根据图片及语境提示补全对话
1.

—Why are so many coun-
tries researching the
deep sea?
—Well, because we don't
know enough about the ①
.
—Yeah, China's Fendouhe dived ②
into the Mariana Trench than many other
vessels in the world and filmed it.
—Did they see any ③
?
What are they like?
—Yes, many deep-sea animals are large and
④.
2.
—What are some surprising

facts about the deep sea?
—Well, can you imagine
that there's rubbish even
at①?
—That's too shocking!
—How terrible! We should do something to
stop people②.

1. ①ocean floor ②deeper ③deep-sea
animals ④unusual
2. ①11,000 metres deep
②polluting the environment

【分析】补全对话需结合上下文语境、语法规则及相关常识。第1部分围绕深海研究展开：①处，问句问为何多国研究深海，答语应说明对深海某部分了解不足，结合常识为洋底；②处，句中出现than，需用副词比较级，结合奋斗者号下潜成就，应为更深；③处，后文提到深海动物，故此处询问是否看到深海动物；④处，描述深海动物特征，与large并列的形容词，结合常识为不寻常的。第2部分围绕深海惊人事实：①处，结合前文马里亚纳海沟，其深度约11000米，对应语境；②处，结合stop sb doing sth的固定搭配，语境为阻止人们污染环境。
【解析】1. ①：根据对话逻辑，研究深海的原因是对洋底了解不足，故填ocean floor；②：由句中than可知用比较级，结合奋斗者号的下潜深度成就，填deeper；③：后文明确提及deep-sea animals，故此处询问是否看到深海动物，填deep-sea animals；④：描述深海动物的特征，与large并列的形容词，填unusual。2. ①：结合常识，马里亚纳海沟深度约11000米，对应语境，填11,000 metres deep；②：stop sb doing sth为固定搭配，结合语境是阻止人们污染环境，填polluting the environment。
【答案】1. ①ocean floor ②deeper ③deep-sea animals ④unusual；2. ①11,000 metres deep ②polluting the environment
【知识点】补全对话、形容词比较级、固定搭配
【点评】本题以深海为话题补全对话，需结合上下文语境、语法知识及常识推断答案，考查学生的语境理解与语言运用能力，难度适中。
【难度系数】0.5

跟踪练习
①With the (develop)
of science, more kinds of robots are appearing
in our families.
②近年来，中国的科技取得了长足的
进步和发展。
In recent years, China's science and
technology has made rapid
.
③发达国家应该为环境保护承担更多责任。
The should
take more responsibilities for environmental
protection.

①development ②progress and development
③developed countries

【分析】
本题为英语词汇填空题，需结合词性转换、固定短语及常用表达完成。第①题根据“the + 名词 + of”结构，需将动词develop转换为名词；第②题对应中文“进步和发展”的固定英文表达；第③题“发达国家”需用形容词developed修饰可数名词复数countries。
【解析】
①：句意为“随着科学的发展”，定冠词the后需接名词，动词develop的名词形式为development，故填development。
②：“进步”对应progress，“发展”对应development，二者为并列的固定表达，故填progress and development。
③：“发达的”英文为developed，修饰可数名词复数countries，“发达国家”即developed countries，故填developed countries。
【答案】
①development ②progress and development ③developed countries
【知识点】
词性转换、固定短语搭配
【点评】
本题考查基础英语词汇的运用，涉及词性变化和常用短语，难度较低，适合巩固词汇基础。
【难度系数】
0.8