观察下面生物体的结构层次概念图，判断下列说法错误的是（　　）

刚进入中学的陈杰和李辉两位同学，陈杰认为中学生活丰富多彩，而李辉却觉得中学生活枯燥无味，导致这两种境遇的出现主要原因是李辉    （   ）

阅读下文，回答问题

云彩带来的信息

    云是天气的脸面，它为我们带来了天气变化的消息。晴空万里时，朵朵馒头似的云挂在天边，时消时长，这是淡积云，是晴天的象征；遥望天际，座座城堡，点点炮台，这是堡状云，预示几天以后将有风雨；日落西山，彩云片片，或红或紫，渐散渐消，这是层积云，表示明天仍然是晴天；千丝万缕，拖尾带钩，这叫钩卷云，民间有“天上钩钩云，地上雨淋淋”的谚语。

    其实，对天气更有指示意义且最有用的，还是云的“副产品”，如霞光万道等。它们不仅为天空增添了奇妙的景色，而且告诉人们未来天气的变化趋势。

    虹，是太阳光照射在云中水滴上产生的光线折射和反射现象，它总是出现在太阳的对面。因为“虹云”水汽含量充沛且水滴直径较大，所以有“东虹轰隆，____________”之说。

    晕，是日光或月光通过云层中的冰晶时经折射而形成的光圈。它的出现，表示不久天将变坏，或风或雨。因此有“日晕三更雨，月晕午时风”之说。但并不是日晕只出雨，月晕只出风，在时间上也不一定正好如此。

    华，是出现在太阳或月亮周围的彩色光环，这是一种光线的衍射现象，“大华兆晴，小华兆雨”。

    霞，是日光斜射在天空中，由于空气的散射作用而使天空和云层呈现黄、橙、红等颜色的自然现象，多出现在日出或日落的时候。“朝霞不出门，__________________”就是关于霞的谚语。

    此外，在民间还流传着许多看云识天气的谚语，都有一定的科学道理。只要了解了它们，就会对生活有所帮助。

(有删改)

下列对分子、原子、离子的认识，正确的是（   ）

完形填空

    　Mary and Peter were having a picnic near a river when Mary noticed something flying overhead.“ 1 ,” she shouted to her friends. “ That's a spaceship up there and it's going to 2 here.”

　　Frightened(吓唬) by the strange silver colored spaceship,3 of the young people got in their 4 and drove away quickly. But Peter5 Mary and always close to her. They, more 6 than frightened, watched the spaceship land, saw a door open. When nobody 7 , they went to the spaceship and looked into。In the center of the floor 8 was a pile of food. Peter followed Mary into the spaceship and didn't 9 the door close behind him. The temperature fell quickly and the 10young people lost consciousness(知觉).

　　When they woke up, they were 11to see that they were back by the river 12 . The spaceship had gone. Their car was nearby.

　　“What 13 ?” said Mary.

　　“Don't ask me; perhaps we had a 14 .”Peter said slowly. “Did you … did you see a spaceship?”

　　“Yes,” said Mary. “Oh, Peter, we 15 have seen a UFO coming from another world.”