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一、语法选择
Son Doong Cave(洞穴) in Vietnam is the world's 1 cave. It is nearly 150 metres wide, more than 200 metres high and about 9 kilometres long. It is famous 2 one of the 20 record-breaking natural wonders.
Son Doong Cave is in the heart of a national park in Vietnam. It remained undiscovered 3 a local farmer named Ho Khanh found the small opening to the cave in 1991. He told the story of the cave to other villagers, but no one 4 it was true.
Years later, a group of British explorers heard about Khanh's story. They learnt from Khanh that there was a strong, cool wind and the sound of water 5 out of the opening. These were signs showing that there was a large cave. They asked Khanh 6 them find the cave. But Khanh forgot where the opening was. In 2009, Khanh and some explorers finally found the cave again. They went inside and were very 7. They found a large underground river running through the cave! They also found a forest, which is 200 metres 8 ground level. When the sun shines into the cave, it's really beautiful.
Tourists can now visit the cave, 9 it's not easy. If you want to visit the world's largest cave, you may 10 rivers, climb up walls and get very muddy(沾满泥的)!
1. A. large B. larger C. largest
2. A. as B. for C. of
3. A. when B. although C. until
4. A. think B. thinks C. thought
5. A. come B. coming C. to come
6. A. help B. helped C. to help
7. A. surprise B. surprised C. surprising
8. A. above B. below C. over
9. A. but B. so C. because
10. A. cross B. crossing C. to cross
Son Doong Cave(洞穴) in Vietnam is the world's 1 cave. It is nearly 150 metres wide, more than 200 metres high and about 9 kilometres long. It is famous 2 one of the 20 record-breaking natural wonders.
Son Doong Cave is in the heart of a national park in Vietnam. It remained undiscovered 3 a local farmer named Ho Khanh found the small opening to the cave in 1991. He told the story of the cave to other villagers, but no one 4 it was true.
Years later, a group of British explorers heard about Khanh's story. They learnt from Khanh that there was a strong, cool wind and the sound of water 5 out of the opening. These were signs showing that there was a large cave. They asked Khanh 6 them find the cave. But Khanh forgot where the opening was. In 2009, Khanh and some explorers finally found the cave again. They went inside and were very 7. They found a large underground river running through the cave! They also found a forest, which is 200 metres 8 ground level. When the sun shines into the cave, it's really beautiful.
Tourists can now visit the cave, 9 it's not easy. If you want to visit the world's largest cave, you may 10 rivers, climb up walls and get very muddy(沾满泥的)!
1. A. large B. larger C. largest
2. A. as B. for C. of
3. A. when B. although C. until
4. A. think B. thinks C. thought
5. A. come B. coming C. to come
6. A. help B. helped C. to help
7. A. surprise B. surprised C. surprising
8. A. above B. below C. over
9. A. but B. so C. because
10. A. cross B. crossing C. to cross
答案
1.C 2.A 3.C 4.C 5.B 6.C 7.B 8.B 9.A 10.A
解析
【分析】
解答本题需结合语境、固定搭配及基础语法规则，逐一分析每个空格：先理解句子含义，再判断选项对应的语法点（如最高级、时态、非谓语、介词、连词等），排除不符合规则的选项，选出正确答案。
【解析】
1. 句意：越南的Son Doong洞穴是世界上最大的洞穴。三者及以上范围比较用形容词最高级，large的最高级为largest，选C。
2. 固定搭配：be famous as意为“作为……而著名”，be famous for意为“因……而著名”。此处指作为20个破纪录自然奇观之一而著名，用as，选A。
3. 连词用法：not...until是固定结构，意为“直到……才”，句意：它直到1991年当地农民发现洞穴小入口才被发现，选C。
4. 时态：全文为一般过去时，no one作主语，谓语动词用过去式thought，选C。
5. 非谓语动词：there be句型中，后面的动词用非谓语形式，wind和water与come是主动关系，用现在分词coming作定语，选B。
