They _____ on the program for almost one week before I joined them and now we ____ on it as no good results have come out so far.
A. had been working ;are still working
B. had worked ;were still working
C. have been working ;have worked
D. have worked ;are still working
____ how others react to the book you have just read creates an added pleasure.
A. Hearing B. Hear
C. Having heard D. To be hearing
The driver was at ____ loss when ______ word came that he was forbidden to drive for speeding.
A. a; the B. ; /
C. the ; the D. a ; /
一则“一位9岁男童因扶起摔倒的老太太而遭讹诈”的网帖引起热议，老太太坚持说小男孩吧她撞到了，向其索要治疗费用，幸亏当时有路过的群众作证，要不道德何在？这件事让这个小男孩的父母很气愤。请你根据以下要求，写一篇英语短文：
1、简述事件的内容
2、你的看法。
注意：1、词数120左右；
2、可以适当增加细节，以使行文连贯。
阅读下面短文，根据以下提示：1）汉语提示，2）首字母提示，3）语境提示，在每个空格内填入一个适当的英语单词，并将该词完整地写在右边相对应的横线上。所填单词要求意义准确，拼写正确。
Nowadays square dancing is getting more and more popular with Chinese people in many cities. Some public places are usually 1. c
with dancing lovers in the morning or evening. Every coin has two sides. Now people have thrown doubts on this hot 2. i .
Honesly speaking, most people are in3. of square dancing, considering it a green form of exercising to keep fit. In addition, it is money-saving. What’s more, square dancing 4. (变化) in performance style, 5. gives people a lot of fun and can help refresh themselves.
On the contrary, some others hold 6. (批评) opinions. They argue that the happiness of those dancers is built on the pain of others who have to suffer from the loud music and noise. 7. their peaceful life disturbed, they are angry and 8.e run into conflict with the dancers.
In my view, square dancing is certainly beneficial to the whole society 9. long as the dancers show concern for others’ needs. What’s more, our government should10.s no effort to build more recreation centers for people.
Look, this is the first plane in the world to be created using the new technology of “3D printing”. The airplane was built using only a computer-but it can fly at a speed of 100mph and has a two-meter wingspan.
It was produced using a special nylon laser printer that builds up something layer-by-layer. The parts were made separately and attached using a “snap fit”（搭扣） technique so the aircraft could be put together without tools in minutes.
No fasteners(扣件) at all were used in the manufacture of the plane. Unmanned and electrically powered, the plane can travel in near silence and is also equipped with a small autopilot system. The special production process used is known as “laser sintering(激光烧结) “and allows the designers to create shapes and structures that would normally include costly manufacturing techniques. This technology allows a highly-tailored aircraft to be developed from your own design to first flight in days, while using traditional materials and techniques would take months. And because no tooling is required for manufacture, major changes to the shape and scale of the aircraft can be made with no extra cost.
Professor Jim Scanlon, who led the team, said, “The process allows the design team to revisit historical techniques and ideas that would have been too expensive using traditional manufacturing.” He added, “This form of structure is very firm and lightweight, but very complex. If it was manufactured traditionally it would require a large number of individually tailored parts that would have to be connected or fastened at great expense.”
The new printed plane is known as the Southampton University Laser Sintered Aircraft-or SULSA for short-and is part of a wider project using cutting-edge manufacturing techniques. The University of Southampton has been at the leading position of Unmanned Aerial Vehicle development since the early 1990s.
1. What does the passage maily talk about?
A. New Designed Airplane with New Techniques.
B. Scientists Create Aircraft with High Speed.
C. Revolut ionary Breakthrough of 3D Printer.
D. The World’s first 3-D printed Airplane, SULSA.
2. How does the 3-D printed plane fly?
A. A pilot controls it using a remote control.
B. It should be controlled by “laser sintering”.
C. It should be controlled by an autopilot system.
D. A pilot with high techniques controlled it.
3. Which of the following is NOT advantage of the plane?
A. It only requires simple and cheap tools.
B. It is manufactured in quite a short time.
C. It produces little noise while flying.
D. It needn’t extra cost if changes are made.
4. Accoding to Professor Jim Scanlon, plane manufacturers can
with their techniques.
A. copy earlier planes to study their techniques
B. connect and fasten tailor parts for real planes
C. produce firmer and lighter real planes
D. find differences by studying the traditional ones
