China’s deep-sea manned submersible Jiaolong conducted a deep-diving operation in Western Pacific Ocean on Sunday, with foreign scientists involved for the first time. Experts said the move indicated a new phase in China’s deep-diving scientific research as well as its inclusive (包容的) global mind-set. 

    A scientific expedition team on board research vessel (舰) Shenhai Yihao (meaning Deep Sea No.1) arrived at the first operation site in the Western Pacific Ocean on Saturday around 10 pm Beijing time. Xu Xuewei, chief scientist of the mission, along with crew members Qi Haibin and Zhang Yi, completed the first dive at 11 am on Sunday Beijing time, signifying the successful completion of the 300th dive of Jiaolong. According to Xu, the team is scheduled to conduct its mission in the Magellan Seamounts in the Western Pacific Ocean, which is regarded as a priority area for future deep-sea biodiversity conservation. 

    Jiaolong is scheduled to make 18 dives to collect deep-sea organisms, seawater and sediments (沉积物), so as to deepen the understanding of the unique ecosystems and environments of seamounts. Yu Xingguang, a research fellow at the Third Institute of Oceanography of Ministry of Natural Resources, noted that Jiaolong enjoys favorable capabilities, combined with its rich experience in deep-sea exploration. Jiaolong’s significance, therefore, lies in its potential to contribute to the protection of biodiversity and marine ecosystems.

    Tang Dongmei, a senior official of the Ministry of Natural Resources, said at the launch ceremony on Saturday that the China-led Digital Deep-sea Typical Habitats Program had gained the support and participation of 39 countries. As the first international voyage under the program, the expedition also involves scientists from Canada, Spain, Colombia and other countries and regions. This shows how the team members from different countries and regions can share experiences and learn from each other, and demonstrates that China’s deep-diving research serves as an international research platform, emphasizing China’s    ▲    to scientific development, Yu said.

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1.What does the operation of China’s Jiaolong in the Western Pacific Ocean signify?

A The end of its deep-diving operations.

B A new chapter in China’s deep-sea scientific exploration.

C A decrease in global collaboration.

D International cooperation in space exploration.

解析：选B。B细节理解题。根据第一段第二句“Experts said the move indicated a new phase in China’s deep-diving scientific research as well as its inclusive global mind-set.”可知，此举标志着中国深潜科考进入了一个新阶段。故选B。

2.What is the main purpose of Jiaolong’s dives in the Magellan Seamounts?

A To search for rare minerals in the deep-sea sediments.

B To study and conserve deep-sea biodiversity.

C To test Jiaolong’s capabilities in extreme depths.

D To establish a permanent research station in the area.

解析：选B。B细节理解题。根据第三段中的“so as to deepen the understanding of the unique ecosystems and environments of seamounts”和“contribute to the protection of biodiversity and marine ecosystems”可知，调查区位于西太平洋麦哲伦海山链，通过“蛟龙”号载人潜水器开展生物多样性及环境调查。故选B。

3.Which word can be put in the blank “ ▲ ” in the last paragraph?

A open-mindedness

B creativity

C self-development

D leadership

解析：选A。A 推理判断题。根据第一段的“its inclusive (包容的) global mind-set”以及最后一段空白处的前文大意：中国牵头的“数字化深海典型生境”大科学计划，获得39个国家的支持和参与……本航次搭载了来自加拿大、西班牙、哥伦比亚等国家和地区的科学家，展示了来自不同国家和地区的团队成员如何分享经验，相互学习，展示了中国深潜研究作为国际研究平台的作用。由此可知，这次考察强调中国对科学发展的开放态度。故选A。

4.What is the best title for the text?

A Jiaolong is to probe deep with new mother ship.

B Jiaolong returns after ocean expedition.

C China’s deep-sea exploration is not just about depth.

D China’s Jiaolong submersible makes historic 300th dive.

解析：选D。D 主旨大意题。本文主要介绍了“蛟龙号”顺利完成第300次下潜，这一里程碑事件在国际上彰显了中国深潜的实力。故选D。