Unit 4 The Wonders of Nature单词短语句型语法（教材考点精练）英语新教材鲁教版五四学制八年级上册

**基本信息** 围绕自然主题，构建“词汇-语法-语篇”三级训练体系，聚焦语言能力与思维品质提升。 **专项设计** |模块|题量/典例|题型特征|知识逻辑| |----|-----------|----------|----------| |小题夯基|60分（词汇拼写/词形转换/单选）|基础词汇与语法精准训练|自然主题核心词汇积累→基础语法规则应用| |综合攻坚|40分（句型转换/补全对话/语法选择）|语法结构转换与语境应用|单句语法变式→语篇综合运用，衔接语言能力与思维品质|

Unit 4 The Wonders of Nature 单元重点单词短语句型语法精练 （时间：60分钟，满分：100分） 教材考点概览 考点夯基攻坚 小题夯基·精准突破 一、根据首字母提示写单词（每小题 1 分，共 10 分） 1. We can see many w______ of nature in Guilin. 【答案】wonders 【解析】句意：我们在桂林能看见许多自然奇观。many 后接可数名词复数；wonder 奇迹，复数 wonders。 2. The sun r______ in the east every morning. 【答案】rises 【解析】句意：太阳每天清晨从东方升起。客观真理用一般现在时；主语 the sun 三单，rise 升起，三单形式 rises。 3. The snow c______ the whole hill in winter. 【答案】covers 【解析】句意：冬天大雪覆盖了整座小山。客观现象一般现在时，cover 覆盖，主语 snow 不可数，三单 covers。 4. We are a______ at the beautiful waterfall here. 【答案】amazed 【解析】固定搭配 be amazed at 对…… 感到惊奇；主语是人，用 - ed 形容词 amazed。 5. The mountain is very d______, so few people go inside. 【答案】deep 【解析】句意：这片山林很深，很少有人进去。deep 形容词，深的，作表语。 6. Can you d______ your favourite natural scenery to us? 【答案】describe 【解析】句意：你能给我们描述一下你最喜欢的自然风光吗？情态动词 can 后加动词原形；describe 描述。 7. We should p______ our environment and natural resources. 【答案】protect 【解析】句意：我们应当保护环境和自然资源。should 情态动词后接动词原形，protect 保护。 8. The b______ sunshine makes the lake look more beautiful. 【答案】bright 【解析】句意：明媚的阳光让湖面看起来更美。bright 明亮的，形容词修饰名词 sunshine。 9. The tree is h______ enough to touch the clouds. 【答案】high 【解析】句意：这棵树很高，能够触到云朵。high 高的，符合语境。 10. It’s s______ that no one knew the secret before. 【答案】surprising 【解析】句意：令人惊讶的是之前没人知道这个秘密。修饰整件事情用 - ing 形容词 surprising。 二、根据汉语提示写出单词正确形式（每小题 1 分，共 10 分） 1. We love the ______ (自然的) scenery in mountains. 【答案】natural 【解析】形容词 natural 修饰名词 scenery；natural 自然的。 2. The view is so ______ (绝妙的) that all visitors like it. 【答案】wonderful 【解析】be 动词后接形容词作表语，wonderful 绝妙的、壮丽的。 3. The wind blew ______ (轻柔地) across the lake last night. 【答案】gently 【解析】副词修饰动词 blew；gently 轻柔地。 4. The ______ (深度) of the river is more than ten metres. 【答案】depth 【解析】定冠词 the 后接名词；depth 深度，名词。 5. I feel ______ (惊奇的) to see such a big waterfall. 【答案】amazed 【解析】主语是人，be amazed 感到惊奇的，-ed 形容词修饰人。 6. The rain ______ (落下) down all day yesterday. 【答案】fell 【解析】yesterday 一般过去时；fall 落下，过去式 fell。 7. We can enjoy the beauty ______ (日夜) in this park. 【答案】day and night 【解析】固定短语 day and night 日日夜夜。 8. The mountain stands at a ______ (高度) of 2000 metres. 【答案】height 【解析】固定搭配 at the height of 在…… 高度，height 高度（名词）。 9. We all want to see the ______ (瀑布) in Huangguoshu. 【答案】waterfall/waterfalls 【解析】waterfall 瀑布，可数名词，单复数均可。 10. The forest is ______ (寂静的) without any wind. 【答案】silent 【解析】silent 寂静的，形容词作表语。 三、用所给词的适当形式填空（每小题 1 分，共 10 分） 1. It is ______ (amaze) to watch the sunrise on the mountain top. 【答案】amazing 【解析】不定式整件事作主语，事物用 - ing 形容词 amazing 令人惊奇的。 2. My sister was ______ (surprise) at the strange shape of rocks. 【答案】surprised 【解析】主语是人，surprised 感到惊讶的。 3. The sun shines ______ (bright) in summer. 【答案】brightly 【解析】副词修饰动词 shines；bright 的副词形式 brightly。 4. We should keep ______ (protect) our natural world. 【答案】protecting 【解析】固定搭配 keep doing sth. 持续做某事。 5. He is old enough ______ (understand) the beauty of nature. 