玻璃生产，为什么不以氧化钙、氧化镁的形式引入玻璃成分，而用石灰石、白云石？

阅读理解。

     Yao Ming, the center of the Chinese National Men's Basketball Team, served the Houston Rockets in 2002 in NBA. The 2.26m, 120kg center became the first player to come from a foreign team.

     Yao Ming was born in Shanghai in September, 1980. His mother was a center and captain (队长)of

the Chinese National Women's Team. His father played basketball, too.

     Yao Ming is widely known in China. He came to be a very important basketball player in CBA. It's

short for China Basketball Association  (联赛). During the 2000-2001 season, he got 27.1 scores (得分)

for the Shanghai Oriental (东方)Sharks in every match.

     Yao Ming joined the Houston Rockets in October, 2002. He said it was a new start in his basketball

life. He would do his best to learn from the NBA and improve (提高)himself.

     Sport analyst (分析家) Bill Walton said,"Yao Ming has the potential (潜力) the capability (能力) of

changing the future of basketball."

1.The Houston Rockets is the name of a _____ team.

A. table tennis

B. volleyball

C. basketball

D. golf

2.Both Yao Ming's father and mother were _____.

A. football players

B. basketball players

C. the centers of the Chinese National Team

D. the captains of the Chinese National Team

3.Yao Ming _____ in CBA during the 2000-2001 season.

A. does well

B. is good

C. was good

D. did well

4.Yao Ming _____ the Houston Rockets in October, 2002.

A. did his best to join

B. was well-known in

C. became a member （成员）of

D. liked

5.Sport analyst Bill Walton thought Yao Ming was able to _____.

A. learn from the NBA

B. change the future of basketball

C. improve himself

D. became the captain of the Houston Rockets

有毒液化学物质对海洋的污染程度最严重的是（）

A、D类

B、A类

C、B类

以下不属于植物的无性生殖方式的是

A．椒草叶长成新植株

B．土豆带芽眼的块茎长成土豆植株

C．绿豆发芽

D．竹鞭长成新竹子

（5分）最近的雾霾天气导致呼吸病患者增多。

（1）为了健康，建议人们出行时尽量戴口罩。防PM_2．5的专用口罩使用了活性炭，这是利用了活性炭的作用              。

（2）下列行为中可造成环境污染的是             。

①鼓励使用公共交通出行 ②随意丢弃一次性快餐盒和塑料制品

③未经处理的工业“三废”直接排放④植树造林，加大绿化面积

⑤生活污水的任意排放

（3）根据相关资料显示，机动车、燃煤、扬尘对 PM_2．5的贡献率超过了50%。为减少污染，需要对煤综合利用。下面是煤的一种综合利用方式，请你进行分析。

甲、乙、丙、丁表示四种物质，它们的部分化学式和微观示意图分别列于下表：

①构成丙物质的元素质量比是             ，四种物质中属于氧化物的是         （填化学式）；

②甲和乙在一定条件下反应生成丙和丁，参加反应的甲和乙的质量之比为              。

1903年，当得知美国莱特兄弟发明了飞机后，中国的（）预见到飞机在军事上的价值，决心献身于新兴的航空事业，报效祖国。

A、冯如

B、鲁班

C、毕生

D、冯志