Xinhua News Agency reported 3,000 yellow school buses started their service in Chongqing1the end of 2011. These school buses are like the ones in the US as we usually see on TV and in 2 .

    The school buses are bright yellow in colour. They are 3than the army's cars. They are from the US. The yellow school bus has a big 4.This keeps the students safe when other cars crash into the school bus. The bus also has some   5devices(设备), such as warning lights and a stop signal arm.

    In China, school buses became popular in the past few years. On the bus, except(除了) the bus driver, there is always a 6whose duty is to watch the students. Children usually rest on the bus. Some of them also recite texts. School buses in China are not 7.The fee is different from school to school.

    Deserts are found where there is little rainfall or where rain for a whole year falls in only a few weeks' time. Ten inches of rain may be enough for many plants to survive (存活) if the rain is spread throughout the year, If it falls within one or two months and the rest of the year is dry, those plants may die and a desert may form.

    Sand begins as tiny pieces of rock that get smaller and smaller as wind and weather wear them down. Sand dunes (沙丘) are formed as winds move the sand across the desert. Bit by bit, the dunes grow over the years, always moving with the winds and changing the shape. Most of them are only a few feet tall, but they can grow to be several hundred feet high.

    There is, however, much more to a desert than sand. In the deserts of the southwestern United States, cliffs (悬崖) and deep valleys were formed from thick mud that once lay beneath (在……之下) a sea more than millions of years ago. Over the centuries, the water dried up. Wind, sand, rain, heat and cold all wore away at the remaining rocks. The faces of the desert mountains are always changing--very, very slowly--as these forces of nature continue to work on the rock.

    Most deserts have a surprising variety of life. There are plants, animals and insects that have adapted (适应) to life in the desert. During the heat of the day a visitor may see very few signs of living things, but as the air begins to cool in the evening, the desert comes to life. As the sun begins to rise again in the sky, the desert once again becomes quiet and lonely.

Have you ever wondered what an American high school is really like? This article will describe a typical (典型的) high school and its students.

A typical American high school has several large buildings and enough space for about 1,500 students. Every student is given a locker. When students first arrive at school, they go straight to their lockers to put away or get their textbooks and to hang up their outdoor clothes. As American textbooks are expensive, students would rather loan (租借) than buy them. Students must pay back if they lost any of them.

American students have different types of school transport. They usually take a yellow school bus or walk to school if they live close enough. Sometimes their parents drive them to school.

When they turn 16 years of age, most take a free driving class at school for one term. If students' exam passing grades in the class and also pass their state driver's exam, they can begin driving themselves to school.

Each day, students take six or seven classes. They must take science, math, English and social studies. They can choose art, homemaking, fashion design and other classes. In some schools students are required to take one or more of the following special classes: health education, physical education or foreign language studies. Students move to different classrooms for each subject. This is because cache teacher has their own classroom. There is a five-minute break between classes, to give the students the time to hurry to their next class.

The regular school day usually ends early in the afternoon. After school more than half of the students take part in after-school activities. These activities include sports, specially football, basketball, baseball and soccer or clubs, such as yearbook, speech, school newspaper, photograph or student government.

Title: {#blank#}1{#/blank#} in an American High School

"Spell ‘champion,'" Scott told his elder sister.

"C-h-a-m-p-i-o-n."

Unsure about it, Scott still cheered, "You'll win the spelling bee (拼写大赛)!"

Lucy thanked, happy but worried, wondering if her dog Senator would be looked after well when she was away for a week.

"Dad and I will keep him perfectly!" said Scott, dreaming of getting his own pet if he could prove himself.

It was time to leave. Dad wished Lucy good luck.

"See you in a w-e-a-k," Scott said.

"W-e-e-k," Lucy corrected him and said, "Bye!"

Each morning Scott woke up early to feed Senator, leaving a note to remind Dad. After that Scott continued to sleep.

A week later, Lucy returned and told the family she failed. Then she found her dog sick. Scott felt sorry but confused, because he'd been a strict direction-follower.

They came to the animal hospital. After the examination, Lucy was angry, "A terrible stomachache! How could Senator put on two pounds in such a short time?"

Dad said, "I only fed him two scoops of dog food every morning."

Scott shouted, "Dad! You fed him again? Didn't you read my note? It says I've fed him!"

It took Lucy a while to understand before asking Scott how to spell "fed".

"F-e-e-d? Scott! ‘Fed' is spelled f-e-d. But your note says f-e-e-d, telling Dad to feed the dog!"

"So Senator was fed twice?" Dad asked.

Scott said sorry, "I just wanted to be responsible so I could get a dog for my next birthday."

"OK. I'll teach you how to spell correctly and train myself for next year's spelling bee," Lucy said.

"You have a few months to practice before you get one for your birthday," Dad added. 

Scott burst into laughter.

"Having a little brother isn't so bad," Lucy told Senator, "if he can help f-e-e-d!"