问题 单项选择题 A型题

杨树是生活中常见的木本植物,其茎从外到内的结构依次是()。

A.树皮→形成层→木质部→髓

B.树皮→木质部→形成层→髓

C.树皮→形成层→髓→木质部

D.树皮→木质部→髓

答案

参考答案:A

解析:木质茎的结构由外向内依次为树皮(包括表皮和韧皮部)、形成层、木质部和髓。其中维管束由韧皮部、形成层和木质部组成,形成层是位于木质部和韧皮部之间的一种分生组织,形成层细胞能不断地侧向分裂增生,其中,大部分细胞向内形成木质部,少量细胞向外形成韧皮部,从而使树干不断地生长加粗。故选A

填空题
阅读理解

阅读理解。

                                                 Interview with a president

     While many teenagers may dream of meeting with pop star Jay Chou or NBA hero Yao Ming, Li Jing

had a far more powerful person on her mind. The Senior 2 from Beijing No.35 High School dreamt of

meeting Russian President Vladimir Putin.

     After more than a year of hard work and with a little good luck, Li fulfilled her dream. On October 11, 2004, the 16-year-old girl joined a team of Chinese journalists who went to the Kremlin, in Moscow, to

interview Putin.

     Li felt nervous before talking with Putin. "But his greeting and warm smile put me at ease," she said.

Li admires Putin very much, because of his strong will and style of leadership. "He looks very cool," Li

said. During her interview, Li asked Putin whether he plans to educate his two teenage daughters to be

officials in the future. Putin smiled and answered he hopes they can do whatever job suits their interests

and personalities.

     Although Li would only have several minutes, she started working on her interview questions last

August after applying for the opportunity. "Journalists work is by no means easy. You need to do lots of

homework on your interviewee," she said. She read many books about Putin and Russia in her spare

time.?

Li's parents encouraged her to be a student journalist. "We fully support her, as long as it does not affect

her studies," said her father. Previously in her job for a student magazine, Chinese Young Journalists, she

wrote a letter to President Hu Jintao during the SARS epidemic.

     Li has learnt a lot from her experience. She said learning to manage her time and developing the

confidence to speak with important people were not the things she could learn in class.?

1. The underlined word "interviewee" in the fifth paragraph probably means ______.

A. the person who interviews?

B. the person who is interviewed?

C. the person who know how to interview?

D. the person who plan to interview a famous people?

2. Which of the following best describes Li Jing's parents' attitude towards her being a student journalist?

A. They think to be a student journalist is purely a waste of time.?

B. They worry that to be a student journalist will affect her studies.?

C. They consider it is quite good for Li Jing on the condition of not striking her study.?

D. They neither support it nor object to it.?

3. Li Jing is different from those students of her age in that ________.

A. she doesn't like pop star Jay Chou?

B. she hates meeting with the NBA hero Yao Ming?

C. she wants to meet neither Jay Chou nor Yao Ming?

D. she dreams of meeting the present powerful Russian leader?

4. Which of the following statements is NOT TRUE?

A. Li realized her dream just because of her hard work.?

B. Li was at ease at the first sight of president Putin.?

C. Li considers Putin a great leader because of his strong will and style of leadership.

D. Li thinks it impossible to learn in class the confidence to speak with great people.