Unit 4 课时3 Section A（Grammar Focus）（分层作业）英语新教材人教版八年级下册

Unit 4 The Wonders of Nature 课时3 Section A Grammar Focus 分层作业 一、单词默写。 cubic; mile; pool 二、词组默写。 1. one of the greatest wonders 2. deep-sea animals 3. the biggest desert 4. 立方米 5. 平方千米 三、根据要求完成句子 1. fewer less 2. square kilometers 3. as carefully as 4. travels the farthest 5. much easier than 四 、填写出正确的数字。 1. 21,196 2. 8,450 3. 6,300 4. 36,279 5. 1,235 五、阅读短文，从方框中选择适当的词并用其正确的形式填空（每词限用一次）。 1．second 2．easily 3．when 4．similar 5．area 6．shorter 7．provides 8．plays 9．it 10．of 六、完形填空。 1．D 2．D 3．A 4．C 5．B 6．C 7．D 8．C 9．B 10．B 七、阅读还原。 1．B 2．C 3．D 4．E 任务型阅读。 1．It’s in the south of the world. 2．June, July and August. 3．The north part. 4．The southwestern part of Australia has winter rain. 5．澳大利亚的季节不像我们的。 ( 1 / 7 ) 学科网（北京）股份有限公司 $ Unit 4 The Wonders of Nature 课时3 Section A Grammar Focus 分层作业 核心知识速记 03拓展培优 01基础达标 04思维进阶 02能力提升 ( 词汇 cubic /ˈkjuːbɪk/ adj. 立方的 cubic meter 立方 米 mile /maɪl/ n. 英里 pool /puːl/ n. 池塘；水坑 句型 1. - What is the biggest desert in the world? - It is the Sahara Desert. 2. - How big is it? - It is about 9,000,000 square kilometres in size. 3. - Where is the deepest point in the ocean? - It is in the Mariana Trench. 4. - How deep is it? - It is about 11,000 metres deep. ) 一、单词默写。 1. _______ /ˈkjuːbɪk/ adj. 立方的 2. ________ /maɪl/ n. 英里 3. __________ /puːl/ n. 池塘；水坑 【答案】cubic; mile; pool 二、词组默写。 1. 最伟大的奇观之一_______________________ 2. 深海动物 _______________________ 3. 最大的沙漠 _______________________ 4. cubic meter _______________________ 5. square kilometres _______________________ 【答案】1. one of the greatest wonders 2. deep-sea animals 3. the biggest desert 4. 立方米 5. 平方千米 三、根据要求完成句子 1. 如果开车的人越少，空气污染就会越少。 If ________ people drive cars, there will be ________ air pollution. 2. 月光湖面积2.3平方千米。 Moon Lake is 2.3 ________ ________ in size. 3. 爱丽丝和杰克一样认真地写作业。 Alice does her homework ________ ________ ________ Jack. 4. 中欧班列是从中国开往欧洲距离最远的货运列车。 CR Express is the freight train that ________ ________ ________ from China to Europe. 5. 罗宾认为英语比数学容易得多。 Robin thinks English is ________ ________ ________ maths. 【答案】1. fewer less 2. square kilometers 3. as carefully as 4. travels the farthest 5. much easier than 四 、填写出正确的数字。 1. The Great Wall of China is about _________ (twenty-one thousand, one hundred and ninety-six) kilometres long. 2. (eight thousand, four hundred and fifty) _________ people can fit into this stadium at full capacity. 3. The Yangtze River is approximately _________ (six thousand, three hundred) kilometres in length. 4. (thirty-six thousand, two hundred and seventy-nine) _________ students are currently enrolled at this university. 5. The speed of sound in dry air is about _________ (one thousand, two hundred and thirty-five) kilometres per hour. 【答案】1. 21,196 2. 8,450 3. 6,300 4. 36,279 5. 1,235 五、阅读短文，从方框中选择适当的词并用其正确的形式填空（每词限用一次）。 two  similar  it  play  short  when  of  provide  easy  area Today let me introduce one of the Chinese wonders—the Yellow River. The Yellow River is the 1 longest river in China. The “yellow” in its name is from the mud and sand. About ninety percent of the mud and sand in the Yellow River comes from the Loess Plateau(黄土高原). The Loess Plateau is loose(松软的) and washed away 2 . As a result, a lot of mud and sand go into the Yellow River 3 the rainy season comes. The Yellow River starts from the Qinghai-Tibet Plateau. The river’s shape is 4 to “几”. It runs from the west to the east through nine provinces and finally runs into the Bohai Sea. It covers a(n) 5 of about 752,443 square kilometres. The Yellow River is about 5,464 kilometres long. In fact, it is a little 6 than the Yangtze River. In Chinese history, the Yellow River is the most important birthplace. Ancient Chinese people lived around the river and created a rich culture. Today, the area around the Yellow River is very important for farming. The Yellow River also 7 water for factories and people’s lives. What’s more, the Yellow River 8 an important role in Chinese culture. People created a lot of poems, paintings, and songs about 9 . The Yellow River is a symbol 10 China. We call it the “Mother River”. 