2008年北京奥运会主体育场的外形好似“鸟巢”（The Bird Nest），有一类物质也好似鸟巢，如化学式是B₅H₉的五硼烷（见图）．下列有关五硼烷的说法错误的是（ ）

A．五硼烷属于化合物
B．五硼烷的相对分子质量是64
C．五硼烷中硼元素和氢元素的质量比为5：9
D．1个五硼烷分子由5个硼原子和9个氢原子构成

2008年北京奥运会主体育场的外形好似“鸟巢”(The Bird Nest)，有一类物质也好似鸟巢，如化学式是B₅H₉的五硼烷(见右图)。下列有关五硼烷的说法错误的是

A．五硼烷属于化合物

B．五硼烷的相对分子质量是64

C．五硼烷中硼元素和氢元素的质量比为5：9

D．1个五硼烷分子由5个硼原子和9个氢原子构成

 

Once a Frenchman    36___ in England. He didn’t know English very well. One day he went to the post office with a postcard. He bought a    37  . Then he gave the stamp and the postcard to the girl    38  the desk. “Oh, no,” the girl said, “ you must stick（贴）the stamp on yourself.” He was very    39  . He couldn’t believe his ears. “Why must I stick the stamp on    40  ?” he asked. “Oh,” said the girl, “I mean that you must stick the stamp on the postcard. And you must do it yourself.”

【小题1】

A．live B．lives C．living D．lived

【小题2】

A．postcard B．stamp C．envelope D．paper

【小题3】

A．in B．on C．at D．under

【小题4】

A．surprised B．well C．tired D．happy

【小题5】

A．yourself B．myself C．herself D．himself

Look! This is my room. It has a big window. My bed is near 16  . Next to the bed there is17 .My books are 18 the desk. My pens, rulers and other 19 things are in my school bag. The bag is 20  the door. In the morning, I clean 21  and put everything in good order. Can you see the cat under the chair? 22 my cat Mimi. I have a bird Polly, but you  23  it in this room. It’s a Chinese cat. It’s in my24  . The cat and the bird can’t live 25 room, you know.

【小题1】

A．window B．the floor C．the window D．a window

【小题2】

A．a chair B．a desk. C．the table D．the desk

【小题3】

A．in a B．on my C．on D．under a

【小题4】

A．school B．family C．living D．home

【小题5】

A．in B．of C．behind D．under

【小题6】

A．my room B．room C．a room D．the rooms

【小题7】

A．It B．It’s C．That D．They’re

【小题8】

A．can see B．see C．not see D．can’t see

【小题9】

A．parent B．parent’s C．parents’ D．parents

【小题10】

A．in one B．in the same C．in same D．in the one

Dear Annie,
I have never written a letter to a newspaper before, I have just never felt the need to do such a thing. I have always felt I was quite able to do everything by myself. But now I know I was wrong.
Sometimes you really need help in life, I guess. And that’s why I’m writing this letter to you.
I have a happy family. I love my children and they love me . I’m a mother of three children. I know well how to bring up (带大)children, and two of them are already over twenty, so it is nothing new for me.
But now I have a serious problem: the Internet problem. My little son is just sixteen, and I feel he should do a lot of homework now , but he doesn’t seem to be interested in it . He can happily spend six or eight hours at a time on the Internet every day , He chats with people that he has never met before , but speaks little to us .He does lots of useless things on the Internet. And he sees red if you ask him to do his homework.
I just want him to be a good student . Now he seldom does his lessons at home. I’m afraid he will drop behind in his class soon. His father is a doctor , a very kind man . He never seems to be afraid of his father.
What can I do ?And don’t tell to talk to him. We’ve tried that and it didn’t work. But this is really a big problem in our family. I have tried everything I can think of . I
wonder how the Internet is so attractive(有吸引力的).You’re my last hope. Please tell me what I can do!
Yours,
Ellen Smith
【小题1】Mrs Snith wrote to Annie because　　　　　　　.

A．she often asked others for help

B．she thought she was a great mother

C．she didn’t know how to stop his son surfing the Internet

D．she didn’t know how the Internet was so attractive

【小题2】What might NOT Mrs Smith’s son do on the Internet?                       

A．Send e-mails to his friends	B．Prepare for his lessons
C．Chat with strange people	D．Read the news

【小题3】What does the phrase “he sees red” mean in this passage?                   

A．He feels sorry	B．He feels happy
C．He becomes frightened	D．He becomes angry

【小题4】What do you think of Mr.Smith?                   

A．An irresponsible(不负责任的)father who never taught his son

B．A very excellent doctor who was busy with his work and had no time to teach his son

C．A very kind man who loved his son

D．A man who always made his son be afraid of him but failed