Unit 2 Body Language 语法grammar 动名词-2025-2026学年八年级英语下册单元语法词汇题型知识点练习(沪教版2024)

Unit 2 Body Language 重点语法 动名词 （时间：50分钟，满分：100分） 构成 动词原形+-ing 常跟动名 词的词 完成练习喜欢忙， 花费困难不介意， 玩的开心仍期待。 完成(finish)练习(practice)之后都喜欢(enjoy)去忙 (be busy) 喜欢 的事情 ，虽然喜欢 的事要花费(spend) 时间 ，而且有困难(have difficulty / trouble / problems ) ，但是我 不介意 (mind) ，因为我每次都玩得很开心(have fun) ， 所以仍然很期待(look forward to) 。 此 to 非彼 to look forward to doing be used to doing prefer doing to doing I am looking forward to hearing from you. She is used to getting up early. I prefer swimming to dancing. 特殊情况 prefer to do sth. rather than do sth. would rather do sth. than do sth. I prefer to learn English rather than play tennis. need/require/want+doing= need/require/want to be done The car needs cleaning. = The car needs to be cleaned. 动词后接 不定式和 动名词的 区别 stop to do 停下来去做某事 stop doing 停止做某事 Why not stop to have a rest? Stop talking,please. remember to do 记得要去做某事 remember doing 记得做过某事 Please remember to turn off the light. I remember posting your letter. forget to do 忘记要去做某事 forget doing 忘记做过某事 I forgot to bring my homework. I forgot bringing my homework. try to do 努力去做某事 try doing 尝试做某事 Please try to do better next time. He tries speaking English to us. go on to do 继续做另一件事 go on doing 继续做同一件事 Go on to do the other exercises after finishing this one. Go on doing the exercises after a short rest. regret to do 对要做的事感到遗憾 （未做） regret doing 对做过的事感到后悔 （已做） I regret to do this,but I have no choice. I don’t regret telling her what I thought. mean to do 打算做某事 mean doing 意味着做某事 I meant to go ,but my father would not allow me to. Doing that means wasting time. allow sb. to do 允许某人做某事allow doing 允许做某事 We don’t allow students to go out on weekdays. We don’t allow smoking here. 动名词做 主语 动名词做主语一般看做单数 Eating apples is good for our health. 一、单项选择(本大题共30小题，每小题2分，共60分) 1．My sister has trouble ________ English. A．learn B．learning C．to learn 【答案】B 【详解】句意：我姐姐在学习英语上有困难。 考查固定搭配。根据“has trouble”可知，固定搭配“have trouble (in) doing something”表示“在做某事上有困难”可知，此处应使用动名词形式。故选B。 2．Lisa is a little poor at Chinese. I think she needs ________ it every day. A．practise to speak B．to practise speaking C．to practise to speaking 【答案】B 【详解】句意：Lisa的中文有点差。我认为她需要每天练习说它。 考查动词短语。need to do sth需要做某事，后接动词不定式；practise doing练习做某事。按照语法规则，合理的为“to practise speaking”。故选B。 3．I enjoy ________ books in my free time. It can open up a new world for me. A．read B．reading C．to read 【答案】B 【详解】句意：我喜欢在空闲时间读书，这能为我打开一个全新的世界。 考查非谓语动词。read阅读（动词原形）；reading阅读（动名词/现在分词）；to read阅读（动词不定式）。enjoy doing sth表示“喜欢做某事”，此处应填动名词形式。故选B。 4．—Would you mind ________the window? It's too hot. —Of course not. A．open B．opening C．to open D．opened 【答案】B 【详解】句意：——你介意打开窗户吗？太热了。——当然不介意。 考查非谓语动词。mind“介意”，后面常跟动词-ing形式作宾语，即mind doing sth.表示“介意做某事”，所以此处应用opening。故选B。 5．He kept on ________ every morning, no matter how cold it was. A．to run B．running C．run 【答案】B 【详解】句意：不管天气多冷，他每天早上都坚持跑步。 考查非谓语动词。根据“kept on”可知，此处是keep on doing sth.“坚持做某事”，所以使用动名词形式。故选B。 6．The boys often enjoy ________ football after class every day. A．playing B．play C．plays D．to play 【答案】A 【详解】句意：男孩们常常喜欢每天课后去踢足球。 考查非谓语动词。根据“enjoy”可知，此处考查“enjoy doing sth.”这一固定搭配，意为“喜欢做某事的乐趣”，所以应该用动名词形式playing作宾语。