二、从方框中选择适当的单词或短语，在横线上填入其正确形式。每个单词或短语仅用一次
wet easy be home to cut down climate change
The Amazon Rainforest is in South America. It covers about 7 million square kilometres. It
1.
is home to
many different kinds of animals and plants.
However, 2.
climate change
makes the rainforest “sick”. Actually, the rainforest can fix itself. But now, it feels too “tired” to get better. The Amazon is one of the world's
3.
wettest
places. But since 2005, three droughts (干旱) have hit the Amazon Rainforest. The trees don't have enough water to grow. What's worse, they can catch fire when they become dry. People 4.
cut down
rainforest trees mostly for wood. They burn (烧毁) the forest to make farmland. All these human activities 5.
easily
harm the rainforest.
Researchers are thinking of better ways to save the Amazon Rainforest. Hope we can solve the problems in the near future.
解析：
【分析】首先通读全文理解主旨为介绍亚马逊雨林及面临的问题，再逐个分析空格：1. 主语it指代亚马逊雨林，需表达“是……的家园”，对应方框短语be home to，主语为第三人称单数，一般现在时，需调整形式；2. 空格需填导致雨林“生病”的原因，方框中climate change符合语境；3. 空格所在结构为“one of + 形容词最高级”，方框中wet的最高级形式符合“亚马逊是世界上最潮湿的地方之一”的表述；4. 结合“获取木材”的语境，方框中cut down（砍倒）符合，主语为复数，用原形；5. 空格修饰动词harm，需用副词，方框中easy的副词形式符合要求。
【解析】1. 句意：它是许多不同种类动植物的家园。短语be home to表示“是……的家园”，主语it为第三人称单数，一般现在时，故填is home to；2. 句意：然而，气候变化让雨林“生病”。climate change（气候变化）符合语境，作主语，故填climate change；3. 句意：亚马逊是世界上最潮湿的地方之一。“one of + 形容词最高级 + 名词复数”为固定结构，wet的最高级是wettest，故填wettest；4. 句意：人们砍倒雨林树木主要是为了获取木材。cut down表示“砍倒”，主语people为复数，一般现在时，故填cut down；5. 句意：所有这些人类活动很容易伤害雨林。此处修饰动词harm，需用副词，easy的副词形式是easily，故填easily。
【答案】1. is home to 2. climate change 3. wettest 4. cut down 5. easily
【知识点】动词短语用法、形容词最高级、副词的构成
【点评】本题为选词填空题型，考查词汇在语境中的正确运用，需结合句意、语法规则（时态、词性变化）选择并变形方框内的内容，难度适中。
【难度系数】0.6
