1 . 你校将举办英语演讲比赛。请你以Take the stage, play our role 为题写一篇发言稿参赛。
内容包括：
1.选择一个近来发生的让人振奋的事件说起，让你联想到祖国发展，青年一代所要肩负的责任和使命。
2.结合自身，如何实践理想报效祖国。
注意：1.词数 100 左右；       
2.题目和首句已为你写好。

Take the stage, play our role

China is rising on the world stage notably.

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2 . 阅读下面材料，根据其内容和所给段落开头语续写两段，使之构成一篇完整的短文。

Curtis Whitson knew Arroyo Seco very well. He had been to the camping site across the river many times with his friends.

But this time, it was different. Now he was with family: his wife and his 13-year-old son. And as they approached the river late in the afternoon, he found that the usually quiet river had turned wild due to a heavy rain two days before. It was impossible for them to cross the river to reach the camping site or return because it was too late.

“We cannot camp in the wildness and I have to send out a message for rescue,” Whitson thought.

He looked around and found a stick. He pulled out his pocketknife and carved “Help” in it. Then he tied a red rope to catch people's attention. He threw it into the river, but it did not float far and got stuck.

“Why not try our luck with our green Nalgene water bottle and put a note in it?” suggested his wife,

Whitson did as he was told and carved the word “help” on it before he threw the bottle into the river. This time, it worked perfectly.

“All right, we have tried our best to get help,” Whitson said, “But we should not just wait in this dangerous wildness in case…”

They walked up and down along the river bank for about 30 minutes and found a flat place to set up their tents. They collected enough dead branches and wood to keep a campfire going on all night. As the darkness closed in, they placed on the top of the camp a headlamp with its flashing light on. They waited until 10: 30 pm. But nothing happened. So they went to bed. Before turning in, Whitson added more wood to the fire to keep the dangerous animals away.

注意：1.续写词数应为150左右；
2.请按如下格式在答题卡的相应位置作答。

Shortly after midnight, they heard a helicopter circling above their tents.

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When the officers dropped them back at the rescue center, the family learned more about the whole story.

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3 . Without gravity（重力), we ________ walk on the ground as freely as we do now.

A．couldn't

B．mustn't

C．shan't

D．needn't

4 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

The Communist Party has made great progress in reducing China’s pollution, but     1     perfect storm of northern winds and an industrial rebound has created dangerously high levels of pollution countrywide.

Sandstorms used     2     (be) a regular occurrence in spring. In previous decades, each May saw at least two rounds of sandstorms, according to state-run Xinhua news agency. The     3     (frequent) and severity of sandstorms was partly due to drought,     4     (grow) population pressure and poor progress in revegetation,     5     caused rapid desertification of land in the north and northwest.     6    , sandstorms have since decreased dramatically. The annual number of sandstorm     7     (impact) days in Beijing fell from a peak of 26 in the 1950s to just three days after 2010, Xinhua reported.

Since 2000, the Chinese government     8    (invest) billions of dollars toward sandstorm prevention. Authorities have launched     9     (variety) reforestation and ecological projects, and installed satellites to monitor sandstorms and alert weather agencies     10     of time.