故选A。 7．I look forward to ________ the flag going up at Tian’anmen Square. A．watch B．watched C．watching 【答案】C 【详解】句意：我期待观看国旗在天安门广场升起。 考查介词后接动名词的语法知识。watch观看，动词原形；watched观看，过去式/过去分词；watching观看，现在分词/动名词。look forward to doing sth.意为“期待做某事”，其中to为介词，结合选项，应选watching，动名词作to的宾语。故选C。 8．To keep healthy, we should avoid ________ too much junk food. A．to eat B．eating C．eats D．ate 【答案】B 【详解】句意：为了保持健康，我们应该避免吃太多垃圾食品。 考查非谓语动词的用法。to eat吃，动词不定式；eating吃，动名词/现在分词；eats吃，动词第三人称单数形式；ate吃，动词过去式。根据“we should avoid...too much junk food.”可知，avoid后必须接动名词形式，表示“避免做某事”。故选B。 9．—I think ________ the rules in school is important for all students. —Yes, I can’t agree with you more. A．follow B．following C．followed 【答案】B 【详解】句意：——我认为在学校遵守规则对所有学生来说都很重要。——是的，我完全同意你的看法。 考查动名词作主语。分析句子结构可知，从句中缺少主语，需用动名词形式作主语，follow的动名词形式是following。故选B。 10．He spent half an hour ________ pictures last night. A．draw B．to draw C．drew D．drawing 【答案】D 【详解】句意：他昨晚花了半个小时画画。 考查非谓语动词搭配。根据“He spent half an hour...pictures last night.”可知，spend time doing sth.表示“花费时间做某事”，其中doing为动名词形式，作宾语。故选D。 11．The little boy finished ________ his homework before 7 o’clock and then went out to play with his friends. A．do B．does C．doing D．to do 【答案】C 【详解】句意：这个小男孩在7点前完成了作业，然后出去和朋友玩了。 考查非谓语动词。do动词原形；does第三人称单数；doing动名词或 现在分词；to do动词不定式。finish doing sth.“完成/结束做某事”，此处应该使用动名词形式doing。故选C。 12．We suggested ________ a picnic this weekend. A．to have B．had C．has D．having 【答案】D 【详解】句意：我们建议这周末去野餐。 考查非谓语动词。suggest doing sth.是固定搭配，意为“建议做某事”，因此空格处应填动名词having。故选D。 13．I don’t feel well. I need to avoid ________ now. A．to drive B．driving C．drive 【答案】B 【详解】句意：我感觉不舒服，现在需要避免开车。 考查非谓语动词。to drive动词不定式；driving动名词/现在分词；drive动词原形。根据“avoid”可知，此处用固定搭配“avoid doing sth.”，意为“避免做某事”，符合“避免开车”的语境。故选B。 14．Tina will get good grades as long as she sticks to ________ hard. A．studying B．study C．studied D．studies 【答案】A 【详解】句意：只要蒂娜坚持努力学习，她就会取得好成绩。 考查非谓语动词。studying学习，动名词；study学习，动词原形；studied学习，动词过去式；studies学习，动词三单形式。stick to doing sth“坚持做某事”，其后接名词或动名词形式。故选A。 15．My brother is good at ________ model planes. He made one all by himself last week. A．make B．made C．to make D．making 【答案】D 【详解】句意：我哥哥擅长制作模型飞机。他上周自己一个人做了一个。 考查固定搭配。be good at后接动名词，表示“擅长做某事”。故选D。 16．I think we should pay attention ________ on with people around us. A．to get B．to getting C．in getting D．get 【答案】B 【详解】句意：我认为我们应该注意和周围的人如何相处。 考查非谓语动词。pay attention to意为“注意”，其中to是介词，后面接动词时，动词要用动名词形式。get on with sb.意为“与某人相处”。所以此处应该用getting。故选B。 17．My father likes news on TV after dinner. A．watching B．seeing C．looking D．reading 【答案】A 【详解】句意：我爸爸喜欢晚饭后在电视上看新闻。 考查动词辨析。watching观看；seeing看见；looking看（强调动作）；reading 阅读。根据“news on TV”可知，此处表示观看电视节目。故选A。 18．Jimmy keeps ________ questions because he is curious about everything. A．to ask B．asks C．asked D．asking 【答案】D 【详解】句意：吉米一直问问题，因为他对每件事都很好奇。 考查非谓语动词。根据“Jimmy keeps...questions”可知，此处是keep doing sth.“一直做某事”，动名词作宾语。故选D。 19．They worked hard and succeeded in ________ the project on time. A．finish B．finishing C．finished 【答案】B 【详解】句意：他们努力工作，并成功按时完成了项目。 考查固定搭配的用法。“succeed in doing sth.”是固定搭配，意为“成功做某事”，此处需用动名词形式“finishing”。故填B。 20．Grandma is too busy ________ dinner in the kitchen, so she can’t answer the phone now. A．cooking B．to cook C．