6. 固定搭配：ask sb to do sth意为“要求某人做某事”，用to help，选C。
7. 形容词辨析：修饰人（they指探险者）用surprised（感到惊讶的），surprising修饰物，选B。
8. 介词辨析：地下森林应在地面以下，below意为“在……下方”，above指上方，over指垂直上方，选B。
9. 连词辨析：前半句“游客可参观”与后半句“不容易”是转折关系，用but，选A。
10. 情态动词用法：情态动词may后接动词原形，用cross，选A。
【答案】
1.C 2.A 3.C 4.C 5.B 6.C 7.B 8.B 9.A 10.A
【知识点】
形容词最高级；固定搭配；时态；非谓语动词；介词辨析
【点评】
本题为初中英语基础语法选择题，考查核心是常见语法规则与固定搭配，难度适中，需结合语境分析选项，属于常规题型。
【难度系数】
0.6
解答本题需结合语境、固定搭配及基础语法规则，逐一分析每个空格：先理解句子含义，再判断选项对应的语法点（如最高级、时态、非谓语、介词、连词等），排除不符合规则的选项，选出正确答案。
【解析】
1. 句意：越南的Son Doong洞穴是世界上最大的洞穴。三者及以上范围比较用形容词最高级，large的最高级为largest，选C。
2. 固定搭配：be famous as意为“作为……而著名”，be famous for意为“因……而著名”。此处指作为20个破纪录自然奇观之一而著名，用as，选A。
3. 连词用法：not...until是固定结构，意为“直到……才”，句意：它直到1991年当地农民发现洞穴小入口才被发现，选C。
4. 时态：全文为一般过去时，no one作主语，谓语动词用过去式thought，选C。
5. 非谓语动词：there be句型中，后面的动词用非谓语形式，wind和water与come是主动关系，用现在分词coming作定语，选B。
6. 固定搭配：ask sb to do sth意为“要求某人做某事”，用to help，选C。
7. 形容词辨析：修饰人（they指探险者）用surprised（感到惊讶的），surprising修饰物，选B。
8. 介词辨析：地下森林应在地面以下，below意为“在……下方”，above指上方，over指垂直上方，选B。
9. 连词辨析：前半句“游客可参观”与后半句“不容易”是转折关系，用but，选A。
10. 情态动词用法：情态动词may后接动词原形，用cross，选A。
【答案】
1.C 2.A 3.C 4.C 5.B 6.C 7.B 8.B 9.A 10.A
【知识点】
形容词最高级；固定搭配；时态；非谓语动词；介词辨析
【点评】
本题为初中英语基础语法选择题，考查核心是常见语法规则与固定搭配，难度适中，需结合语境分析选项，属于常规题型。
【难度系数】
0.6
二、完形填空
You must know a popular song about Lake Baikal. Then what do you 11 about Lake Baikal?
Lake Baikal in Russia is one of the most 12 lakes in the world. It has a history of 25 million years. It's also the deepest freshwater lake in the world. It's up to 1,620 metres deep. 13, it's not only a lake but also the future fifth ocean with nearly 20% of the planet's unfrozen fresh water in the world. The water is 14 clean that people can drink it directly(直接地).
Lake Baikal is in the 15 of the banana and people also think it looks like a crescent(月牙形) moon. Lake Baikal is beautiful and a lot of 16 come to visit it every year. They usually come in summer. It is not cold then. They can 17 the blue water and the green mountains. However, some visitors prefer(更喜欢) to come in winter. 18 it is freezing, they can have fun on the ice. The ice can be up to 60 cm 19. They feel free to do whatever they like, without worrying about 20 into the water.
It's a place worth visiting.
11. A. worry
B. dream
C. care
D. know
12. A. common
B. ancient
C. difficult
D. dangerous
13. A. At first
B. For example
C. In fact
D. At most
14. A. so
B. too
C. like
D. as
15. A. shape
B. place
C. front
D. control
16. A. volunteers
B. climbers
C. tourists
D. keepers
17. A. enjoy
B. repair
C. copy
D. develop
18. A. Because of
B. Even though
C. So that
D. What's more
19. A. long
B. large
C. wide
D. thick
20. A. throwing
B. cutting
C. leading
D. falling
You must know a popular song about Lake Baikal. Then what do you 11 about Lake Baikal?
Lake Baikal in Russia is one of the most 12 lakes in the world. It has a history of 25 million years. It's also the deepest freshwater lake in the world. It's up to 1,620 metres deep. 13, it's not only a lake but also the future fifth ocean with nearly 20% of the planet's unfrozen fresh water in the world. The water is 14 clean that people can drink it directly(直接地).
Lake Baikal is in the 15 of the banana and people also think it looks like a crescent(月牙形) moon. Lake Baikal is beautiful and a lot of 16 come to visit it every year. They usually come in summer. It is not cold then. They can 17 the blue water and the green mountains. However, some visitors prefer(更喜欢) to come in winter. 18 it is freezing, they can have fun on the ice. The ice can be up to 60 cm 19. They feel free to do whatever they like, without worrying about 20 into the water.
