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四、用方框中所给单词和词组的正确形式填空，补全短文
| as | effect | return | such as | temperature | therefore |
| --- | --- | --- | --- | --- | --- |
In the natural world, climate change has had a bad $ ^{(1)} $
| as | effect | return | such as | temperature | therefore |
| --- | --- | --- | --- | --- | --- |
In the natural world, climate change has had a bad $ ^{(1)} $
effect
on some areas. For example, the Arctic (北极) has a quick increase in $ ^{(2)} $ temperature
, causing ice to melt. This situation affects the polar (极地) ice trap, where ice reflects (反射) sunlight back into space. $ ^{(3)} $ As
ice melts, less sunlight is reflected, causing the earth to have more heat. $ ^{(4)} $ Therefore
, the melting of ice can lead to another round of warming. Animals like polar bears, whose homes are in these icy areas, have more difficulty in finding food, leading to a drop in their populations (数量). Among these animals, $ ^{(5)} $ such as
seals and walruses (海豹和海象), the loss of ice means they have fewer places to rest. As ice keeps melting, these animals may finally have no choice but to $ ^{(6)} $ return
to more northern places to find cooler temperatures and safer ground.答案
1. effect
2. temperature
3. As
4. Therefore
5. such as
6. return
2. temperature
3. As
4. Therefore
5. such as
6. return
解析
【分析】
先通读短文把握主旨（气候变化对自然世界的影响），再结合每个空的语境、固定搭配及语法要求，匹配方框内的单词：1处需填表“影响”的名词；2处对应北极升高的事物；3处需引导从句表伴随；4处需表因果关系的副词；5处需表举例的短语；6处需填表“返回”的动词。
【解析】
1. 固定搭配have a bad effect on意为“对……有坏影响”，此处需名词，故填effect；
2. 结合语境“北极快速升高的”，应填名词temperature（温度）；
3. as在此处引导时间状语从句，意为“随着”，句首需大写，故填As；
4. 前文说明冰融化导致地球吸热更多，后文说明冰融化引发进一步变暖，是因果关系，需表结果的副词，句首大写，故填Therefore；
5. 后文列举海豹和海象，需表举例的短语，故填such as；
6. return to为固定搭配，意为“返回”，to后接动词原形，故填return。
【答案】
1. effect
2. temperature
3. As
4. Therefore
5. such as
6. return
【知识点】
固定搭配、连词用法、名词词义辨析
【点评】
本题为选词填空，侧重考查词汇在语境中的运用，涉及固定搭配、连词及举例短语的使用，难度适中，学生只要掌握单词基本含义和常用搭配即可正确作答。
【难度系数】
0.6
先通读短文把握主旨（气候变化对自然世界的影响），再结合每个空的语境、固定搭配及语法要求，匹配方框内的单词：1处需填表“影响”的名词；2处对应北极升高的事物；3处需引导从句表伴随；4处需表因果关系的副词；5处需表举例的短语；6处需填表“返回”的动词。
【解析】
1. 固定搭配have a bad effect on意为“对……有坏影响”，此处需名词，故填effect；
2. 结合语境“北极快速升高的”，应填名词temperature（温度）；
3. as在此处引导时间状语从句，意为“随着”，句首需大写，故填As；
4. 前文说明冰融化导致地球吸热更多，后文说明冰融化引发进一步变暖，是因果关系，需表结果的副词，句首大写，故填Therefore；
5. 后文列举海豹和海象，需表举例的短语，故填such as；
6. return to为固定搭配，意为“返回”，to后接动词原形，故填return。
【答案】
1. effect
2. temperature
3. As
4. Therefore
5. such as
6. return
【知识点】
固定搭配、连词用法、名词词义辨析
【点评】
本题为选词填空，侧重考查词汇在语境中的运用，涉及固定搭配、连词及举例短语的使用，难度适中，学生只要掌握单词基本含义和常用搭配即可正确作答。
【难度系数】
0.6
There are many wetlands in China and some of them have become important nature reserves. The Yancheng Yellow Sea Wetlands are among them. They are in Yancheng, Jiangsu Province. They are home $ ^{(1)} $ many kinds of birds and animals. What's more, the world's $ ^{(2)} $ (large) nature reserve for milu deer is also there. These are great places for more than 7,000 milu deer $ ^{(3)} $ (live) freely. The temperature in the wetlands is usually not too high $ ^{(4)} $ too low. There is a lot of rain and sunshine too. The wetlands are good places for wildlife. $ ^{(5)} $ (provide) food and home for some special kinds of animals and birds is not the only reason why we need to protect wetlands.
