Unit 1 Helping those in need 单元语法（动词不定式）-2025-2026学年八年级英语下册单元语法精讲精练（沪教版）

Unit 1 Helping those in need 重点语法 动词不定式 （时间：50分钟，满分：100分） 构成 肯定：(to)+动词原形，to 为不定式符号，本身无词义 否定：not (to)+动词原形 形式主语 It’s +adj.+(for/of) sb. to do sth. It’s useful to learn English. It’s kind of you to help me. 宾 语 及物动词后 decide/expect/want/agree... I have decided to study Japanese. 形式宾语 find/think it +adj.+to do sth. He finds it easy to speak English every day. 省 to Why not do...? Why don’t you do...? had better do... would rather do... please do... Why not go to the park? Why don’t you go to the park? You’d better stay here. I’d rather stay at home. Please sit down. 宾 补 宾补 tell/ask/allow...sb to do He asks me to carry the box. 省 to feel//hear/listen to/let/make/have/ look at/see/watch/notice Let’s go. He makes me clean the room. 定语（后置） 起形容词的作用 He was the first to come to the room. 修饰 something/anything... Have you got something to drink? 状语 放在不及物动词后表目的 放在某些形容词后 He went to America to learn English. I’m glad to see you again. 疑问词+不定式 who/what/which/when...+to do Can you tell me how to get there? 不定式的否定 not/never+不定式 The teacher asks us not to swim in the river. 固定句式 too...to... He is too young to dress himself. enough to... He is old enough to go to school. It’s one’s turn to do sth. It’s my turn to clean the classroom. It takes sb. st. to do sth. It takes me two hours to finish the work. 一、单项选择(本大题共30小题，每小题2分，共60分) 1．—Tina, what did your roommate say just now? —She told me ________ too much noise. A．to make B．not make C．not to make 2．Safety is important to all of us. We should learn ________ ourselves in daily life. A．where to hold B．what to visit C．how to protect D．why to help 3．My parents asked me ________ too much time playing video games. A．not spend B．not to spend C．don’t spend D．to not spend 4．— You looked so sleepy this morning, Li Hong! — Well, I finally managed ________ the habit of staying up late. A．to break B．break C．breaking 5．We hope ________ better ways to reduce the harm of natural disasters. A．find B．to find C．finds D．finding 6．My dream is ________ different amazing places around the world. A．explore B．exploring C．to explore D．explored 7．The doctor ________ me to take more exercise every week. A．suggested B．made C．advised D．forgave 8．The smoke (烟) made him ________ badly, so he left the room quickly. A．smile B．cry C．burn D．cough 9．Our teacher expects us ________ good grades in the final exam. A．to get B．getting C．get D．gets 10．The teacher encouraged the students ________ their own opinions during the discussion. A．share B．shared C．to share D．sharing 11．The teacher asked the students ________ a presentation on topics they like. A．make B．making C．to make D．makes 12．Jane, please remind me ________ the windows after school. A．closing B．to close C．close 13．The park sign warned visitors ________ the wild ducks, yet people kept throwing bread into the lake. A．not to feed B．don’t feed C．not feed 14．Sun Yingsha trains hard every day ________ her table tennis skills. A．improve B．improved C．improving D．to improve 15．The museum opens its doors early ________ visitors enough time to explore. A．give B．to give C．giving 16．How nice you are! You always do everything you can _________ me. A．help B．to help C．helping D．helps 17．I’m very happy _______________ you in the park. A．to see B．seeing C．sees D．see 18．The box is ________ heavy for me ________ put it on the table. Who can help me? A．so; that B．too; to C．such; that D．enough; to 19．The doctor and nurses are patient enough ________ the patients. A．to look after B．look after C．looking after D．looks after 20．It’s important ________ a weekly schedule to organize your study. A．make B．to make C．making D．made 21．In order ________ the early bus to the city, she was in a hurry. A．to miss B．not to miss C．to missing D．missed 22．Tom came to China ________ Chinese culture. A．learning B．to learn C．learns D．learned 23．To achieve your dream, don’t just dream big, but plan ________ small steps. A．take B．to take C．taking D．takes 24．—Mary was heard ________ just now. What happened?    —John was telling a joke. A．cry B．to cry C．laugh D．to laugh 25．Our parents expect you ________ hard and get good grades. A．study B．studying C．to study 26．—Why do schools encourage students to take part in more social activities? —Not surprisingly, the aim is ________ social skills. A．to teach B．to develop C．to know 27．He refused ________ to his parents about his problem, which made them worried. A．talk B．talking C．to talk D．talked 28．My feet hurt, so my mother told me ________ today. A．run B．to run C．not run D．not to run 29．