综合性学习。

　　学校开展一次以“看漫画，学语文”为主题的综合实践活动。下面是这次活动中的一些问题，请你参与解决。

    Some people have very good memories and can easily learn quite long poem（诗歌）by heart. Some people have1memories and can only2things that they have said again and again.
    The3English writer Charles Dickens said that he could walk down 4 street in London and then tell you the name of every shop on5sides of the street. Great men in the world have wonderful memories.
    A good memory is a great help in learning a language. Everybody learns 6language by remembering what he hears7he is a small child. Some children live with their parents in foreign countries and they seem8two languages as9as one. In school it is not so easy to learn foreign languages10students have little time11 it and they are busy with other subjects as well.
    A man's mind is quite like a camera but it12photos of what we see and it can also take photos of what we feel, hear, smell and taste. When we take a real photo13a camera there is much work14before the photo is finished and ready to show to our friends.15 the same way there is much work to do before we can keep a picture forever in our mind.

如图，在直角坐标系中，△OAB和△OCD是位似图形，O为位似中心，若A点的坐标为（1，1），B点的坐标为（2，1），C点的坐标为（3，3），那么点D的坐标是（　　）

下面是小丹同学与好朋友小雪在QQ上的聊天内容，你认为不可信的是