Wetlands are important because they also prevent floods from $ ^{(6)} $ (happen). But some people want to change the wetlands to make $ ^{(7)} $ (many) space for farms and buildings.
Luckily, more and more people are beginning to realize the $ ^{(8)} $ ______ (important) of wetlands and wildlife. World Wetlands Day is celebrated on 2 February each year. On that day, we can join in many activities to tell people more about wetlands around the world.
Wetlands are important because they also prevent floods from $ ^{(6)} $ (happen). But some people want to change the wetlands to make $ ^{(7)} $ (many) space for farms and buildings.
Luckily, more and more people are beginning to realize the $ ^{(8)} $ ______ (important) of wetlands and wildlife. World Wetlands Day is celebrated on 2 February each year. On that day, we can join in many activities to tell people more about wetlands around the world.
答案
1. to
2. largest
3. to live
4. or
5. Providing
6. happening
7. more
8. importance
2. largest
3. to live
4. or
5. Providing
6. happening
7. more
8. importance
解析
【分析】
本题为英语语法填空题，需结合固定搭配、词形变化、语法结构等知识逐一分析：
1. 考查固定搭配“be home to”，意为“是……的家园”，需填介词to；
2. 由定冠词the及语境“世界上最大的”，需用形容词large的最高级形式；
3. 考查固定结构“for sb/sth to do sth”，不定式作后置定语，需填不定式结构；
4. 否定句中连接两个并列形容词短语“too high”和“too low”，需用并列连词or；
5. 此处动名词短语作主语，动词需变为动名词形式；
6. 考查固定搭配“prevent...from doing sth”，介词from后接动名词，需填动名词；
7. 此处表示“更多的空间”，需用many的比较级形式；
8. 定冠词the后需接名词，形容词important需转换为名词形式。
【解析】
1. 固定搭配be home to，故填to；
2. 因有定冠词the且表“世界范围的最大”，用large的最高级largest；
3. 固定结构“for...to do sth”作后置定语，故填to live；
4. 否定句中并列成分用or连接，故填or；
5. 动名词短语作主语，provide变为Providing；
6. 固定搭配prevent...from doing，from后接动名词happening；
7. 表“更多的空间”，用many的比较级more；
8. 定冠词后接名词，important的名词形式为importance。
【答案】
1.to 2.largest 3.to live 4.or 5.Providing 6.happening 7.more 8.importance
【知识点】
固定搭配、非谓语动词、形容词最高级
【点评】
本题围绕湿地保护话题，考查初中英语核心语法点，涵盖固定搭配、词形转换、非谓语动词等，难度适中，需学生熟练掌握基础语法规则与词汇变形。
【难度系数】
0.6
本题为英语语法填空题，需结合固定搭配、词形变化、语法结构等知识逐一分析：
1. 考查固定搭配“be home to”，意为“是……的家园”，需填介词to；
2. 由定冠词the及语境“世界上最大的”，需用形容词large的最高级形式；
3. 考查固定结构“for sb/sth to do sth”，不定式作后置定语，需填不定式结构；
4. 否定句中连接两个并列形容词短语“too high”和“too low”，需用并列连词or；
5. 此处动名词短语作主语，动词需变为动名词形式；
6. 考查固定搭配“prevent...from doing sth”，介词from后接动名词，需填动名词；
7. 此处表示“更多的空间”，需用many的比较级形式；
8. 定冠词the后需接名词，形容词important需转换为名词形式。
【解析】
1. 固定搭配be home to，故填to；
2. 因有定冠词the且表“世界范围的最大”，用large的最高级largest；
3. 固定结构“for...to do sth”作后置定语，故填to live；
4. 否定句中并列成分用or连接，故填or；
5. 动名词短语作主语，provide变为Providing；
6. 固定搭配prevent...from doing，from后接动名词happening；
7. 表“更多的空间”，用many的比较级more；
8. 定冠词后接名词，important的名词形式为importance。
【答案】
1.to 2.largest 3.to live 4.or 5.Providing 6.happening 7.more 8.importance
【知识点】
固定搭配、非谓语动词、形容词最高级
【点评】
本题围绕湿地保护话题，考查初中英语核心语法点，涵盖固定搭配、词形转换、非谓语动词等，难度适中，需学生熟练掌握基础语法规则与词汇变形。
【难度系数】
0.6