【答案】1．second 2．easily 3．when 4．similar 5．area 6．shorter 7．provides 8．plays 9．it 10．of 【导语】本文是一篇说明文，主要介绍了中国的奇观之一 —— 黄河，包括它的长度、流经区域、地理特征，以及它在中华文明和中国文化中的重要地位，被誉为“母亲河”。 1．句意：黄河是中国第二长的河流。根据常识，黄河是中国第二长河。“the+序数词+形容词最高级”表示“第几最……的”。因此用two的序数词second。故填second。 2．句意：黄土高原土质疏松，很容易被冲走。根据“The Loess Plateau is loose(松软的) and washed away...”可知，此处需要副词修饰动词短语“washed away”。结合备选词，“easy”符合语境。因此将形容词“easy”变为副词easily。故填easily。 3．句意：结果，当雨水来临时，大量的泥沙进入黄河。根据“As a result, a lot of mud and sand go into the Yellow River...the rainy season comes.”可知，此处应填连词连接两个完整句子。结合备选词，“when”引导时间状语从句，表示“当……时候”，符合语境。故填when。 4．句意：这条河的形状类似“几” 字。根据“The river’s shape is...to “几”.”及备选词汇可知，此处应填形容词。“be similar to”是固定搭配，意为“与……相似”，因此用形容词similar。故填similar。 5．句意：它覆盖了大约 752,443 平方公里的区域。根据“about 752,443 square kilometres”及备选词汇可知，此处在介绍面积。“cover an area of...”是固定搭配，意为“覆盖……的面积”符合语境。故填area。 6．句意：事实上，它比长江短一点。根据“5,464 kilometres long”及备选词汇可知，此处与介绍长度相关。根据句中的“than” 可知，此处需要形容词的比较级，因此将形容词“short”变为比较级shorter。故填shorter。 7．句意：黄河也为工厂和人们的生活提供水源。根据“The Yellow River also...water for factories and people’s lives.”可知，此处应填动词作谓语。结合备选词，“provide sth. for sb./sth.” 是固定搭配，意为“为……提供某物”符合语境。句子主语“The Yellow River”是第三人称单数，且时态为一般现在时，因此动词用第三人称单数形式provides。故填provides。 8．句意：此外，黄河在中国文化中扮演着重要的角色。根据“What’s more, the Yellow River...an important role in Chinese culture.”及备选词汇可知，“play an important role in...”是固定搭配，意为“在……中扮演重要角色”。句子主语“The Yellow River”是第三人称单数，且时态为一般现在时，因此动词用第三人称单数形式plays。故填plays。 9．句意：人们创作了很多关于它的诗歌、绘画和歌曲。根据“People created a lot of poems, paintings, and songs about...”可知，此处应填名词性质的代词。结合备选词，此处用代词指代前文提到的“The Yellow River”，因此用代词it。故填it。 10．句意：黄河是中国的象征。根据“The Yellow River is a symbol...China. We call it the ‘Mother River’.”及备选词汇可知，“a symbol of...”是固定搭配，意为“……的象征”，因此用介词of。故填of。 六、完形填空。 Do you know about China’s smallest mountain? It is in Shouguang, Shandong Province. There you will find Jingshan, the 1 mountain in China, and probably in the whole world. This mountain is about 1.24 metres long and just about 0.7 metres wide. It is only 0.6 metres 2 . With a small 3 , people can reach the top of the mountain. It sounds interesting, doesn’t it? It may not be the most famous mountain in China, 4 it’s the only mountain in Shouguang. It’s a 5 of the city and one of the most popular places of interest. How deep is Jingshan embedded (被嵌入) in the ground? We’ll probably never know as the government now 6 anyone from digging around it. In fact, in the 1950s, some people tried to dig around it to prove (证明) that it wasn’t a mountain, but a simple 7 . They dug for a long time, but they didn’t reach the bottom. And then people saw it 8 the smallest mountain in China. As soon as photos of Jingshan 9 on the Internet, all kinds of opinions appeared online. Some said that they would like to visit the cute mountain by themselves. Some even joked that during the summer, the high crops (庄稼) would make it impossible to 10 the mountain. 1．A．highest B．largest C．longest D．smallest 2．A．wide B．long C．short D．high 3．A．step B．journey C．break D．risk 4．A．so B．or C．but D．because 5．A．guest B．symbol C．member D．hobby 6．A．learns B．protects C．stops D．knows 7．A．plant B．road C．chore D．rock 8．A．with B．for C．as D．against 9．A．kept safe B．went popular C．became important D．got modern 10．A．push B．