One fresh sunny day, while I was swimming in the water, I felt something special going through my gills(鳃).It was a different kind of water. I also found many of my friends became sick. Some of them were dying. I was starting to worry because I didn't want to get sick or die. I was also thinking about what I should do to save my friends, so I decided to do some research for my underwater life.

    My research started. At first, I noticed there were many bottles, cans and other kinds of rubbish in the water. Then I went on… I got closer and then I tasted many different kinds of liquid(液体).(A)To my surprise, I noticed a man pouring some liquid into the water. Others also saw him doing so and they decided to follow him. I hated it! I wish I could have told them that it was killing us!

    I think it is so stupid for people to do this to the earth that they are living on! I can't understand (B)      they are doing this. Humans should stop throwing waste into the lakes or rivers. I want to have a normal life with my friends. People should stop being so selfish and care about the environment. If they do that, everyone will be fine and will have nothing to worry about. I suggest they follow my words. If so, I believe everyone will be able to live a happy life.

    Coral reefs(珊瑚礁) are found in warm ocean(海洋）waters all over the world. Coral reefs are important because they are home to many ocean plants and animals. They also help keep the sea clean. As well, they provide（提供）food, jobs and a special place to visit for millions of people all over the world.

    There are three main kinds of coral reefs: fringing reefs, barrier reefs and coral atolls. Coral reefs are formed（形成）by tiny animals called coral polyps.

    When coral reefs are healthy, they keep the ocean environment balanced. But many things that humans do are making the reefs sick. Some reefs are even starting to die.

    We should protect coral reefs and help them become healthy again.

每题答案不超过8个词。

    Conan Doyle, a famous writer, the creator of the famous character Holmes, was telling a story about himself in which he was the laughing-stock（笑柄）.

    {#blank#}1{#/blank#} When a taxi pulled up, he placed his suitcase in the car and took a seat next to it. 'Where can I take you, Mr. Doyle?" asked the taxi driver politely. Doyle was very surprised. He asked, {#blank#}2{#/blank#}"The driver answered, 'No, sir, I have never seen you before."

    Doyle couldn't believe and asked him how he knew he was Conan Doyle. {#blank#}3{#/blank#} People who return from Marseilles always come to the taxi-stop. Your skin tells me you have been on vacation.{#blank#}4{#/blank#} Your clothing is very English, and not French. And so, I deduce（推论） that you are Sir Conan Doyle," said the driver.

    Doyle was astonished by the driver's words and said, "This is truly amazing. Your are talented and a real-life counterpart（对应的人） to my creation, Holmes." "Thanks to another thing," the driver said. "What is that?" {#blank#}5{#/blank#}"

A. Have we met each other before?

B. One day he was waiting at a taxi-stop outside the railway station in Paris.

C. This morning's paper had a report about you being on vacation in Marseilles.

D. Your name is written on your suitcase.

E. Your right finger suggests to me that you're a writer.

    When it comes to the letter grade on your test or homework, you might notice that there is no letter E. Have you ever thought about why that is so?

    In the A. B. C. D and F grading system, the first four letter are typically considered passing grades. An F in this system simply stands for "fail". The word "fail" happens to start with the letter F, which seems to leave out the letter E, The fact of the matter is that any letter can mean "not-passing" or "fail". Some schools have U grade for unsatisfactory", or I grade for "incomplete."

    Even with all this said, we should also point out that E grade actually has been used pretty commonly throughout the history of letter grades in the US.

    The first college in the US to use a letter grading system like the ones we use today is Mount Holyoke College. In 1897, they began to use the following grading scale:

A: 95-100% (excellent)   B: 85-94%(good)   C: 76-84%(fair)

D: 75%(barely passed)   E: below 75%(failed)

    We can see the inclusion of E instead of F.

    Gradually, the letter grading system became more popular throughout the US. However, many schools decided to drop the E grade and go straight to F. There is no evidence(证据)to really support this, but one possible explanation is that teachers were worried that some students and parents might mistake E for "excellent".

    Why do we have letter grades? Well, part of the reason is that they made grading simpler during n time of great change for schools. As the 20th century began, growing cites and an increase in immigration led to larger school classrooms. Most teachers at that time thought this new letter grading system was an easy, fair and clear way to grade students.

    Today, more and more people argue that letter grades don' t fully reflect(反映)student learning. However, as teachers try to improve grading methods, many parents continue to favor the letter grades they got as kids. They are familiar(熟悉) and easy for parents to understand. So while they might not be perfect, the letter grades probably aren't going away any time soon.

    Hans Christian Andersen, a great Danish(丹麦的) writer, is very famous for his fairy tales. He wrote a lot of best-known stories such as The Emperor's New Clothes and The Ugly Duckling. His fairy tales have brought happiness to children across the world. The tales have versions(版本) of over a hundred languages.

    Andersen was born in Denmark in 1805. When he was still a young boy, he was already very clever and imaginative(富有想象力的). He created a small toy theatre and made clothes for his puppets(木偶). He also loved reading.

    After his father died, he learned to be a tailor (裁缝). Later he worked in a factory. At the age of fourteen, Andersen moved to the capital of Denmark to become an actor and gave performances(演出) in the Royal Danish Theatre. However, his voice changed when he grew older, so the job had to stop. Then he began to write poems and fairy tales.

    In the spring of 1872, Andersen fell out of bed and didn't get well again. He lived until 1875 and died peacefully in the house of his close friend.

    Hans Christian Andersen is very famous for his {#blank#}1{#/blank#}. He created a small toy theatre and {#blank#}2{#/blank#} for his puppets. Andersen moved to {#blank#}3{#/blank#} become an actor. Andersen couldn't give performances because his {#blank#}4{#/blank#} in 1872, Andersen. {#blank#}5{#/blank#} And didn't get well again.

    Think about this question: what would it be like if there was no other way to get around and we could only use our feet? {#blank#}1{#/blank#} Also, we would spend a lot of time on the way before we got somewhere. So we really need to thank all those modes of transportation (交通方式(.

    {#blank#}2{#/blank#} The earliest boats were canoes(独木舟). Later there were sailing boats(帆船), but they could only be used in one direction. {#blank#}3{#/blank#} 

In the 19^th century, some modes of transportation that we know today came out, such as the bike, the train and the subway. {#blank#}4{#/blank#} As it got easier to travel, people wanted to get to places faster. In the early 20^th century, the first plane in the world came out. By the 1970s, many families in the UK had a car.

    {#blank#}5{#/blank#} They all make our traveling easier and faster and help us see this world better.