cook 【答案】A 【详解】句意：奶奶在厨房里忙着做饭，所以她现在不能接电话。 考查非谓语动词，根据“Grandma is too busy...dinner in the kitchen, so she can’t answer the phone now.”可知，此处表示奶奶忙着做饭，所以她现在不能接电话。be busy doing sth意为“忙着做某事”。故选A。 21．—Is it great fun ________ around the world with our friends? —Yes. We can have fun ________ the beautiful sights on the way. A．travelling; to enjoy B．to travel; to enjoy C．travelling; enjoying D．to travel; enjoying 【答案】D 【详解】句意：——和朋友一起环游世界很有趣吗？——是的，我们可以在途中享受美丽的风景。 考查非谓语动词。根据“Is it great fun...”可知第一空考查句型“It is fun to do sth.”，表示“做某事很有趣”，因此此处用不定式to travel；根据“We can have fun...”可知第二空用动名词enjoying，构成“have fun doing sth”结构，表示“做某事很开心”。故选D。 22．Easton enjoys ________ problems one after another. A．solve B．to solve C．solving D．solved 【答案】C 【详解】句意：Easton喜欢一个接一个地解决问题。 考查动词enjoy的用法。根据“Easton enjoys…problems one after another.”可知，这里是enjoy doing sth“喜欢做某事”，可知solve的动名词solving作宾语，符合语境。故选C。 23．—He kept ________ for many years and finally his dream came true. —We should learn from his spirit. A．try B．trying C．to try 【答案】B 【详解】句意：——他多年来一直不断尝试，最终他的梦想实现了。——我们应该学习他的精神。 考查非谓语动词。try尝试，动词原形；trying动名词或现在分词；to try不定式。“keep doing sth.”是固定用法，表示“持续做某事，一直做某事”，此处用“try”的动名词形式“trying”，表示他多年持续不断尝试。故选B。 24．—How about ________ games after school with us? —Sorry, I can’t. I’d like ________ my homework first. A．play; do B．playing; to do C．playing; doing 【答案】B 【详解】句意：——放学后和我们一起玩游戏怎么样？——对不起，我不能。我想先做作业。 考查非谓语动词。How about后接动名词playing，表示建议；would like后接动词不定式to do，表示意愿。故选B。 25．He doesn’t feel like ________ to the party because he is tired. A．go B．to go C．going D．goes 【答案】C 【详解】句意：他因为很累，不想去参加派对。 考查非谓语动词。go去，动词原形；to go动词不定式；going动名词或现在分词；goes第三人称单数形式。“feel like doing sth.”是固定用法，意思是“想要做某事”，所以此处需要用“go”的动名词形式“going”。故选C。 26．My brother is good at ________ basketball. He wants to be a player. A．play B．plays C．playing D．to play 【答案】C 【详解】句意：我哥哥擅长打篮球。他想成为一名球员。 考查非谓语动词。由“is good at”可知，at是介词，be good at doing sth.表示“擅长做某事”，空处需用动名词形式。故选C。 27．Chen Jie is so shy that she is afraid of ________ alone. A．perform B．performing C．to perform 【答案】B 【详解】句意：陈洁太害羞了，以至于她害怕独自表演。 考查非谓语动词。perform表演，动词原形；performing表演，动名词形式或现在分词；to perform表演，动词不定式。空前“be afraid of”是固定搭配，“of”是介词，介词后接动词时，需用动词的动名词形式。故选B。 28．They succeeded in ________ to the top of Qomolangma. A．to get B．get C．getting 【答案】C 【详解】句意：他们成功登上了珠穆朗玛峰的峰顶。 考查非谓语动词。succeed in doing sth“成功做某事”，此空应填动名词，故选C。 29．You’d better stop ________, because it’s harmful to your health. A．to smoke B．smoking C．smoke D．with smoke 【答案】B 【详解】句意：你最好停止吸烟，因为它对你的健康有害。 考查非谓语动词。stop doing sth.停止做某事（停止正在做的事情）；stop to do sth.停下来去做某事。根据“because it’s harmful to your health”可知劝对方戒烟，用stop smoking。故选B。 30．Please don’t give up ________ whenever you have any difficulties. A．study B．studies C．studied D．studying 【答案】D 【详解】句意：不管你遇到任何困难都不要放弃学习。 考查动名词的用法。give up doing sth.表示“放弃做某事”。故选D。 二、单词拼写(本大题共20小题，每小题2分，共40分) 31．You are good at running! How did you miss (win) the first prize in the running race? 【答案】winning 【详解】句意：你很擅长跑步！你怎么会在跑步比赛中错失获得一等奖的机会呢？miss作动词表示“错过”时，固定用法是“miss doing sth.”，因此此处需用win的动名词形式winning。故填winning。 32．When Bill sang a nice song in class, we all kept on our heads happily. (nod) 【答案】nodding 【详解】句意：当Bill在课堂上唱了一首好听的歌曲时，我们都高兴地不停点头。