find C．dig D．repair 【答案】1．D 2．D 3．A 4．C 5．B 6．C 7．D 8．C 9．B 10．B 【导语】本文是一篇说明文，主要介绍了中国最小的山——静山。 1．句意：在那里你会发现静山，中国最小的山，可能也是全世界最小的山。 highest最高的；largest最大的；longest最长的；smallest最小的。根据上文“Do you know about China’s smallest mountain?”可知，此处指“中国最小的山”。故选D。 2．句意：它距离地面只有0.6米高。 wide宽的；long长的；short短的；high高的。根据上文“This mountain is about 1.24 metres long and just about 0.7 metres wide.”可知，此处是介绍这座山的高度。故选D。 3．句意：迈开一小步，人们就能到达山顶。 step步；journey旅行；break休息；risk风险。根据“It is only 0.6 metres…With a small…people can reach the top of the mountain.”可知，此处表示“只需迈一小步，人们就能登顶”。故选A。 4．句意：它可能不是中国最著名的山，但它是寿光唯一的山。 so因此；or或者；but但是；because因为。根据“It may not be the most famous mountain in China…it’s the only mountain in Shouguang.”可知，前后句是转折关系，应用but连接。故选C。 5．句意：它是这个城市的象征，也是最受欢迎的旅游景点之一。 guest客人；symbol象征；member成员；hobby爱好。根据“It’s a…of the city”并结合备选项可知，此处表示“它是这个城市的象征”；a symbol of意为“……的象征”。故选B。 6．句意：我们可能永远不会知道，因为政府禁止任何人在它周边挖掘。 learns学习；protects保护；stops停止；knows知道。根据“We’ll probably never know as the government now…anyone from digging around it.”及备选项可知，静山嵌入地面有多深，我们可能永远不会知道，因为政府现在阻止任何人挖掘它；stop sb. from doing sth.意为“阻止某人做某事”。故选C。 7．句意：事实上，在20世纪50年代，一些人试图在它周围挖掘，以证明它不是一座山，而是一块普通的岩石。 plant植物；road马路；chore杂活；rock岩石。根据前文“…Jingshan, the…mountain in China”和“…prove (证明) that it wasn’t a mountain, but a simple…”可知，静山是中国最小的山，山一般由岩石组成，因此此处指“证明它不是一座山，而是一块普通的岩石”。故选D。 8．句意：后来人们把它看作是中国最小的山。 with和；for为了；as作为；against反对。根据“And then people saw it…the smallest mountain in China.”可知，人们把它看作是中国最小的山；see sth. as…“视某物为……”。故选C。 9．句意：静山的照片在网上一走红，各种各样的观点就在网上出现了。 kept safe保持安全；went popular变得流行；became important变得重要；got modern变得现代。根据“…all kinds of opinions appeared online.”可知，此处指“静山的照片在网上流行”。故选B。 10．句意：有人甚至开玩笑说，在夏天，高的庄稼会让人找不到那座山。 push推；find找到；dig挖；repair修理。根据“the high crops (庄稼) would make it impossible to…the mountain.”可知，静山很小，高的庄稼会遮挡住这座山，使人找不到它。故选B。 七、阅读还原。 Nirmal Purja has set several world records after climbing the world’s 14 highest mountains in less than seven months. 1 Though he was born 1,600 meters above sea level, he didn’t climb any serious mountains until he was 29. But Mr Purja was trained to be strong. He used to be a soldier in the British army, where he had special training for fighting in very cold weather. In 2018, he left there to follow his dream of mountain climbing. There are only 14 mountains in the world that are higher than 8,000 meters. 2 The old record for climbing the 14 mountains was seven years, ten months and six days. It was set by ROK climber Kim Chang-ho in 2013. Mr Purja named his challenge “Project Possible”. 3 On October 29, just a little more than six months after he started, Nirmal Purja had finished climbing the 14th mountain. Though Mr Purja completed his challenge unbelievably quickly, it wasn’t easy. For example, during one day of climbing Shishapangma, Mr Purja and his team climbed for 15 hours nonstop. 4 Mr Purja believes his strong physical condition and his training as a soldier helped him. He hopes his efforts will inspire others. “People are only limited (限制) by their imagination,” he says. “If you don’t dream, then you won’t do it.” A．He had completed five more climbs in Pakistan. B．Mr Purja was born in Nepal, in the Himalayas. C．His goal was to climb all of them in less than seven months. D．He began on April 23, by climbing Annapurna in Nepal. E．They had to deal with winds as fast as 75 kilometers per hour. 【答案】1．B 2．C 3．D 4．E 【导语】本文是一篇人物介绍类说明文，围绕尼泊尔登山家尼玛尔·普贾的登山壮举展开，介绍了他的背景、挑战目标、打破纪录的过程，以及他面对的困难和传递的精神。 1．根据“Though he was born 1,600 meters above sea level, he didn’t climb any serious mountains until he was 29.”可知，这里是在介绍他的出生地。选项B“普尔贾先生出生于尼泊尔的喜马拉雅山区。”能承接上文，说明他出生在高海拔地区的背景。故选B。 2．根据“There are only 14 mountains in the world that are higher than 8,000 meters.”