What are they doing for holiday?They are happy because they are on holiday.
Mary is visiting her aunt in Paris. It is a very famous city. And it is a good place to go shopping! Tom is fishing in the lake. Because the water is very clean, there are so many fish in the lake. Simon and Bill are good friends. They are going bike riding together in the beautiful countryside (农村，乡下). It's relaxing. Jesse is taking some photos in the park. The park is very beautiful, and it's a good place to take photos.
It's good for your health to have a rest. And it can help you work or study better, too. I hope everyone is having a good time.
信息归纳：阅读短文，根据短文内容，选择正确的选项，完成下面表格。

根据短文内容回答下列问题。

    Camping in your backyard is full of fun, whatever your age is. It's great for keeping us relaxed. It offers chances to check the night sky and to be noisier than usual. It lets us have friends over to stay who might not fit inside the house! Follow these instructions and you'll have a night you'll never forget!

    Put up your tent.

    Depending on the number of family members and guests, you may need more than one tent. Tell your friends to bring their tents if needed. Follow the instructions or check out the articles on how to put up a tent on the Internet.

    Prepare your bedding.

    You'll want your guests to be able to relax in comfort. Put something soft to lie on on the floor: A blow-up air mattress or thick comforters may work well. Fill the tent with soft toys and blankets(毯子). Have lightweight sleeping bags or cotton blankets. They are especially important if you live where the night temperatures drop greatly.

    Prepare a seating area.

    If you have a picnic table, that would work best. If not, set up a few chairs and a small table to set out drinks and food. A simple choice is to lay out a blanket in the sun, so that your friends can eat and talk. Be sure the grass isn't wet!

    Make memories.

    Plan some activities. You're camping in the backyard, so it's time to make the most of being outdoors.

    Have a camera nearby to take silly photos of you, your family members, and your friends. Take one large group shot with everyone smiling and laughing. Be sure to make copies for everyone!

    Reading is fun. When you read, would you like a paper book or an e-book(电子书)? Some people choose e-books, some love paper books, and others prefer reading both.

    Li Ming, a university professor (教授), is busy doing some research. So he is often on business. When he is at the airport or on the train, he especially loves reading e-books. He also likes reading paper books in the library for the research work. Besides, he enjoys the smell of the paper books.

    What's more, Li Ming would like to read with his family. There is a reading time from 8:00 to 9:00 each Friday evening at home. Everyone reads and shares what they learn from the books. One Friday evening, Grandma took out an old paper book and said to her grandson, “Li Lei, this is the first book your grandpa gave me. There is his name on the front page. Whenever I read it, I can get something new from his notes. And I can still remember the happy life we lived together.” Li Lei said, “But I enjoy reading e-books. E-books need no paper. Many forests will be saved.” Grandma advised, “Don't read for a long time, or your eyes will get sore.”

    Different people have different ideas about e-books and paper books. No one knows whether e-books can replace (代替) paper books or not. Somehow, books are our friends. No matter which kind of books you choose to read, you can learn more about the world through them.

    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 letters 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”．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 a time of great change for schools. As the 20th century began,growing cities 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.

    Can dolphins talk? Maybe they can't talk with words, but they can talk with sounds. {#blank#}1{#/blank#} They are mammals (哺乳动物), but they swim together in a group.

    Dolphins talk to the other dolphins in a group. They give information. They say "Welcome" when a dolphin comes back to the group. {#blank#}2{#/blank#} They talk when they play.

    They make a few sounds above water. {#blank#}3{#/blank#} People cannot hear these sounds because their pitch (音调) is very high. Scientists make tapes of the sounds and study them.

    Sometimes people catch a dolphin for a large aquarium. (An aquarium is a zoo for fish.) People can watch the dolphins in a show. Dolphins don't like to be away from their group in an aquarium. {#blank#}4{#/blank#}

    There are many stories about dolphins. They help people {#blank#}5{#/blank#} Dolphin meat is good, but people don't like to kill them. They say that dolphins can bring good luck to them. Many people believe this.

From the Other Side

Lara and Tara are twins. They look like each other, but they are very different in everything else. For example, hot food is Lara's favorite, and Tara has a sweet choice.

However, this isn't the problem with the twin girls. They always argues that the opposite one was wrong. {#blank#}1{#/blank#}, while Tara thought mornings were fresh and it was difficult to stay up till midnight.

{#blank#}2{#/blank#} To put an end to their fights, their parents decided to create a small drama. They wanted the girls to understand that they were both correct from their own point of view. Their parents covered the girl's eyes with black ribbons (带、条), and brought them to the dining room. {#blank#}3{#/blank#} Lara was asked to stand on one side of the board and Tara on the other. They couldn't see the other side of it. When the ribbons were taken away, they were surprised to see a huge board between them.

Now, their father asked Lara, "What's the color of the board?" She replied, "It's black!" {#blank#}4{#/blank#} She replied, "It's white!" The two girls began to argue again. While Lara was confident it was black, Tara was sure it was white. Then, they were asked to exchange (交换) their places. They couldn't believe their eyes. Tara, who insisted (坚持) it was a white board, saw a black one. Similarly, Lara, who argued the board was black, was surprised to see a white one. They understood that each of them was right in her own view. Most of us are like Lara and Tara. We are right most times, but insist that others are wrong!