It's a place worth visiting.
11. A. worry
B. dream
C. care
D. know
12. A. common
B. ancient
C. difficult
D. dangerous
13. A. At first
B. For example
C. In fact
D. At most
14. A. so
B. too
C. like
D. as
15. A. shape
B. place
C. front
D. control
16. A. volunteers
B. climbers
C. tourists
D. keepers
17. A. enjoy
B. repair
C. copy
D. develop
18. A. Because of
B. Even though
C. So that
D. What's more
19. A. long
B. large
C. wide
D. thick
20. A. throwing
B. cutting
C. leading
D. falling
答案
11.D 12.B 13.C 14.A 15.A 16.C 17.A 18.B 19.D 20.D
解析
【分析】
解答本题需先通读全文，把握文章主旨（介绍贝加尔湖的特点、外观及旅游情况），再结合每个空的上下文语境、词义辨析、固定搭配等逐一分析选项，最后验证答案是否符合文意。
【解析】
11. 前文提到“你一定知道关于贝加尔湖的流行歌曲”，此处询问“你对贝加尔湖了解什么”，know about意为“了解”，符合语境，故选D。
12. 后文提到贝加尔湖有2500万年历史，说明它是古老的，ancient意为“古老的”，故选B。
13. 前文介绍贝加尔湖的基本情况，后文进一步说明它不仅是湖还是未来第五大洋，in fact意为“事实上”，用于补充说明实际情况，故选C。
14. 此处考查固定搭配so...that...，意为“如此……以至于……”，表示水干净到可直接饮用，故选A。
15. 后文提到贝加尔湖像月牙形，说明此处描述的是它的形状，shape意为“形状”，故选A。
16. 后文提到“come to visit it every year”，说明是游客来参观，tourists意为“游客”，故选C。
17. 夏天来的游客可以欣赏蓝水和青山，enjoy意为“欣赏”，符合语境，故选A。
18. 前文说游客更喜欢冬天来，后文说冬天很冷但能在冰上玩，even though意为“即使”，表让步关系，故选B。
19. 描述冰的厚度，thick意为“厚的”，符合“冰厚达60厘米”的语境，故选D。
20. 冬天在冰上玩不用担心掉进水里，fall into意为“掉进”，故选D。
【答案】
11.D 12.B 13.C 14.A 15.A 16.C 17.A 18.B 19.D 20.D
【知识点】
完形填空词义辨析、固定搭配运用、语境理解
【点评】
本文围绕贝加尔湖展开，考查词汇在具体语境中的运用，需结合上下文逻辑和词义选择，整体难度适中，适合学生练习。
【难度系数】
0.5
解答本题需先通读全文，把握文章主旨（介绍贝加尔湖的特点、外观及旅游情况），再结合每个空的上下文语境、词义辨析、固定搭配等逐一分析选项，最后验证答案是否符合文意。
【解析】
11. 前文提到“你一定知道关于贝加尔湖的流行歌曲”，此处询问“你对贝加尔湖了解什么”，know about意为“了解”，符合语境，故选D。
12. 后文提到贝加尔湖有2500万年历史，说明它是古老的，ancient意为“古老的”，故选B。
13. 前文介绍贝加尔湖的基本情况，后文进一步说明它不仅是湖还是未来第五大洋，in fact意为“事实上”，用于补充说明实际情况，故选C。
14. 此处考查固定搭配so...that...，意为“如此……以至于……”，表示水干净到可直接饮用，故选A。
15. 后文提到贝加尔湖像月牙形，说明此处描述的是它的形状，shape意为“形状”，故选A。
16. 后文提到“come to visit it every year”，说明是游客来参观，tourists意为“游客”，故选C。
17. 夏天来的游客可以欣赏蓝水和青山，enjoy意为“欣赏”，符合语境，故选A。
18. 前文说游客更喜欢冬天来，后文说冬天很冷但能在冰上玩，even though意为“即使”，表让步关系，故选B。
19. 描述冰的厚度，thick意为“厚的”，符合“冰厚达60厘米”的语境，故选D。
20. 冬天在冰上玩不用担心掉进水里，fall into意为“掉进”，故选D。
【答案】
11.D 12.B 13.C 14.A 15.A 16.C 17.A 18.B 19.D 20.D
【知识点】
完形填空词义辨析、固定搭配运用、语境理解
【点评】
本文围绕贝加尔湖展开，考查词汇在具体语境中的运用，需结合上下文逻辑和词义选择，整体难度适中，适合学生练习。
【难度系数】
0.5