以及“The old record for climbing the 14 mountains was seven years, ten months and six days.”可知，这里是在说明他的目标。选项C“他的目标是在不到七个月的时间里攀登完所有这些山峰。”能承接上文，引出他挑战纪录的内容。故选C。 3．根据“Mr Purja named his challenge ‘Project Possible’.”以及“On October 29, just a little more than six months after he started, Nirmal Purja had finished climbing the 14th mountain.”可知，这里是在说明他开始挑战的时间和地点。选项D“他于4月23日从攀登尼泊尔的安纳普尔纳峰开始。”能承接上文，补充他挑战的起始信息。故选D。 4．根据“For example, during one day of climbing Shishapangma, Mr Purja and his team climbed for 15 hours nonstop.”可知，这里是在补充他们遇到的具体困难。选项E“他们不得不应对时速高达75公里的强风。”能承接上文，进一步说明攀登的艰难。故选E。 任务型阅读。 The seasons in Australia are not like ours. When it is winter in China, it is summer there. Australia is a southern country—it is in the south of the world. June, July and August are the winter months; September, October and November are spring. The summer is in December, January and February, and March, April and May are the autumn months. The north of the country is hotter than the south. A very large part of this country has no rain at all. The east coast (海岸) has rain all year, and there are no dry months there. The southeast winds blow here all the year. They bring rain from the sea. There is not much rain on the west side. The southeastern part of Australia has summer rain from the southeast winds. They only blow here in summer. The southwestern part of Australia has winter rain. The west winds blow over the southwest in winter only. In summer, the southwest of the country has no rain. In the north of Australia, there is no rain in winter. The rain comes in summer. The northwest winds bring it. 1．Where is Australia? ____________________________________________________________________________________________ 2．When are winter months in Australia? ____________________________________________________________________________________________ 3．Which part of the country is hotter, the north part or the south part? ____________________________________________________________________________________________ 4．Which part of Australia has winter rain? ____________________________________________________________________________________________ 5．将短文中画线部分翻译成中文。 ____________________________________________________________________________________________ 【答案】1．It’s in the south of the world. 2．June, July and August. 3．The north part. 4．The southwestern part of Australia has winter rain. 5．澳大利亚的季节不像我们的。 【导语】本文是一篇说明文，介绍了澳大利亚的季节特点与不同区域的降水情况，说明了其因位于南半球而与北半球季节相反的特征，以及不同方位的气候差异。 1．根据“Australia is a southern country—it is in the south of the world.”可知澳大利亚的位置。故填It’s in the south of the world. 2．根据“June, July and August are the winter months”可知澳大利亚的冬季月份。故填June, July and August. 3．根据“The north of the country is hotter than the south.”可知北部比南部热。故填The north part. 4．根据“The southwestern part of Australia has winter rain.”可知澳大利亚西南部有冬雨。故填The southwestern part of Australia has winter rain. 5．分析句子可知，时态为一般现在时，用于描述客观事实。“The seasons”意为“季节”，是句子的主语，“the”表特指；“in Australia”是介词短语，作后置定语，修饰“the seasons”，表示“在澳大利亚的”；“are not like”是谓语部分，“like”此处为介词，意为“像”；“ours”是名词性物主代词，指代“our seasons”，避免重复，作介词“like”的宾语。故填：澳大利亚的季节不像我们的。 ( 1 / 7 ) 学科网（北京）股份有限公司 $ Unit 4 The Wonders of Nature 课时3 Section A Grammar Focus 分层作业 核心知识速记 03拓展培优 01基础达标 04思维进阶 02能力提升 ( 词汇 cubic /ˈkjuːbɪk/ adj. 立方的 cubic meter 立方 米 mile /maɪl/ n. 英里 pool /puːl/ n. 池塘；水坑 句型 1. - What is the biggest desert in the world? - It is the Sahara Desert. 2. - How big is it? - It is about 9,000,000 square kilometres in size. 3. - Where is the deepest point in the ocean? - It is in the Mariana Trench. 4. - How deep is it? - It is about 11,000 metres deep. ) 一、单词默写。 1. _______ /ˈkjuːbɪk/ adj. 