s raining hard. Here is how it comes.
There are many large rats in a country. People need cats. But there are many mountains in the country. It’s hard for a plane to land (着陆）． So the cats come down by parachute（降落伞）．
In another country, the people need dogs to find people in the snow. Where can they get the dogs? You can guess. The dogs also come down by parachute.
These cats and dogs are helping the people. And the people often say it rains cats and dogs.
5. What does the sentence ‘It’s raining cats and dogs.’ mean?
A. We put the cats and the dogs in the sky.     B. It means ‘It’s raining hard’.
C. people like cats and dogs.                D. Cats and dogs are helping the people
6. Why do the cats come down by parachute?
A. Because it’s not safe (安全的).     B. Because there are many mountains in the country:
C. Because people need cats.        D. Because it’s quick to carry the cats.
7. From the article, we can know rats mean ________.
A. 大象          B. 猴子           C. 老鼠           D. 熊猫

Nick Petrella is a doctor in Montreal. He works 60 hours a week. He takes care of more than100 patients a week in the hospital and at his office. He's been a doctor for ten years.

Dr. Petrella offers lots of help to his patients. But he doesn't just tell his patients what to do.

He also sings to them on television! Dr. Petrella has his own TV show. The show is in Italian, English and French. The doctor starts the show with a song and then he explains a medical problem or disease in simple language. After that, he sings another song.

Dr. Petrella makes and performs in his own show every week. The program is very popular with his patients and with people who enjoy his singing. His dream is to perform in Las Vegas.

His favorite songs are love songs, and he has a CD of love songs that he wrote. Dr. Petrella says, “I always love to sing. All my problems are gone when I sing.” But when Dr. Petrella was young,

his father didn't want him to be a singer. So he went to a medical school.

Some people tell Dr. Petrella he can help people more as a doctor. But Dr. Petrella says he helps people when he sings, too. “1 like to make people smile. Sometimes it's difficult to make a sick person smile. Medicine and entertainment both try to do the same thing. They try to make people feel good .

Choose the best choice from A, B or C according to the passage.

1. In his TV show, Dr. Petrella _________ .

A. sings love songs he wrote         

B. sings about different diseases

C. sings and explains a medical problem

2._________ isn't used in his TV show.

A. Russian              B. English               C. Italian

3.Dr. Petrella performs in his show 10_________.

A. become famous        B. make people feel good    C- achieve his dream

4.  From the article, we can know Dr. Petrella is _____________.

A. talented and proud   B, creative but lazy    C. kind and helpful

5.  What’s the best title (标题）of the article?

A. Medicine and Entertainment  B. His Dream Came True   C. A Singing Doctor

Do you know why different animals or insects have their special colors? Colors are used mainly to protect themselves.
Why can’t some birds easily catch locusts（蝗虫）? It is because locusts change their colors together with the change of the colors of crops. When crops are green, locusts look green. But as autumn comes, locusts change to the same brown color as crops have. Some other insects with different colors from plants are easily found and eaten by others. So they have to hide themselves for lives in the day and appear only at night.
If you study the animal life, you’ll find the main use of coloring is to protect themselves. Bears, lions and other animals can’t be easily seen by hunters. This is because they have the colors much like the trees.
Have you ever noticed an even more strange thing? A kind of fish in the sea can send out black liquid when it faces danger. While the liquid spreads over, its enemies can’t find it. And it quickly swims away. So it has lived up to now though it is not strong at all.
【小题1】 From the article we learn that locusts 　　　　　　　　　.