【答案】to understand 【解析】adj.+enough to do sth. 足够…… 可以做某事。 6. The mountains are so high that they ______ (reach) the clouds. 【答案】reach 【解析】客观景色一般现在时，主语 they 谓语用原形 reach。 7. ______ (nature) resources are important for all living things. 【答案】Natural 【解析】形容词修饰名词 resources；natural 自然的，句首大写。 8. The little girl felt ______ (silence) in the deep forest. 【答案】silent 【解析】feel 系动词后接形容词，silent 寂静的。 9. It takes time ______ (enjoy) the wonderful views here. 【答案】to enjoy 【解析】固定句型 It takes sb. time to do sth. 花费时间做某事。 10. The lake looks like a big ______ (magic) mirror. 【答案】magical 【解析】形容词 magical 神奇的，修饰名词 mirror。 四、单项选择（每小题 2 分，共 30 分） 1. The earth ______ around the sun all the time. A. move B. moves C. moved D. will move 【答案】B 【解析】地球绕着太阳转是客观真理，永远用一般现在时；主语三单，谓语用 moves。 2. We were amazed ______ the clear lake and green hills. A. at B. in C. for D. with 【答案】A 【解析】固定搭配 be amazed at sth. 对事物感到惊奇。 3. The box is light enough ______ for the kid to carry. A. carry B. carrying C. to carry D. carried 【答案】C 【解析】enough to do sth. 足够…… 去做某事，不定式作结果状语。 4. It is ______ interesting ______ I want to visit the waterfall again. A. too; to B. so; that C. such; that D. enough; to 【答案】B 【解析】so + 形容词 + that 从句 如此…… 以至于……；too…to 不能接从句；such 修饰名词。 5. —How do you like the natural scenery? —It’s ______ amazing! A. truly B. bright C. deep D. high 【答案】A 【解析】truly 副词，真正地、实在是；修饰形容词 amazing，符合句意。 6. Don’t cover the table ______ newspapers. A. on B. with C. by D. in 【答案】B 【解析】cover …with… 用…… 把…… 盖住，固定短语。 7. It’s important ______ us ______ save wild animals. A. for; to B. of; to C. for; / D. of; / 【答案】A 【解析】It’s +adj.+for sb. to do sth. 做某事对某人来说是…… 的（形容事情属性用 for）。 8. The wind ______ gently and the leaves fall down slowly. A. blow B. blows C. blew D. blowing 【答案】B 【解析】并列句时态一致，后半句 fall 原形，客观景象一般现在时；wind 不可数名词，三单 blows。 9. All year ______, the water in the stream is clean. A. round B. about C. over D. along 【答案】A 【解析】all year round 终年、一年四季，固定短语。 10. The story sounds ______, and we all feel interested. A. amazed B. surprising C. surprised D. happily 【答案】B 【解析】主语 story 是事物，用 - ing 形容词 surprising 令人惊奇的。 11. He refused ______ the dirty water into the river. A. pour B. pouring C. to pour D. poured 【答案】C 【解析】refuse to do sth. 拒绝做某事，固定不定式搭配。 12. The mountain is ______ high for little kids to climb up. A. so B. such C. too D. enough 【答案】C 【解析】too+adj.+to do sth. 太…… 而不能…… 固定结构。 13. Look! The sun ______ behind the mountains now. A. rise B. rises C. is rising D. will rise 【答案】C 【解析】look、now 是现在进行时标志，此刻太阳正在升起。 14.We can enjoy beautiful views day ______ night in this area. A. and B. or C. but D. so 【答案】A 【解析】day and night 日日夜夜，固定短语。 15. —Why do you love nature? —______ it brings us lots of beauty and joy. A. Because B. If C. Though D. When 【答案】A 【解析】why 提问必须用 because 回答原因。 综合攻坚·知能拔高 五、句型转换（共 15 小题，每空 1 分，满分 15 分） 1. The mountain is very high. It can reach the clouds.（合并为 so…that… 结果状语从句） The mountain is ____ high ____ it can reach the clouds. 【答案】so ; that 【解析】so + 形容词 / 副词 + that + 完整陈述句，意为 “如此…… 以至于……”；high 是形容词，用 so 修饰，that 引导结果从句，单元核心句型。 2. The tree is tall enough to cover the whole hill.