“keep on doing sth.”意为“持续/反复做某事”，固定搭配。故填nodding。 33．I really feel like (go) for a walk in the nearest park this afternoon. 【答案】going 【详解】句意：今天下午我真的很想在最近的公园里散步。根据“feel like后接动名词”的固定用法可知，“go”的动名词形式是“going”。故填going。 34．I know why you are so good at (write). 【答案】writing 【详解】句意：我知道你为什么这么擅长写作。根据“are so good at”可知，at为介词，后接动名词形式作宾语，write“写”，动词，其动名词形式为writing。be good at doing sth.“擅长做某事”。故填writing。 35．Could you buy some bananas after (take) a walk? 【答案】taking 【详解】句意：你能在散步后买些香蕉吗？take“拿，取”，为动词，take a walk“去散步”，after是介词，其后用动名词作宾语。故填taking。 36．Stop (push) and just wait for your turn. 【答案】pushing 【详解】句意：别推了，就等着轮到你吧。根据所给单词push是动词“推”，此处用到stop的固定结构“stop doing sth.”，表示“停止做某事”。此处需要动名词形式pushing。故填pushing。 37． (have) a Labubu of my own was always my dream. 【答案】Having 【详解】句意：拥有一个属于自己的Labubu一直是我的梦想。have“有”，动词。分析句子结构，空格处作主语，需用动名词形式。故填Having。 38． (protect) the environment is our duty. 【答案】Protecting 【详解】句意：保护环境是我们的责任。protect“保护”，此处需要动名词作句子的主语，句首字母大写。故填Protecting。 39．My brother spent a great deal of time (learn) how to edit videos with a new app. 【答案】learning 【详解】句意：我哥哥花了很多时间学习如何用一款新应用编辑视频。根据“spent a great deal of time”可知，spend time doing sth.“花费时间做某事”，因此此处用learn的动名词形式learning。故填learning。 40．My father often tells me not to spend too much time (play) online games. 【答案】playing 【详解】句意：我父亲经常告诉我不要花太多时间玩网络游戏。spend time doing sth.“花时间做某事”，为固定搭配，所以用play的动名词playing。故填playing。 41．You shouldn’t leave without (say) goodbye. 【答案】saying 【详解】句意：你不应该不辞而别。without是介词，其后接动名词，say的动名词形式是saying。故填saying。 42． in each other helps your friendship last long.(believe) 【答案】Believing 【详解】句意：彼此信任有助于你们的友谊长久。helps是谓语动词，此处是作主语，需要用动名词形式，句首字母大写。故填Believing。 43．I’m interested in (read) English stories, such as Hansel and Gretel and Cinderella. 【答案】reading 【详解】句意：我对读英语故事很感兴趣，比如《汉泽尔与格莱特》和《灰姑娘》。根据“I’m interested in...English stories, such as Hansel and Gretel and Cinderella.”可知，这里是be interested in doing sth意为“对做某事感兴趣”，in后需接动词的-ing形式，read的-ing形式是reading，符合语境。故填reading。 44．She enjoys (live) in the countryside because she can stay close to nature. 【答案】living 【详解】句意：她喜欢住在乡下，因为她可以亲近自然。live “居住”，动词。enjoy doing sth. 是固定搭配，意为“喜欢做某事”，因此填动名词。故填living。 45． (predict) the future is difficult, but we can work hard to make it better. 【答案】Predicting 【详解】句意：预测未来是困难的，但我们可以努力让它变得更好。predict“预测”，为动词。当动词用作主语时，需要用动名词形式使其名词化；predict的动名词是predicting，句首首字母大写。故填Predicting。 46．Tom suggests (go) to the park for a picnic this weekend. 【答案】going 【详解】句意：汤姆建议这个周末去公园野餐。suggest“建议”，动词，其固定用法为“suggest doing sth.”，表示“建议做某事”，后接动名词作宾语。“go”的动名词形式是“going”。故填going。 47．The old farmer felt like (get) a big house very much. 【答案】getting 【详解】句意：这位老农非常想拥有一座大房子。get“得到”，feel like doing sth.“想要做某事”。故填getting。 48．We can understand people by (know) their friends. 【答案】knowing 【详解】句意：我们可以通过了解人们的朋友来理解他们。根据“by”可知，介词后应用动名词形式，know的动名词形式为knowing。故填knowing。 49． (learn) English is too difficult for me. 【答案】Learning 【详解】句意：学英语对我来说太难了。空处位于句首，作主语，应用其动名词形式且首字母大写。故填Learning。 50． (hunt) wild animals like tigers and elephants is against the law. 【答案】Hunting 【详解】句意：捕猎像老虎和大象这样的野生动物是违法的。hunt意为“打猎；捕猎”，作主语时，需用其动名词形式hunting，且首字母需要大写。故填Hunting。 答案第1页，共2页 答案第1页，共2页 学科网（北京）股份有限公司 $ Unit 2 Body Language 重点语法 动名词 （时间：50分钟，满分：100分） 构成 动词原形+-ing 常跟动名 词的词 完成练习喜欢忙， 花费困难不介意， 玩的开心仍期待。 