阅读下面短文，掌握大意，然后从每题所给的A、B、C、D四个选项中选出最佳选项。

Once, there was a beautiful girl who didn ’t like herself, because she was blind, she couldn ’t see anything. In fact, the girl __11__ nobody except her boyfriend, for he was always __12__ to help her. She used to tell her boyfriend, “ __13__ I could see the world, I would marry you. ” One day, someone donated* a pair of __14__ to the girl. When the bandages* came off ，she was able to see __15__ ,including her boyfriend for the __16__ time. He asked her, “Now that you can see the world, will you __17__ me?” The girl looked at her boyfriend and was greatly surprised to see that he was blind, __18__ . She had never expected that, and she would not like to be with a blind husband for the rest of her li fe, so she __19__ to marry him. Her boyfriend left in tears and a few days later wrote a __20__ to her, saying, “My dear, take good care of your eyes. Before they are yours, they were __21__ .” So, this is how the human brain* often works when our status* changes. Only a very few remember __22__ life was like before. And we often ask for more than we need. Life is a gift. Today, before you complain about the __23__ of your food ，think of those who have nothing to __24__. Before you complain about life ，think of some ones who went to heaven* too early. Before you complain about your old __25__ , think of the people who are living in the streets. And when you are ti red and complain about your job, think of those who have no jobs. In a word, enjoy the things you have and don ’t forget your past.

下列地理现象主要与地球的公转有关的是()

在三棱锥 P-ABC中，侧棱 PA⊥底面 ABC,AB⊥BC,E,F 分别是 BC,PC的中点．

(I) 证明： EF∥平面 PAB;

(II) 证明： EF⊥BC

口袋里有8个红球和4个白球，它们除颜色外完全相同，从中摸出1个球，摸出红球的可能性是()

Jack is a teacher of English. He is not young，but he is not old. He has a round face and black hair.He is tall. There are fifty students in his class. They all like him.Now it's in the afternoon. Look，some students are working in the classroom. Jack is there，too.He is helping them to study English. He is a good teacher， and he is a good friend of them all.

()1. What does Jack do?

A. He is a worker.

B. He is a teacher.

C. He is a doctor.

D. He's a nurse.

()2. What colour is his hair?

A. It's black.

B. His heir is white.

C. It is brown.

D. He has yellow hair.

()3. How many students are there in his class?

A. There are fifteen students in his class.

B. There's fifty.

C. He has fifty.

D. There're fifty in it.

()4. Jack is a good teacher，isn't he?

A. Yes ，he isn't.

B. No ，he is.

C. Yes，he's.

D. Yes ，he is.

()5. What are the students doing in the classroom?

A. They are walking there.

B. They are doing their lessons.

C. They are helping their teacher.