立方的 2. ________ /maɪl/ n. 英里 3. __________ /puːl/ n. 池塘；水坑 二、词组默写。 1. 最伟大的奇观之一_______________________ 2. 深海动物 _______________________ 3. 最大的沙漠 _______________________ 4. cubic meter _______________________ 5. square kilometres _______________________ 三、根据要求完成句子 1. 如果开车的人越少，空气污染就会越少。 If ________ people drive cars, there will be ________ air pollution. 2. 月光湖面积2.3平方千米。 Moon Lake is 2.3 ________ ________ in size. 3. 爱丽丝和杰克一样认真地写作业。 Alice does her homework ________ ________ ________ Jack. 4. 中欧班列是从中国开往欧洲距离最远的货运列车。 CR Express is the freight train that ________ ________ ________ from China to Europe. 5. 罗宾认为英语比数学容易得多。 Robin thinks English is ________ ________ ________ maths. 四 、填写出正确的数字。 1. The Great Wall of China is about _________ (twenty-one thousand, one hundred and ninety-six) kilometres long. 2. (eight thousand, four hundred and fifty) _________ people can fit into this stadium at full capacity. 3. The Yangtze River is approximately _________ (six thousand, three hundred) kilometres in length. 4. (thirty-six thousand, two hundred and seventy-nine) _________ students are currently enrolled at this university. 5. The speed of sound in dry air is about _________ (one thousand, two hundred and thirty-five) kilometres per hour. 五、阅读短文，从方框中选择适当的词并用其正确的形式填空（每词限用一次）。 two  similar  it  play  short  when  of  provide  easy  area Today let me introduce one of the Chinese wonders—the Yellow River. The Yellow River is the 1 longest river in China. The “yellow” in its name is from the mud and sand. About ninety percent of the mud and sand in the Yellow River comes from the Loess Plateau(黄土高原). The Loess Plateau is loose(松软的) and washed away 2 . As a result, a lot of mud and sand go into the Yellow River 3 the rainy season comes. The Yellow River starts from the Qinghai-Tibet Plateau. The river’s shape is 4 to “几”. It runs from the west to the east through nine provinces and finally runs into the Bohai Sea. It covers a(n) 5 of about 752,443 square kilometres. The Yellow River is about 5,464 kilometres long. In fact, it is a little 6 than the Yangtze River. In Chinese history, the Yellow River is the most important birthplace. Ancient Chinese people lived around the river and created a rich culture. Today, the area around the Yellow River is very important for farming. The Yellow River also 7 water for factories and people’s lives. What’s more, the Yellow River 8 an important role in Chinese culture. People created a lot of poems, paintings, and songs about 9 . The Yellow River is a symbol 10 China. We call it the “Mother River”. 六、完形填空。 Do you know about China’s smallest mountain? It is in Shouguang, Shandong Province. There you will find Jingshan, the 1 mountain in China, and probably in the whole world. This mountain is about 1.24 metres long and just about 0.7 metres wide. It is only 0.6 metres 2 . With a small 3 , people can reach the top of the mountain. It sounds interesting, doesn’t it? It may not be the most famous mountain in China, 4 it’s the only mountain in Shouguang. It’s a 5 of the city and one of the most popular places of interest. How deep is Jingshan embedded (被嵌入) in the ground? We’ll probably never know as the government now 6 anyone from digging around it. In fact, in the 1950s, some people tried to dig around it to prove (证明) that it wasn’t a mountain, but a simple 7 . They dug for a long time, but they didn’t reach the bottom. And then people saw it 8 the smallest mountain in China. As soon as photos of Jingshan 9 on the Internet, all kinds of opinions appeared online. Some said that they would like to visit the cute mountain by themselves. Some even joked that during the summer, the high crops (庄稼) would make it impossible to 10 the mountain. 