四、还原信息
A group of scientists finished a 10-year project to count the number of tuna（金枪鱼）and other large fish in the world's ocean. 1. That is these fish are almost gone.
2. When there are fewer and fewer fish like tuna in the ecosystem, the ocean's food chain（食物链）will be broken. Animals like sharks may die as they can't find food—tuna.
Many people around the world get their protein（蛋白质）from fish. 3. Because of overfishing, almost ninety per cent of the world's large fish have disappeared（消失）. And these large fish are the ones we usually eat.
Besides, the nets（网）we use for fishing also cause harm to the ocean. The bottom net is huge and heavy. 4. At the same time, it also catches much unwanted wildlife. Even worse, the bottom net hurts the ocean floor and destroys natural places. Plants and animals usually grow or live there.
Hearing the news, do you feel that it is urgent（急迫的）to protect the ocean? As students, we can also do our part to protect the ocean. 5. Years later, we can see different kinds of fish in the ocean.

1.D 2.F 3.A 4.E 5.G

【分析】
本题为英语语篇还原题，需结合上下文的语境、逻辑关系（如因果、递进、引出结论等），匹配合适的句子。解题思路：先通读全文把握主旨，再逐空分析前后句的逻辑衔接，选择符合语境的选项。
【解析】
1. 第1空：前文提到科学家完成10年的鱼类计数项目，后文说明“这些鱼几乎消失了”，这是项目得出的惊人结果，需引出该发现，故选D。
2. 第2空：后文阐述鱼减少会破坏食物链、导致鲨鱼死亡等危害，需先点明大鱼消失的后果，故选F。
3. 第3空：前文说很多人从鱼获取蛋白质，后文说明过度捕鱼导致大鱼消失，逻辑上是“对鱼的需求增长”引发过度捕捞，故选A。
4. 第4空：前文讲捕鱼底网的特点，后文说网还捕获不需要的野生动物，需说明网的捕获情况，故选E。
5. 第5空：前文说学生可参与保护，后文说几年后能看到不同的鱼，需衔接“小行动有大影响”的内容，故选G。
【答案】
1.D 2.F 3.A 4.E 5.G
【知识点】
英语还原句子；语篇逻辑衔接；语境理解
【点评】
本题考查英语语篇的逻辑衔接能力，要求学生结合上下文的因果、递进等关系选择合适句子，注重语篇整体理解，是常见的英语题型。
【难度系数】
0.5

五、完形填空
Aru Village lies by Lake Ra'og Co in Xizang, China. Many years ago, to keep their lake clean, people from the village used boats to go across the lake and 1 rubbish in the water. The villagers cared about the 2, so they kept doing this.
Later, a bridge was built 3 the lake, so villagers no longer needed to use boats to cross it. 4 the idea of cleaning the lake was kept. Tsering Dondrup, a village officer who used to go to school by boat, knew how the older villagers collected rubbish in the lake. He and other officers did a lot to help 5 the lake and its ecosystem.
The village has 43 families with 227 people now. A team of 44 people from the village is paid by the government to take turns to help keep the lake and 6 forests clean. They should also clean the roads and the area around the lake. They collect the rubbish and take it to the 7 place to be recycled (回收).
Dampa, a 46-year-old man from the team, started doing the job in the lake about 20 years ago. "As part of this team, I can 8 about 3 500 yuan a year. I'm happy to do my part in keeping the lake clean," he said. Now, Aru Village has become a good 9 of ecosystem protection. Lake Ra'og Co has about 300 000 visitors every year. Village officer Xu Cong says the 10 of both the villagers and the government have helped keep the beauty of the area.
() 1. A. find out B. pick up C. fight with D. depend on
() 2. A. environment B. mountain C. tradition D. wild
() 3. A. under B. in C. over D. through
() 4. A. So B. And C. Or D. But
() 5. A. keep B. protect C. build D. enjoy
() 6. A. nearby B. far C. thick D. large
() 7. A. great B. right C. interesting D. noisy
() 8. A. pay B. save C. lose D. make
() 9. A. example B. form C. camp D. field
()10. A. goals B. actions C. programmes D. abilities

1.B 2.A 3.C 4.D 5.B 6.A 7.B 8.D 9.A 10.B

【分析】
做完形填空需先通读全文把握主旨，本文讲述西藏Aru村保护湖泊的故事，再结合每个空的上下文语境、词汇搭配、逻辑关系逐一分析选项，排除不符合语境的选项，选出最恰当的答案。
【解析】
1. 语境：为保持湖泊清洁，村民乘船去湖里捡垃圾。pick up意为“捡起”，符合语境；find out（查明）、fight with（与…打架）、depend on（依靠）均不符合，选B。
2. 语境：村民关心环境，所以坚持清洁湖泊。environment（环境）符合；mountain（山）、tradition（传统）、wild（荒野）均不符合，选A。
3. 桥建在湖的上方（不接触湖面），over表示“在…上方（垂直不接触）”，under（在…下）、in（在…里）、through（穿过内部）均不符合，选C。
4. 逻辑：之前不用船了，但清洁湖泊的想法保留，为转折关系，But（但是）符合；So（所以）、And（和）、Or（或者）均不符合，选D。
5. 语境：保护湖泊和生态系统。protect（保护）符合；keep（保持）、build（建造）、enjoy（享受）均不符合，选B。
6. 语境：附近的森林。nearby（附近的）符合；far（远的）、thick（厚的）、large（大的）均不符合，选A。
7. 语境：把垃圾带到正确的地方回收。right（正确的）符合；great（伟大的）、interesting（有趣的）、noisy（吵闹的）均不符合，选B。
8. 固定搭配：make money意为“赚钱”，此处指每年赚约3500元，make符合；pay（支付）、save（节省）、lose（失去）均不符合，选D。
9. 语境：成为生态保护的好例子。example（例子）符合；form（形式）、camp（营地）、field（田野）均不符合，选A。
10. 语境：村民和政府的行动帮助保持地区美丽。actions（行动）符合；goals（目标）、programmes（节目）、abilities（能力）均不符合，选B。
【答案】
1.B 2.A 3.C 4.D 5.B 6.A 7.B 8.D 9.A 10.B
【知识点】
完形填空、词汇辨析、语境理解
【点评】
本文围绕生态保护主题展开，贴近生活实际，考查学生对词汇、上下文逻辑关系的理解，难度适中，有助于培养环保意识。
【难度系数】
0.6