根据句意和所给首字母或汉语提示完成单词。

1．There are 90 teachers in our school．About half of them are w        

2．I am b        my little sister for vacation．

3．My sister is d          from me．I'm calm．She is outgoing．

4．I can’t finish the work on time          (无，没有)your help．

5．I don’t think differences are important in a        (友谊)．

阅读理解

　　The Browns have a very nice garden round their house. It has some tall trees and many flowers. Mr. And Mrs. Brown work hard in their garden. Now Mrs. Brown is in the garden getting some flowers. She will put the flowers in the dining room and in the sitting room.

　　Susan is sitting in a chair in the garden. She is reading a book. Susan did not go to work today, so she is at home. David is saying good-bye to his mother. He is running through the gate. He is going to school. He will go to school by bus. At school he will work with his friends. He will have lunch at home. Mr. Brown went to London this morning; he is in London now and will have his lunch there. This afternoon he will come to the station by train, and then he will drive from the station to his house by car. Mrs. Brown will be at home. Susan will be with her friend Tom Smith in his car. They will go down town this afternoon and have tea there.

1. There is a ______.

[　　]

A. beautiful house near the garden without(无，没有)trees and flowers

B. nice garden near the Browns' house

C. big park round the house

D. nice garden with some tall trees round the Browns' house

2. Mrs. Brown is getting some flowers to ______.

[　　]

A. give them to Susan

B. put them in the sitting room and dining room

C. take them to school

D. send them to her friends

3. Susan is ______．

[　　]

A. looking at a picture book

B. sitting in a chair and reading a book

C. reading a newspaper

D. putting the flowers in her bedroom

4. David is ______.

[　　]

A. having his lunch

B. going to school by bike

C. reading a book

D. going go school

5. Mr. Brown will have ______ this afternoon.

[　　]

A. his breakfast in London

B. his lunch in London

C. his supper in David's school

D. tea in his office

阅读下列短文，从所给的四个选项中，选出最佳答案．

　The Browns have a very nice garden round their house． It has some tall tree and many flowers． Mr．and Mrs．Brown work hard in their garden． Now Mrs．Brown is in the garden getting some flowers． She will put the flowers in the dining room and in the sitting room．

　Susan is sitting in a chair in the garden． She is reading a book． Susan did not go to work today, so she is at home． David is saying good-bye to his mother． He is running through the gate． He is going to school． He will go to school by bus． At school he will work with his friends． He will have lunch at home． Mr．Brown went to London this morning; he is in London now and will have his lunch there． This afternoon he will come to the station by train, and then he will drive from the station to his house by car． Mrs．Brown will be at home． Susan will be with her friend Tom Smith in his car． They will go down town this afternoon and have tea there．

1．There is a ______．

[　　]

A．beautiful house near the garden without （无，没有）trees and flowers

B．nice garden near the Browns'house

C．big park round the house

D．nice garden with some tall trees round the Browns'house

2．Mrs． Brown is getting some flowers to ______．

[　　]

A．give them to Susan

B．put them in the sitting room and dining room

C．take them to school

D．send them to her friends

3．Susan is ______．

[　　]

A．looking at a picture book

B．sitting in a chair and reading a book

C．reading a newspaper

D．putting the flowers in her bedroom

4．David is ______．

[　　]

A．having his lunch

B．going to school by bike

C．reading a book

D．going to have lunch in school

5．Mr．Brown will have ______ this afternoon．

[　　]

A．his breakfast in London

B．his lunch in London

C．his supper in David's school

D．tea in his office

甲基丙烯酸酯是世界上年产量超过100万吨的高分子单体．旧法合成的反应是：
（CH₃）₂C＝O＋HCN→（CH₃）₂C（OH）CN
（CH₃）₂C（OH）CN＋CH₃OH＋H₂SO₄→CH₂＝C（CH₃）COOCH₃＋NH₄HSO₄
90年代新法的反应是：
CH₃CH＝CH₂＋CO＋CH₃OHCH₂＝ C（CH₃）COOCH₃与旧法比较，新法的优点是

A．原料无爆炸危险	B．原料都是无毒物质
C．没有副产物，原料利用率高	D．对设备腐蚀性较小

书面表达

刘伟，无臂钢琴演奏者。他十岁时在一次意外中失去双臂，但他并没有放弃成为一名钢琴家的梦想。经过刻苦用脚练习弹琴，他最终在“中国达人秀”（China’s Got Talent）的舞台上实现了自己的梦想。请根据以上内容写一篇英语短文。

要求：

简要描述刘伟的经历；

谈谈从他的经历中得到的启示；

词数80左右。开头已给出，不计入总词数。

Liu Wei, an armless piano player, has a very special experience.