1．A．highest B．largest C．longest D．smallest 2．A．wide B．long C．short D．high 3．A．step B．journey C．break D．risk 4．A．so B．or C．but D．because 5．A．guest B．symbol C．member D．hobby 6．A．learns B．protects C．stops D．knows 7．A．plant B．road C．chore D．rock 8．A．with B．for C．as D．against 9．A．kept safe B．went popular C．became important D．got modern 10．A．push B．find C．dig D．repair 七、阅读还原。 Nirmal Purja has set several world records after climbing the world’s 14 highest mountains in less than seven months. 1 Though he was born 1,600 meters above sea level, he didn’t climb any serious mountains until he was 29. But Mr Purja was trained to be strong. He used to be a soldier in the British army, where he had special training for fighting in very cold weather. In 2018, he left there to follow his dream of mountain climbing. There are only 14 mountains in the world that are higher than 8,000 meters. 2 The old record for climbing the 14 mountains was seven years, ten months and six days. It was set by ROK climber Kim Chang-ho in 2013. Mr Purja named his challenge “Project Possible”. 3 On October 29, just a little more than six months after he started, Nirmal Purja had finished climbing the 14th mountain. Though Mr Purja completed his challenge unbelievably quickly, it wasn’t easy. For example, during one day of climbing Shishapangma, Mr Purja and his team climbed for 15 hours nonstop. 4 Mr Purja believes his strong physical condition and his training as a soldier helped him. He hopes his efforts will inspire others. “People are only limited (限制) by their imagination,” he says. “If you don’t dream, then you won’t do it.” A．He had completed five more climbs in Pakistan. B．Mr Purja was born in Nepal, in the Himalayas. C．His goal was to climb all of them in less than seven months. D．He began on April 23, by climbing Annapurna in Nepal. E．They had to deal with winds as fast as 75 kilometers per hour. 任务型阅读。 The seasons in Australia are not like ours. When it is winter in China, it is summer there. Australia is a southern country—it is in the south of the world. June, July and August are the winter months; September, October and November are spring. The summer is in December, January and February, and March, April and May are the autumn months. The north of the country is hotter than the south. A very large part of this country has no rain at all. The east coast (海岸) has rain all year, and there are no dry months there. The southeast winds blow here all the year. They bring rain from the sea. There is not much rain on the west side. The southeastern part of Australia has summer rain from the southeast winds. They only blow here in summer. The southwestern part of Australia has winter rain. The west winds blow over the southwest in winter only. In summer, the southwest of the country has no rain. In the north of Australia, there is no rain in winter. The rain comes in summer. The northwest winds bring it. 1．Where is Australia? ____________________________________________________________________________________________ 2．When are winter months in Australia? ____________________________________________________________________________________________ 3．Which part of the country is hotter, the north part or the south part? ____________________________________________________________________________________________ 4．Which part of Australia has winter rain? ____________________________________________________________________________________________ 5．将短文中画线部分翻译成中文。 ____________________________________________________________________________________________ ( 1 / 7 ) 学科网（北京）股份有限公司 $