（改为同义句：too…to… 结构） The tree is ____ short ____ cover the whole hill. 【答案】not ; enough to 【解析】adj. + enough to do sth.（足够…… 可以做）的否定同义转换：not + 反义词 + enough to do；tall 反义词 short，句意：这棵树不算矮，完全能够盖住整座山。 ⚠ 易错提醒：too…to… 本身表否定，不能直接套用，本单元必考互换格式： tall enough to do = not short enough to do It is amazing to watch the sunrise on the mountain top.（改为同义句，不定式前置作主语） 3. ____ the sunrise on the mountain top is amazing. 【答案】To watch 【解析】原句 It 为形式主语，真正主语是后面的动词不定式；可直接将不定式 To watch 置于句首充当主语，句式等价。 4. The sun rises in the east and sets in the west.（改为一般疑问句） ____ the sun ____ in the east and sets in the west? 【答案】Does ; rise 【解析】太阳东升西落是客观自然真理，永远用一般现在时；主语 the sun 是第三人称单数，变疑问句需加助动词 Does，后面谓语动词还原为原形 rise。 5. We should protect all the natural wonders around us.（改为否定句） We ____ ____ all the natural wonders around us. 【答案】shouldn’t protect 【解析】should 是情态动词，情态动词变否定直接在其后加 not，缩写为 shouldn’t，后面必须接动词原形。 6. They are amazed at the magical shapes of rocks.（对划线部分 the magical shapes of rocks 提问） ____ ____ they amazed at? 【答案】What are 【解析】划线部分是事物（岩石的奇妙形状），疑问词用 What；句子含 be 动词 are，直接将 are 提前放在主语前构成疑问语序。 7. The waterfall is deep enough for us to swim in.（改为 too…to… 否定句） The waterfall is ____ shallow ____ swim in. 【答案】not ; enough to 【解析】deep enough to do = not shallow enough to do 足够深可以游泳 = 不算浅，能够游泳；shallow 浅的，是 deep 的反义词。 8. The water is so clear that we can see fish in it.（改为 enough to do 句型） The water is ____ ____ for us to see fish in it. 【答案】clear enough 【解析】so + 形容词 + that 从句 = 形容词 + enough to do sth.；clear 清晰的，置于 enough 前面，固定语序：形前 enough 后。 9. People can see beautiful views all year round here.（改为被动语态） Beautiful views ____ ____ by people all year round here. 【答案】can be seen 【解析】情态动词 can 被动结构：can + be + 动词过去分词；see 的过去分词 seen。句意：一年四季美景都能被人们观赏到。 10. The wind blows gently across the forest every day.（对划线部分 gently 提问） ____ ____ the wind blow across the forest every day? 【答案】How does 【解析】gently（轻柔地）是方式副词，对方式提问用疑问词 How；主语 the wind 三单，一般现在时加助动词 does，动词还原 blow。 11. It takes us two hours to climb up the mountain.（同义句转换，用 spend 改写） We ____ two hours ____ up the mountain. 【答案】spend ; climbing 【解析】固定句型互换：It takes sb. + 时间 + to do sth. = sb. spend (s) + 时间 + (in) doing sth.；主语 we 非三单，一般现在时用 spend；climb 变动名词 climbing。 12. The mountain is too high for little children to climb.（改为 so…that… 句型） The mountain is ____ high ____ little children can’t climb it. 【答案】so ; that 【解析】too…to…（太…… 而不能）= so + 形容词 + that + 否定从句；so 修饰 high，that 引导结果从句，从句自带否定含义。 13. He was surprised at the wonderful natural sights.（改为 - ing 形容词主语句式） The wonderful natural sights ____ ____ to him. 【答案】were surprising 【解析】surprised 修饰人（人感到惊讶）；surprising 修饰事物（事物令人惊奇）；主语 sights 复数，一般过去时 be 动词用 were。 14. We can enjoy the beauty of nature day and night.（改为一般疑问句） ____ you ____ the beauty of nature day and night? 【答案】Can ; enjoy 【解析】句子含情态动词 can，变疑问句直接将 can 提前至句首，后面动词用原形 enjoy。 15. The river is 50 metres deep.（对划线部分 50 metres 提问） ____ ____ is the river? 【答案】How deep 【解析】对深度数字提问，固定疑问词组 How deep（多深），贴合单元词汇 depth 深度考点。 六、补全对话（每空 2 分，共 10 分） 从方框中选择句子补全对话（两项多余） A. Where will you go? B. Why do you want to go there? C. How do you like natural wonders? D. It sounds wonderful. E. I plan to visit Huangguoshu Waterfall. F. It’s too boring. G. What can we see there? A: Hi, Tom. Summer holiday is coming. 