Can dolphins talk ? They can't talk with words, but they talk with sounds. They show their feelings with sounds.

 Dolphinp travel in a group. We call a group of fish a“school". They don't study, but they travel together Dolphins are mammals, not fish, but they swim together in a school.

 Dolphins talk to the other dolphins in the school. They give information. They tell when they are happy or sad or afraid .They say "Welcome” when a dolphin comes back to the school. They talk when they play.

 They make a few sounds above water They make many more sounds under water. People cannot hear these sounds because the sounds are very, very high. Scientists make tapes of the sounds and study them.

 Sometimes people catch dolphins for a large aquarium. People can watch the dolplains in a show Dolphins don't like to be away from their school in an aquarium. They are sad.

 There are many stories about dolphins. They help people. Sometimes they save somebody's life. Dolphin meat is good, but people don't like to kill them. They say that dolphins bring good luck. Many people believe this.

A. Practice makes perfect.
B. Every minute counts.
C. Failure is the mother of success.
D. A good beginning is half done.
E. It is never too old to learn.

     With the change of different seasons, people will need different kinds of clothes. When school begins in autumn, it is cool. So at this time of year, people often wear something such as shirts, coats and pants. Winter usually comes in December. It is very cold in the last two months. And people should wear warm and heavy clothes. Jackets, sweaters, hats, and gloves can also keep people away from the cold weather. Spring is usually from March to May. In spring, the weather changes again and gets nice and warm. People begin to wear cool clothes. With the summer months coming, people often wear shorts, T-shirts or something else to keep cool. It gets very hot in July and August. Don't forget sunglasses and sunshades(遮阳伞), for they are both what you need in the hot sunny season. 

    Question: I'm 15 and I've been having trouble sleeping at night. It usually takes me 2 to 4 hours to get to sleep.{#blank#}1{#/blank#} I can't focus on my lessons at school. Please help me!

    Answer: If you are a person who doesn't regularly get a good night's sleep, you are not alone.{#blank#}2{#/blank#} Here are some tips for helping you get a good night's sleep.

    Keep regular hours

By keeping regular hours your body and mind know what is coming up and can start to prepare for you to sleep.{#blank#}3{#/blank#} If you can't go to bed at a regular time, then make sure you get up at a regular time. So after a late night you wake up tired, and it forces you to go to bed earlier.

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    I know, you hear this about everything from heart health to losing weight, but exercise really does do you a world of good. However, don't do it too close to going to sleep. It is better to do it about an hour after dinner.

Relax before going to bed {#blank#}5{#/blank#} In fact, when you lie down to go to sleep, your mind is going to be thinking about the programs you have been watching. Instead, take just 20 or 30 minutes before bed to read or sit, anything that gets you to slow down and gives your mind a rest!

    Since 1963, many female space explorers have followed Russian astronaut Valentina Tereshkova. {#blank#}1{#/blank#}.

    In 1983, Sally Ride became the first American women in space. Her team carried out scientific experiments in space and put two communications satellites in space. Satellites make it possible for us to communicate immediately with each other across the world through TV, radio and telephone.

    {#blank#}2{#/blank#}. During her task, she discovered important information about the sun's energy and how it affects the climate in very hot and very cold places on Earth. She also took photographs of Earth and measured air pollution.

    In 1992, Mae Jemison became the first African-American in space. During her task, she did scientific experiments using the weightless atmosphere.{#blank#}3{#/blank#}, so everything floats! Dr. Jemison's experiments gave important information about the human body to produce better medicines and healthcare.

    In 2012, Liu Yang became the first Chinese women in space.{#blank#}4{#/blank#}, which showed how astronauts can survive and stay healthy in space. The conditions in space are very hard on the body and space medicine helps astronauts work safely.

{#blank#}5{#/blank#}.

A. There is no gravity (重力) in space

B. She did experiments in space medicine

C. We believe there will be more and more female astronauts in the future

D. Let' s look at the tasks of four female astronauts to find out what they do in space

E. In 1984, Kathryn Sullivan became the first American women to walk in space

    Last Friday, there was a talent show in our school. A lot of students took part in the show. Tom introduced every student on the stage. At the end of the show, the head teacher, Mr. Smith was asked to present the awards. He said, “Dear teachers and students, I'm happy to be here and present the award for today' talent show. You all did a good job.”

    “There are 3 awards—the Best musical Performance Award, the Most Interesting Show Award and the Beast Performer Award. It was very difficult to choose the winners. You are wonderful! You are great!”

    “The Best Musical Performance Award goes to Mary. She is very good at playing the drum. The Most Interesting Show Award goes to Mike, the Best Performer Award goes to Daniel. Congratulations to them!”