Thousands of years ago, the kings of Egypt built strong tombs for themselves. Over these tombs they built pyramids. They thought their bodies would be well kept in these tombs until they could come back to life. They also hoped the world would look on the pyramids as monuments to them and would remember them forever.

   There are about 80 pyramids in Egypt. But the Great Pyramid is the biggest of all. It is nearly 5, 000 years old. It is about 137 meters high today, but it was once higher. It is made of 2, 300, 000 huge stones. Most of them are higher than a man and weigh about two and a half tons each. Some weigh as much as fifteen tons. It took more than 100, 000 men twenty years to build the Great Pyramid. 

When you look at the pyramids, you can't help wondering how the Egyptians were able to build them thousands of years ago. How did they cut, carry and lift such huge stones? Each stone fits so well, yet they didn't have our modern machines! Scientists have studied the pyramids, but nobody can tell just how the Egyptians built them so long ago.

   Inside the pyramids are the rooms for the bodies of the kings and queens. There are lots of wonderful treasures in the pyramids, too. Thieves have broken into some of the pyramids and taken away many of the treasures to foreign countries. They have even stolen the mummies. Today some of the mummies and treasures are on show in museums in different countries. When the kings had the pyramids built for them, they perhaps never thought this would happen.

    Who are (A)_ at science in your class, girls or boys? Nowadays, girls start to show more interest in science, technology, engineering and math (STEM) subjects, according to a recent study by Cambridge Occupational Analysts (COA), UK.

    In the study, last year, (B) over 20,000 students who were in their final year in high school were surveyed. The number of girls considering university courses in STEM subjects has been larger than that of boys. Over a fifth of the girls surveyed said they were considering related jobs, (C)_ engineering and technology. Interest has also risen in mechanical (机械学的) engineering, electrical engineering and the sciences.

     (D)_.In the past, there were not nearly as many women as men  (E)_ STEM subjects or working in STEM related fields. Only 13% of people who graduated from university with STEM degrees were women. Now, there are about 22%.(F) In the past, only one eighth of the STEM jobs were held by women. This was partly because of the stereotype (刻板印象) that men are more suited to this work than women. Now it has been (G)_. Over 20% of the engineers are women in the UK.

    In fact, STEM subjects are fun and exciting. Studying science can benefit (使……受益) girls. “It opens girls up to fascinating careers,” Niki Yates, manager of GSK's UK Business, told The Daily Telegraph. She says(H) it is important to encourage young women to do these jobs. They will receive higher pay in these areas. More women in work also helps the economy grow.

    Tom and Mike are good friends. They are kind to children. They want to find summer jobs. One day Tom tells Mike that Beidaihe Kids Summer Camp needs help with sports, music and computers. They are both very glad to hear(听说) this.

    Tom can play basketball and volleyball, and he can swim, too. Mike can play the violin, the trumpet, the drums and the guitar. Tom and Mike like computers very much. Can they join the Summer Camp?

    The digital(数字的)A report in a newspaper says that school accidents, such as food poisoning(食物中毒) fires, electricity and traffic, kill more primary and middle school students than anything else. So we must learn how to protect ourselves better. Here are some tips for keeping safety in mind every day.

    On our way home or to school Wait for the green traffic light, and look left and right before we cross the road, we'd better war bright-color clothes, so the divers can see us easily. Don't believe in strange people in the street.

    At school: When students around us begin to push other, we need to stand sill and try to hold onto something, or stay in a comer until the crowd(人群) leaves. If we fall down in crowd use both hands to cover the head. Lean(斜靠)to one side, curl up(蜷缩)our body and bend(弯曲)the legs.

    In a fire: Stay calm. Leave the classroom quickly under the directions or the teachers. Smoke can be more dangerous than fire, so use a piece of cloth to cover our mouth and nose. What will we do if the clothes burn? Remember not to run! Drop and fall to the ground. Then roll! It will make the fire go out.

    For eating: Wash fruits carefully before eating them. Check the expiration dates (保质期)on the packages of the snacks, and if it looks or smells bad, don't eat it.

    Although the world develops much faster and better, the resources on the earth get fewer and fewer. In order to protect them, something must be done.

    _______________. Water is the source of life. No water, no life. So it's very important for us to do so.

Not only should we protect drinking water and stop polluting it, but also make full use of it.

    _______________. It is crucial. We can't imagine what the life will be like without it Everyone should do his best to save it. Don't forget to turn off the lights or other electric machines when we finish working.

    _______________. They are useful. Please stop cutting them down and use recycled paper instead.

Make our world a green one to live in.

    _______________. Plenty of them can be recycled like cans, paper, bottles, and so on.

    The volunteers often teach people how to recycle, and gave us tips on how to save energy, and we should work together to protect the resources and improve the environment around us.