1.______ B: I will go to Guizhou. 2.______ A: Huangguoshu Waterfall? Great! 3.______ B: Because it is one of the greatest natural wonders in China. A: 4.______ B: We can see clear water, big waterfall and green mountains all year round. A: 5.______ I hope I can go with you one day. 【答案】 1.A 2.E 3.B 4.G 5.D 【逐题解析】 1.A：下文回答地点 Guizhou，问句询问将要去哪里。 2.E：后文提到黄果树瀑布，此处说明计划去游览黄果树瀑布。 3.B：下文用 Because 回答原因，问句用 why 提问缘由。 4.G：答句介绍可以观赏的景色，问句询问在那里能看到什么。 5.D：听完介绍发出感慨：听起来太棒了。 七、语法选择（每小题 1.5 分，共 15 分） 通读短文，从 A/B/C 三个选项中选出最佳答案 Nature is full 1 amazing wonders. Many students love travelling 2 enjoy natural views. The sun 3 in the east and sets in the west every day. It 4 bright sunshine to the whole world. Some mountains are 5 high that they reach the clouds. They are tall enough 6 touch the sky. We are always amazed 7 these fantastic sights. It’s important 8 us 9 protect nature. If we keep 10 our environment clean, we can enjoy beautiful wonders day and night all year round. 1. A. of B. for C. with 2. A. and B. to C. for 3. A. rise B. rises C. rose 4. A. bring B. brings C. brought 5. A. So B. such C. too 6. A. touch B. touching C. to touch 7. A. At B. in C. for 8. A. of B. for C. to 9. A. to B. / C. with 10. A. keep B. keeping C. to keep 【答案】1.A 2.B 3.B 4.B 5.A 6.C 7.A 8.B 9.A 10.B 【解析】 full of 充满…… 固定搭配 to enjoy 不定式作目的状语：旅行是为了欣赏风景 客观真理一般现在时，sun 三单 rises 一般现在时，it 三单 brings so…that… 如此…… 以至于…… 修饰形容词 high enough to do sth. 不定式结构 be amazed at 对…… 惊奇 It’s +adj.+for sb. to do sth. 固定句型 不定式 to protect 作真正主语 keep doing sth. 持续做某事 学科网（北京）股份有限公司1 / 10 学科网（北京）股份有限公司 $ Unit 4 The Wonders of Nature 单元重点单词短语句型语法精练 （时间：60分钟，满分：100分） 教材考点概览 考点夯基攻坚 小题夯基·精准突破 一、根据首字母提示写单词（每小题 1 分，共 10 分） 1. We can see many w______ of nature in Guilin. 2. The sun r______ in the east every morning. 3. The snow c______ the whole hill in winter. 4. We are a______ at the beautiful waterfall here. 5. The mountain is very d______, so few people go inside. 6. Can you d______ your favourite natural scenery to us? 7. We should p______ our environment and natural resources. 8. The b______ sunshine makes the lake look more beautiful. 9. The tree is h______ enough to touch the clouds. 10. It’s s______ that no one knew the secret before. 二、根据汉语提示写出单词正确形式（每小题 1 分，共 10 分） 1. We love the ______ (自然的) scenery in mountains. 2. The view is so ______ (绝妙的) that all visitors like it. 3. The wind blew ______ (轻柔地) across the lake last night. 4. The ______ (深度) of the river is more than ten metres. 5. I feel ______ (惊奇的) to see such a big waterfall. 6. The rain ______ (落下) down all day yesterday. 7. We can enjoy the beauty ______ (日夜) in this park. 8. The mountain stands at a ______ (高度) of 2000 metres. 9. We all want to see the ______ (瀑布) in Huangguoshu. 10. The forest is ______ (寂静的) without any wind. 三、用所给词的适当形式填空（每小题 1 分，共 10 分） 1. It is ______ (amaze) to watch the sunrise on the mountain top. 2. My sister was ______ (surprise) at the strange shape of rocks. 3. The sun shines ______ (bright) in summer. 