“好雨知时节，当春乃发生．随风潜入夜，润物细无声．”诗句中描写的影响植物生长的主要非生物因素是（　　）

选词填空。

僻静  寂静

①那是一个____的小院，平时很少有人去。

②夜深了，树林里一片____。

G为不溶于稀硝酸的白色固体；溶液H的焰色反应呈紫色（透过蓝色的钴玻璃观察）．回答下列问题：

材料一　美国人的巨大优点，在于他们允许犯错误，而事后又能纠正错误……美国的民主法制，经常是残缺不全的。美国的法律……认可侵权的危险行为……民主的法制一般趋向于照顾大多数人的利益，因为它来自公民之中的多数。公民之中的多数虽然可能犯错误，但它没有与自己对立的利益。贵族的法制与此相反，它趋向于使少数人垄断财富和权力，因为贵族生来总是少数。

材料二　在民主国家，不断关心自己的事业和重视自己的权利的人民，可防止他们的代表偏离他们根据自己的利益为代表规定的总路线。如果民主国家的行政官员比其他国家的易于滥用权力，则人民一般不会让他们长期留任。在贵族国家的政府中，官员就受他们的阶级利益支配了。他们的阶级利益只是有时与多数人的利益一致，而在大多数情况下，则是与多数人的利益相反的。

——以上均摘自托克维尔《论美国的民 主》

完形填空

    Last fall, before Thanksgiving, I was making my way in my car out of the shopping center parking lot. I was bored in the car. I 1a woman heavily loaded with 2 and her two boys, one carrying a pumpkin and the other another bag.

    They were headed, I 3, to the bus stop across the major road. 4it was too far to walk with all those 5 to any of the nearby bus stops, on a random impulse（冲动），I rolled down my window and asked if they were indeed headed to the 6. “Yes,” the mother 7. I asked, “Would you like a 8? “Oh, yes!” was their 9 reaction.

    I was also delighted，and，after driving out of the way of other 10, I stopped and the boys piled into the back seat . The mother started to push 11 beside them. I 12 her by saying, “Oh, you come on up here 13 me. I'm not a taxi driver!” So off we went.

    Right away, I decided to take them a mile and a half to their home, since I had 14 and they had bags. All the way, I had just a fine time listening and talking with all of them. It felt so good to be able to do this little 15 and showed that with such a small 16I could make a big difference to a tired mother. I'm not sure 17 got the most out of it.

    18, this was special for me 19, as a disabled person, I often receive help and now I know how especially good it feels to be 20.