the Four New Great Inventions
1
高铁 让人们的出行更方便快捷，请你写一篇短文简单介绍武广高铁。
基本情况：
1. 始建于 2005 年，2009 年 12 月 26 日开通运营，干线全长 1068 公里；
2. 途经湖北、湖南和广东；
3. 列车时速高达 350 公里/小时，目前世界上最快。
主要优点：
1. 武汉至广州仅需 3 个小时，比先前减少 7 个多小时；
2. 高铁列车设施齐全，安全舒适。
美中不足：
1. 票价偏高；
2. 车站离市中心较远。
First built in 2005, the Wuhan-Guangzhou high-speed railway went into operation on December,26th,2009. Overall length of its main line is 1068 kilometers, and it goes through the following three provinces: Hubei, Hunan and Guangdong.
The speed of the Wuhan-Guangzhou high-speed railway is 350km/h,the fastest speed in the world now, which makes it only three hours needed from Wuhan to Guangzhou, seven hours less than before. Besides, there are all kinds of facilities in the train, which make your trip safe and comfortable, so it is more humanitarian.
However, the only fly in the ointment is that the train fare is too high and the station is quite far away from the downtown area.
2
随着微信，支付宝、银行 APP 的迅速发展，通过网络进行的货币支付或资金流转给我们的生活带来了哪些好处呢?请你以 移动支付 的好处为主题写一篇英语短文。
The Advantages of Online Payment
Online payment has been advocated around the world, which is the future way to pay bills. In China, Alipay is popular everywhere, even the small business can be finished by this advanced way. People play the joke that they don’t need to worry about the lack of cash. The advantages of online payment are obvious.
Firstly, it saves people’s time to pay bills. The use of online payment is carried out with a smart phone. Especially when we go to the supermarket, there are always a lot of people waiting in the long line. The process of costing customers’ time is to take out the cash or use the credit card, because both customers and cashiers need to count the money or check the bills. But now the cashier can just scan the phone and the bill will be paid and the customer can check quickly.
Second, people don’t have to worry about getting the fake cash. Many years ago, people were easy to get fake money as they received the change. But now, as the cash have been used less, people won’t receive the fake cash without paper money. With the development of new applications, our life will be much convenient.
3
假定你是红星中学初三学生李华。你的美国朋友 Jim 在给你的邮件中提到他对中国新近出现的一种共享单车“mobike”很感兴趣，并请你做个简要介绍。请你给 Jim 回信，内容包括：
1. 这种单车的使用方法(如：APP 查看车辆、扫码开锁等);
2. 这种单车的优势;
3. 你对这种单车的看法。
注意：1. 词数不少于80;
2. 开头和结尾已给出，不计入总词数。
提示词：智能手机 smartphone，二维码 the QR code
Dear Jim,
I’m writing to tell you more about the new form of sharing bike--mobike mentioned in your latest letter.
It’s very convenient to use if you have a smartphone. What you do is to find a nearest mobike through the APP, scan the QR code on the bike, and enjoy your trip.
Compared to other forms of sharing bike, the greatest advantage of mobike is that you can easily find one and never worry about where to park it. It is becoming a new trend as a means of transportation, which relieves the traffic pressure and does good to the environment as well.
Hope to ride a mobike with you in China.
4
随着互联网的发展和普及，网络购物在中国也变得越来越普遍了，甚至已经成了我们日常生活的一部分。相信同学们身边一定有不少同学已经通过网络进行购物，比如淘宝网等，但是网络购物究竟有何利弊呢? 请写一篇短文，谈谈 网上购物 的好处与坏处。
With the development of the Internet and the popularization of computers, shopping on the Internet has become a commonplace in our life. Here consumers can buy almost everything they need.
Shopping on the Internet has a lot of advantages, of which the most important is perhaps its convenience.People don't have to waste a lot of their energy and precious time to go from one shop to another to choose the commodities they like. This is especially desirable to the old, the sick and the busy people who cannot go to the shopsin person（亲自）. The goods come in all shapes, sizes and colors on the Internet. All they need to do is to sit in front of their computers andclick the mouses（点击鼠标）. The commodities they order will bedelivered（运送）to them promptly.
However, shopping on the Internet also has its disadvantages. The first disadvantage is thatthe consumers can't s