下列世界四大长河中，名称和图序相符的是（　　）

选字填空。

晴    清     青     睛      情      请

____水    心____    眼____

____天    ____客    ____蛙

根据短文内容，选择正确答案。

    Tom walked into a shop. It had a sign outside: “Second-hand (旧的）clothes bought and sold.” He was carrying an old pair of trousers and asked the owner of the shop, “How much will you give me for these?” The man looked at them and then said,“Two dollars. ”

  “What?!” said Tom. “I thought they were worth at least five dollars.”

  “No,” said the man “They aren't worth a cent more than two dollars.”

  “Well,” said Toni, taking two dollars out of his pocket. “Here's your money. These trousers were hanging outside your shop. The list price (标价）of them was six dollars and a half. But I thought that was too much money, so I wanted to find out how much they were really worth.”

    Then he walked out of the shop with the pair of trousers and disappeared before the shop owner could think of anything to say.

在下面一段文字横线处补写恰当的语句，使整段文字语意完整连贯，内容贴切，逻辑严密。每处不超过15个字。

    在各种气象灾害中，台风、洪水等因瞬间破坏力巨大而更受关注，相比之下，____。其实，由于持续时间长，影响范围广，干旱在我国的气象灾害中是造成损失最重的。旱灾主要由气象因素造成，____：比如温室气体排放、植被破坏、水源过度开发等都会增加旱灾发生的频度和灾害程度。目前，人工影响天气效果有限，气候稳定几乎完全依赖地球环境在可调节范围内的自我修复，____，或将造成雪崩式的环境突变，后果不堪设想。