完成(finish)练习(practice)之后都喜欢(enjoy)去忙 (be busy) 喜欢 的事情 ，虽然喜欢 的事要花费(spend) 时间 ，而且有困难(have difficulty / trouble / problems ) ，但是我 不介意 (mind) ，因为我每次都玩得很开心(have fun) ， 所以仍然很期待(look forward to) 。 此 to 非彼 to look forward to doing be used to doing prefer doing to doing I am looking forward to hearing from you. She is used to getting up early. I prefer swimming to dancing. 特殊情况 prefer to do sth. rather than do sth. would rather do sth. than do sth. I prefer to learn English rather than play tennis. need/require/want+doing= need/require/want to be done The car needs cleaning. = The car needs to be cleaned. 动词后接 不定式和 动名词的 区别 stop to do 停下来去做某事 stop doing 停止做某事 Why not stop to have a rest? Stop talking,please. remember to do 记得要去做某事 remember doing 记得做过某事 Please remember to turn off the light. I remember posting your letter. forget to do 忘记要去做某事 forget doing 忘记做过某事 I forgot to bring my homework. I forgot bringing my homework. try to do 努力去做某事 try doing 尝试做某事 Please try to do better next time. He tries speaking English to us. go on to do 继续做另一件事 go on doing 继续做同一件事 Go on to do the other exercises after finishing this one. Go on doing the exercises after a short rest. regret to do 对要做的事感到遗憾 （未做） regret doing 对做过的事感到后悔 （已做） I regret to do this,but I have no choice. I don’t regret telling her what I thought. mean to do 打算做某事 mean doing 意味着做某事 I meant to go ,but my father would not allow me to. Doing that means wasting time. allow sb. to do 允许某人做某事allow doing 允许做某事 We don’t allow students to go out on weekdays. We don’t allow smoking here. 动名词做 主语 动名词做主语一般看做单数 Eating apples is good for our health. 一、单项选择(本大题共30小题，每小题2分，共60分) 1．My sister has trouble ________ English. A．learn B．learning C．to learn 2．Lisa is a little poor at Chinese. I think she needs ________ it every day. A．practise to speak B．to practise speaking C．to practise to speaking 3．I enjoy ________ books in my free time. It can open up a new world for me. A．read B．reading C．to read 4．—Would you mind ________the window? It's too hot. —Of course not. A．open B．opening C．to open D．opened 5．He kept on ________ every morning, no matter how cold it was. A．to run B．running C．run 6．The boys often enjoy ________ football after class every day. A．playing B．play C．plays D．to play 7．I look forward to ________ the flag going up at Tian’anmen Square. A．watch B．watched C．watching 8．To keep healthy, we should avoid ________ too much junk food. A．to eat B．eating C．eats D．ate 9．—I think ________ the rules in school is important for all students. —Yes, I can’t agree with you more. A．follow B．following C．followed 10．He spent half an hour ________ pictures last night. A．draw B．to draw C．drew D．drawing 11．The little boy finished ________ his homework before 7 o’clock and then went out to play with his friends. A．do B．does C．doing D．to do 12．We suggested ________ a picnic this weekend. A．to have B．had C．has D．having 13．I don’t feel well. I need to avoid ________ now. A．to drive B．driving C．drive 14．Tina will get good grades as long as she sticks to ________ hard. A．studying B．study C．studied D．studies 15．