4. We should keep ______ (protect) our natural world. 5. He is old enough ______ (understand) the beauty of nature. 6. The mountains are so high that they ______ (reach) the clouds. 7. ______ (nature) resources are important for all living things. 8. The little girl felt ______ (silence) in the deep forest. 9. It takes time ______ (enjoy) the wonderful views here. 10. The lake looks like a big ______ (magic) mirror. 四、单项选择（每小题 2 分，共 30 分） 1. The earth ______ around the sun all the time. A. move B. moves C. moved D. will move 2. We were amazed ______ the clear lake and green hills. A. at B. in C. for D. with 3. The box is light enough ______ for the kid to carry. A. carry B. carrying C. to carry D. carried 4. It is ______ interesting ______ I want to visit the waterfall again. A. too; to B. so; that C. such; that D. enough; to 5. —How do you like the natural scenery? —It’s ______ amazing! A. truly B. bright C. deep D. high 6. Don’t cover the table ______ newspapers. A. on B. with C. by D. in 7. It’s important ______ us ______ save wild animals. A. for; to B. of; to C. for; / D. of; / 8. The wind ______ gently and the leaves fall down slowly. A. blow B. blows C. blew D. blowing 9. All year ______, the water in the stream is clean. A. round B. about C. over D. along 10. The story sounds ______, and we all feel interested. A. amazed B. surprising C. surprised D. happily 11. He refused ______ the dirty water into the river. A. pour B. pouring C. to pour D. poured 12. The mountain is ______ high for little kids to climb up. A. so B. such C. too D. enough 13. Look! The sun ______ behind the mountains now. A. rise B. rises C. is rising D. will rise We can enjoy beautiful views day ______ night in this area. 14. A. and B. or C. but D. so 15. —Why do you love nature? —______ it brings us lots of beauty and joy. A. Because B. If C. Though D. When 综合攻坚·知能拔高 五、句型转换（共 15 小题，每空 1 分，满分 15 分） 1. The mountain is very high. It can reach the clouds.（合并为 so…that… 结果状语从句） The mountain is ____ high ____ it can reach the clouds. 2. The tree is tall enough to cover the whole hill.（改为同义句：too…to… 结构） The tree is ____ short ____ cover the whole hill. 3. ____ the sunrise on the mountain top is amazing. 4. The sun rises in the east and sets in the west.（改为一般疑问句） ____ the sun ____ in the east and sets in the west? 5. We should protect all the natural wonders around us.（改为否定句） We ____ ____ all the natural wonders around us. 6. They are amazed at the magical shapes of rocks.（对划线部分 the magical shapes of rocks 提问） ____ ____ they amazed at? 7. The waterfall is deep enough for us to swim in.（改为 too…to… 否定句） The waterfall is ____ shallow ____ swim in. 8. The water is so clear that we can see fish in it.（改为 enough to do 句型） The water is ____ ____ for us to see fish in it. 9. People can see beautiful views all year round here.（改为被动语态） Beautiful views ____ ____ by people all year round here. 10. The wind blows gently across the forest every day.（对划线部分 gently 提问） ____ ____ the wind blow across the forest every day? 11. It takes us two hours to climb up the mountain.（同义句转换，用 spend 改写） We ____ two hours ____ up the mountain. 