如图，两张宽为1cm的矩形纸条交叉叠放，其中重叠部分是四边形ABCD，已知∠BAD＝60゜，则重叠部分的面积是____cm²．

    During the summer holiday，Alice had a nice trip．First she took a plane from Changchun to Beijing．She went to the Great Wall．She was very tired．But she was  happy．She likes Beijing very much．Then she went to London by plane．She visited Big Ben，the clock tower．There were many museums in London．She learnt a lot there．People in London love eating fish and chips．She stayed in London for 5 days．Then she took a plane to Shanghai．Then she went to Changchun by plane．

根据短文，判断正误。

阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。

Chinese proverbs are rich and they are still widely used in Chinese people’ daily life.

Behind these ____  (proverb) there are often interesting stories. For example, the proverb, “ ____ （pull） up a crop to helpit grow”, is based on the following story.

It is said that a short-tempered man in the Song Dynasty (960-1279) was very anxious to help ____ (he)rice crop grow up quickly. He was thinking about it day ____ night. But the crop was growing much____ (slow) than he expected.

One day, he came up with an idea____ he would pluck up all of his crop a few inches. He did so the next day.

He was very tired after doing this for a whole day, yet he felt very happy since____ crop did “grow” higher.

His son heard about this and went to see the crop.____ (fortunate) the leaves of the crop began to wither.

This proverb is saying we have to let things go in their____ (nature) course. Being too anxious to help an event develop often results in the contrary to our____ (intend).