My brother is good at ________ model planes. He made one all by himself last week. A．make B．made C．to make D．making 16．I think we should pay attention ________ on with people around us. A．to get B．to getting C．in getting D．get 17．My father likes news on TV after dinner. A．watching B．seeing C．looking D．reading 18．Jimmy keeps ________ questions because he is curious about everything. A．to ask B．asks C．asked D．asking 19．They worked hard and succeeded in ________ the project on time. A．finish B．finishing C．finished 20．Grandma is too busy ________ dinner in the kitchen, so she can’t answer the phone now. A．cooking B．to cook C．cook 21．—Is it great fun ________ around the world with our friends? —Yes. We can have fun ________ the beautiful sights on the way. A．travelling; to enjoy B．to travel; to enjoy C．travelling; enjoying D．to travel; enjoying 22．Easton enjoys ________ problems one after another. A．solve B．to solve C．solving D．solved 23．—He kept ________ for many years and finally his dream came true. —We should learn from his spirit. A．try B．trying C．to try 24．—How about ________ games after school with us? —Sorry, I can’t. I’d like ________ my homework first. A．play; do B．playing; to do C．playing; doing 25．He doesn’t feel like ________ to the party because he is tired. A．go B．to go C．going D．goes 26．My brother is good at ________ basketball. He wants to be a player. A．play B．plays C．playing D．to play 27．Chen Jie is so shy that she is afraid of ________ alone. A．perform B．performing C．to perform 28．They succeeded in ________ to the top of Qomolangma. A．to get B．get C．getting 29．You’d better stop ________, because it’s harmful to your health. A．to smoke B．smoking C．smoke D．with smoke 30．Please don’t give up ________ whenever you have any difficulties. A．study B．studies C．studied D．studying 二、单词拼写(本大题共20小题，每小题2分，共40分) 31．You are good at running! How did you miss (win) the first prize in the running race? 32．When Bill sang a nice song in class, we all kept on our heads happily. (nod) 33．I really feel like (go) for a walk in the nearest park this afternoon. 34．I know why you are so good at (write). 35．Could you buy some bananas after (take) a walk? 36．Stop (push) and just wait for your turn. 37． (have) a Labubu of my own was always my dream. 38． (protect) the environment is our duty. 39．My brother spent a great deal of time (learn) how to edit videos with a new app. 40．My father often tells me not to spend too much time (play) online games. 41．You shouldn’t leave without (say) goodbye. 42． in each other helps your friendship last long.(believe) 43．I’m interested in (read) English stories, such as Hansel and Gretel and Cinderella. 44．She enjoys (live) in the countryside because she can stay close to nature. 45． (predict) the future is difficult, but we can work hard to make it better. 46．Tom suggests (go) to the park for a picnic this weekend. 47．The old farmer felt like (get) a big house very much. 48．We can understand people by (know) their friends. 49． (learn) English is too difficult for me. 50． (hunt) wild animals like tigers and elephants is against the law. 答案第1页，共2页 答案第1页，共2页 学科网（北京）股份有限公司 $