12. The mountain is too high for little children to climb.（改为 so…that… 句型） The mountain is ____ high ____ little children can’t climb it. 13. He was surprised at the wonderful natural sights.（改为 - ing 形容词主语句式） The wonderful natural sights ____ ____ to him. 14. We can enjoy the beauty of nature day and night.（改为一般疑问句） ____ you ____ the beauty of nature day and night? 15. The river is 50 metres deep.（对划线部分 50 metres 提问） ____ ____ is the river? 六、补全对话（每空 2 分，共 10 分） 从方框中选择句子补全对话（两项多余） A. Where will you go? B. Why do you want to go there? C. How do you like natural wonders? D. It sounds wonderful. E. I plan to visit Huangguoshu Waterfall. F. It’s too boring. G. What can we see there? A: Hi, Tom. Summer holiday is coming. 1.______ B: I will go to Guizhou. 2.______ A: Huangguoshu Waterfall? Great! 3.______ B: Because it is one of the greatest natural wonders in China. A: 4.______ B: We can see clear water, big waterfall and green mountains all year round. A: 5.______ I hope I can go with you one day. 七、语法选择（每小题 1.5 分，共 15 分） 通读短文，从 A/B/C 三个选项中选出最佳答案 Nature is full 1 amazing wonders. Many students love travelling 2 enjoy natural views. The sun 3 in the east and sets in the west every day. It 4 bright sunshine to the whole world. Some mountains are 5 high that they reach the clouds. They are tall enough 6 touch the sky. We are always amazed 7 these fantastic sights. It’s important 8 us 9 protect nature. If we keep 10 our environment clean, we can enjoy beautiful wonders day and night all year round. 1. A. of B. for C. with 2. A. and B. to C. for 3. A. rise B. rises C. rose 4. A. bring B. brings C. brought 5. A. So B. such C. too 6. A. touch B. touching C. to touch 7. A. At B. in C. for 8. A. of B. for C. to 9. A. to B. / C. with 10. A. keep B. keeping C. to keep 学科网（北京）股份有限公司1 / 10 学科网（北京）股份有限公司 $ Unit 4 The Wonders of Nature 单元重点单词短语句型语法精练 （时间：60分钟，满分：100分） 教材考点概览 考点夯基攻坚 小题夯基·精准突破 一、根据首字母提示写单词（每小题 1 分，共 10 分） 1. 【答案】wonders 2.【答案】rises 3. 【答案】covers 4. 【答案】amazed 5. 【答案】deep 6. 【答案】describe 7. 【答案】protect 8. 【答案】bright 9. 【答案】high 10. 【答案】surprising 二、根据汉语提示写出单词正确形式（每小题 1 分，共 10 分） 1. 【答案】natural 2. 【答案】wonderful 3. 【答案】gently 4. 【答案】depth 5. 【答案】amazed 6. 【答案】fell 7. 【答案】day and night 8. 【答案】height 9. 【答案】waterfall/waterfalls 10. 【答案】silent 三、用所给词的适当形式填空（每小题 1 分，共 10 分） 1. 【答案】amazing 2. 【答案】surprised 3.【答案】brightly 4. 【答案】protecting 5. 【答案】to understand 6. 【答案】reach 7. 【答案】Natural 8. 【答案】silent 9. 【答案】to enjoy 10. 【答案】magical 四、单项选择（每小题 2 分，共 30 分） 1. 【答案】B 2. 【答案】A 3. 【答案】C 4. 【答案】B 5. 【答案】A 6. 【答案】B 7. 【答案】A 8. 【答案】B 9. 【答案】A 10. 【答案】B 11. 【答案】C 12. 【答案】C 13. 【答案】C 14. 【答案】A 15. 【答案】A 综合攻坚·知能拔高 五、句型转换（共 15 小题，每空 1 分，满分 15 分） 1.【答案】so ; that 2.【答案】not ; enough to 3. 【答案】To watch 4.【答案】Does ; rise 5. 【答案】shouldn’t protect 6. 【答案】What are 7.【答案】not ; enough to 8. 【答案】clear enough 9. 【答案】can be seen 10.【答案】How does 11. 【答案】spend ; climbing 12. 【答案】so ; that 13. 【答案】were surprising 14. 【答案】Can ; enjoy 15. 【答案】How deep 六、补全对话（每空 2 分，共 10 分） 【答案】1.A 2.E 3.B 4.G 5.D 七、语法选择（每小题 1.5 分，共 15 分） 【答案】1.A 2.B 3.B 4.B 5.A 6.C 7.A 8.B 9.A 10.B 学科网（北京）股份有限公司1 / 10 学科网（北京）股份有限公司 $