UNIT 3 单元限时训练(六)(Word版习)-【优化指导】2021-2022学年新教材高中英语选择性必修第四册(人教版2019)

单元限时训练(六) (限时40分钟) Ⅰ.语法填空 1．________(see)from outer space, Earth is a blue planet, due to the fact that the ocean covers over 70 percent of its surface. According to a new study published in the journal Science, the ocean plays a great role in 2.________(slow)down global warming.3.________The New York Times reported，it is“4.________important buffer(缓冲物)．” The oceans can absorb 93 percent of the heat trapped by the greenhouse gases 5.________ humans release into the atmosphere. And the other 7 percent 6.________(absorb)by the air, land and ice caps，according to The Guardian. “If the ocean wasn't absorbing as much heat, the surface of the land would heat up much 7.________(fast)than it is right now，”said Professor Malin L Pinsky at Rutgers University in the US.“In fact, the ocean is saving us from rapid warming right now.” However, the ocean itself, as Discover Magazine noted, is heating up 40 percent faster on average than the United Nations 8.________(believe)five years ago.“That means that if the ocean temperatures increase 9.________this speed, the high water temperatures will kill off marine ecosystems，raise sea level and make 10.________(hurricane)more destructive(破坏性的)”，The Guardian reported. [语篇解读]　本文是一篇新闻报道。本文讲述了海洋在减缓全球变暖中扮演着重要角色，但海洋本身的平均升温速度比联合国五年前认为的要快40%，这将带来一些破坏性的影响。 1．Seen　[考查过去分词。Earth与see在逻辑上是被动关系，所以用see的过去分词seen作状语。故填Seen。] 2．slowing　[考查动名词。in为介词，后接动名词。故填slowing。] 3．As　[考查定语从句。此处指正如《纽约时报》所报道的，应用as引导非限制性定语从句，as意为“正如”，指代后面的整个句子，作reported的宾语。故填As。] 4．an　[考查冠词。buffer为可数名词，在本句表示泛指，且important以元音音素开头，所以用不定冠词an修饰。故填an。] 5．that/which　[考查关系代词。分析句子可知，设空处引导定语从句，greenhouse gases为先行词，关系词在定语从句中作宾语，所以用关系代词that 或which。故填that 或which。] 6．is absorbed　[考查时态和语态。由上下文语境可知，本句为一般现在时，本句的主语the other 7 percent 与absorb 之间为被动关系。故填is absorbed。] 7．faster　[考查副词比较级。由than可知，设空处填比较级faster。] 8．believed　[考查时态。由five years ago 可知，than 引导的从句用一般过去时。故填believed。] 9．at　[考查介词。表示“以……速度”，用介词at。at this speed以这个速度。故填at。] 10．hurricanes　[考查名词复数。hurricane意为“飓风”，为可数名词，由语境且设空处前无限定词可知，此处应用复数名词hurricanes。]