优点：

1．可以在任何时间购物。

2．只需要一台电脑和鼠标。

3．方便比较同类产品的价格，可以省钱。

4．无论何时何地都可以收到所购物品。

……

缺点：

1．网上付款有时不安全。

2．看不到实物，也不能试穿衣服。

……

注意：

    1．不得在作文中出现你真实的学校名称和自己的姓名。

    2．语句连贯，表达准确，词数80-100。

    3．短文开头已给出，不计人总词数。

                                                                      Online shopping

There are many new ways of shopping, and online shopping is one of them.

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    Dragon Boat Festival is a fun Chinese holiday. Usually, it's in June or July. Both children and adults（大人）like this holiday.

First, there are dragon boat races. Dragon boats are very long. They have bright colours, In each boat, there are many people rowing（划）. There's also somebody beating a drum（击鼓）. The winners（获胜者）of the races can get a lot of money.

During Dragon Boat Festival, people also eat a special kind of food-rice dumplings. To make these dumplings, people prepare（准备）many things. Then they can make different flavors of dumplings. Some are sweet（甜的），some are salty（咸的）. They all taste good. People give them to friends.

On the evening of the holiday, families have a big meal together. Dragon Boat Festival is a great time for everybody.

These days, Dr. Hunt made a survey(调查) about middle school students in Guangzhou. The result shows that 18% of the students have mental(心理) problems. Some students have lots of worries and feel unhappy because they have problems in learning and getting on with people like their parents and classmates. Here are two students talking about their problems.

Chen Han, 14- year- old girl

I am very afraid of the exams. I always study the hardest in my class, but I can't get good grades. I can't think of anything when I am having an exam. And before exams, I can't sleep well for days.

Su Ning, 15- year- old boy

I do well in my studies. However, I hardly have friends. Because I'm from a poor family, I don't have enough money to buy expensive shoes and my classmates laugh at me. I always feel sad.

Many students who have problems won't go for advice or help. Some think they will look stupid(愚蠢的) if they go to see a doctor. How to help these students? Mr. Ma, an expert from Beijing has the following suggestions(建议) for students:

☆Talk to your parents or teachers often.

☆ Take part in group activities and play sports.

☆Go to see a doctor if you feel unhappy or unwell.

Have you ever imagined being able to communicate with your pets at home and have them understand everything you say？It sounds too good to be true，but scientists have started using AIto help communicate with animals. 

Professor Bake told Scientific Magazine that AI allows humans to use technology to watch and understand the sounds and signals animals communicate with so we humans can try to speak back to them. She said trying to communicate in animals' language could be better than teaching them how to use human sign language. AI is already helping us communicate with bats and bees. This could change what we know about these animals and our relationships with them. 

Professor Bake explained how Scientist Tovel had used recordings and AI to understand bats. "Bats have their own language. They often argue over food. They have different names，or 'signature calls'，" she said，mother bats lower their voice when speaking to their babies. Their voice can never be heard with human ears. But AI makes this possible because a computer can be trained to listen like a bat. "

Actually，AI has so far achieved a lot in this field. For example，the computer not only listens but also watches bees' body movement to understand what they are communicating. Bake said scientists now know how bees say things such as "be quiet" or "stop". Scientist Landlof even created a robot Honeybee that entered a bee's home and was able to communicate with other bees when it wanted them to stop doing something or fly.