任务三 信息还原
阅读下面短文,从所给选项中选出能填入空白处的最佳选项,使短文通顺,结构完整,其中有一项是多余选项。
The Yangtze River is the longest river in China and the third longest river in the world. (1) It is about 6,300 kilometres long. It starts from the Tanggula Mountains and runs through some provinces including Qinghai, Xizang, Sichuan, Yunnan and so on. (2) During the long history of ancient China, this river helped feed(养活) millions of people and develop amazing cultures. The important cities such as Shanghai and Nanjing are sitting along the river.
(3) In the past, the water in it was clean but now it is dirty. A lot of fish died because of water pollution. Luckily, people realized the importance of protecting the Yangtze River. A programme was set up in 1989 to protect the water and land around the river. It was successful and it helped improve the environment. (4) It helps protect white-flag dolphins, one of the rarest animals in the world. The number of white-flag dolphins in China dropped because of the pollution in the Yangtze River. (5) However, we still have a long way to go to protect the great river. Let's work together to help our Mother River become as clean as it used to be.
A. So far, we've made some achievements.
B. Finally, it runs into the ocean in Shanghai.
C. The other programme is about environmental protection.
D. However, the Yangtze River also faces some problems.
E. A great programme teaches children about endangered animals.
F. It is just after the Nile in Africa and the Amazon in South America.

(1) F
(2) B
(3) D
(4) C
(5) A

我们可以根据上下文逻辑逐一匹配选项：
1. 第一空前提到长江是世界第三长河，F选项说明它的长度排名仅次于非洲尼罗河和南美洲亚马逊河，正好对应“世界第三长”的表述，衔接自然。
2. 第二空前提到长江发源于唐古拉山脉、流经多个省份，B选项介绍长江最终在上海入海，是对长江整个流向流程的完整补充，逻辑通顺。
3. 第三空后文开始介绍长江水质变差、鱼类死亡的问题，D选项“然而，长江也面临一些问题”可以自然引出下文的问题描述，起到承上启下的作用。
4. 第四空前提到1989年设立了第一个保护长江水土的项目，C选项的“The other programme”对应前文的第一个项目，引出另一个和环保相关、保护白鳍豚的项目，符合语境。
5. 第五空后文用“However”转折说明保护长江仍任重道远，A选项“到目前为止，我们已经取得了一些成就”放在此处，和后文的转折形成合理逻辑，符合行文结构。
多余选项E的相关表述在原文中没有对应内容，为多余项。