题目

如图，直线y=2x+4与x，y轴分别交于A，B两点，以OB为边在y轴右侧作等边三角形OBC，将点C向左平移，使其对应点C′恰好落在直线AB上，则点C′的坐标为． 答案：【1】（﹣1，2）If you have dinner with people in the west, I think you must pay more attention to the table manners. Here are some good table manners for you.When you eat something, try not to make a noise or burp (打嗝) at the table. Because people think that is not polite. People will say “Excuse me” when they want to burp.Talking with food in the mouth is very rude. So you must eat the food quietly and slowly. If you eat too fast, people think you are rude too. Do not talk with others when you have food in your mouth.It is good to eat all the food on your plate. This means you like the food very much. Remember to say the food is nice. And this can make the host very happy. When you finish eating, you can place your knife and fork together.1.The topic of this passage is in the west.A. how to burp B. what to eat C. school rules D. table manners2.Which of the following is NOT good manners?A. To eat all the food on your plate.B. To eat the food quietly and slowly.C. To talk with others when you have food in your mouth.D. To place your knife and fork together after finishing eating.3.According to the passage, which of the following is good?A. To eat the food on the plate quickly.B. To tell the host that the food is not tasty.C. To say “Excuse me” when you want to burp.D. To talk with people loudly when you have food in your mouth.