She decided _______ for a volunteer after-school reading program. A．try again B．trying on C．to try out 30．He stopped ________a rest because he felt tired. A．have B．having C．to have D．had 二、单词拼写(本大题共20小题，每小题2分，共40分) 31．The government warns people (prepare) for possible floods during the rainy season. 32．We need (donate) some supplies to people affected by the drought. 33．He is patient for his turn. (wait) 34．He promised (tell) me an interesting story about the Ganjiang River. 35．My mother asked me (finish) my homework before dinner. 36．My mom often tells me (wash) hands before meals to keep healthy. 37．The teacher asked us (make) notes when we read about natural wonders. 38．The teacher advised us (choose) a local natural wonder as the topic of our project. 39．Some teenagers prefer (go) out for a run after school. 40．Suzy would like (send) an email to her friend in the USA． 41．We should try our best (protect) the animals in danger. 42．Don’t forget (follow) the class’s rules at the school. 43．She doesn’t know how (solve) this problem. 44．I don’t know what (do) next. Could you tell me, please? 45．The government made new rules (stop) people from driving after drinking. 46．She asked me (help) her with English. 47．My parents allow me (watch) TV on weekends. 48．Don’t fail (call) me when you arrive at the airport. 49．When I was young, I often watched Grandma (cook) but I never cooked anything myself. 50．We should work hard (ride) the waves of our dreams. 试卷第1页，共3页 试卷第1页，共3页 学科网（北京）股份有限公司 $ Unit 1 Helping those in need 重点语法 动词不定式 （时间：50分钟，满分：100分） 构成 肯定：(to)+动词原形，to 为不定式符号，本身无词义 否定：not (to)+动词原形 形式主语 It’s +adj.+(for/of) sb. to do sth. It’s useful to learn English. It’s kind of you to help me. 宾 语 及物动词后 decide/expect/want/agree... I have decided to study Japanese. 形式宾语 find/think it +adj.+to do sth. He finds it easy to speak English every day. 省 to Why not do...? Why don’t you do...? had better do... would rather do... please do... Why not go to the park? Why don’t you go to the park? You’d better stay here. I’d rather stay at home. Please sit down. 宾 补 宾补 tell/ask/allow...sb to do He asks me to carry the box. 省 to feel//hear/listen to/let/make/have/ look at/see/watch/notice Let’s go. He makes me clean the room. 定语（后置） 起形容词的作用 He was the first to come to the room. 修饰 something/anything... Have you got something to drink? 状语 放在不及物动词后表目的 放在某些形容词后 He went to America to learn English. I’m glad to see you again. 疑问词+不定式 who/what/which/when...+to do Can you tell me how to get there? 不定式的否定 not/never+不定式 The teacher asks us not to swim in the river. 固定句式 too...to... He is too young to dress himself. enough to... He is old enough to go to school. It’s one’s turn to do sth. It’s my turn to clean the classroom. It takes sb. st. to do sth. It takes me two hours to finish the work. 一、单项选择(本大题共30小题，每小题2分，共60分) 1．—Tina, what did your roommate say just now? —She told me ________ too much noise. A．to make B．not make C．not to make 【答案】C 【详解】句意：——蒂娜，你室友刚才说什么了？——她告诉我不要制造太多噪音。 考查非谓语动词。根据“what did your roommate say just now”可知，蒂娜的室友告诉蒂娜不要制造太多噪音，tell sb. not to do sth.表示“告诉某人不要做某事”，因此此处应用not to make。故选C。 2．Safety is important to all of us. We should learn ________ ourselves in daily life. A．where to hold B．what to visit C．how to protect D．why to help 【答案】C 【详解】句意：安全对我们所有人都很重要。在日常生活中，我们应该学会如何保护自己。 考查“疑问词+不定式”结构。where to hold在哪里举行；what to visit参观什么；how to protect如何保护；why to help为什么帮助。根据前文“Safety is important”及“…ourselves”可知，此处强调“学会保护自己”，应选用表示方式的“how to protect”。故选C。 3．My parents asked me ________ too much time playing video games. A．not spend B．not to spend C．don’t spend D．to not spend 【答案】B 【详解】句意：我的父母要求我不要花太多时间玩电子游戏。 考查动词不定式。ask sb. to do sth. 意为“要求某人做某事”，其否定形式为 ask sb. not to do sth.，因此“不要花时间”应表达为 not to spend。故选B。 4．— You looked so sleepy this morning, Li Hong! — Well, I finally managed ________ the habit of staying up late. A．to break B．break C．breaking 【答案】A 【详解】句意：——李红，你今天早上看起来很困！——嗯，我终于设法改掉了熬夜的习惯。 考查非谓语动词。to break改掉，动词不定式；break改掉，动词原形；breaking改掉，动名词。manage to do sth.“设法做某事”，此处用动词不定式作宾语。故选A。 5．We hope ________ better ways to reduce the harm of natural disasters. A．find B．to find C．finds D．finding 【答案】B 【详解】句意：我们希望找到更好的方法来减少自然灾害的危害。 考查非谓语动词。hope后接动词时，常用结构为“hope to do sth.”，表示“希望做某事”。故选B。 6．My dream is ________ different amazing places around the world. A．explore B．exploring C．to explore D．explored 【答案】C 【详解】句意：我的梦想是探索世界上不同的奇妙地方。 考查非谓语动词。句子主语是My dream，be动词is后接表语，常用动词不定式（to do）表示具体的梦想内容。因此用to explore。故选C。 7．The doctor ________ me to take more exercise every week. A．suggested B．made C．advised D．forgave 【答案】C 【详解】句意：医生建议我每周多锻炼。 考查动词辨析。suggested建议；made使，让；advised建议；forgave原谅。根据“The doctor ... me to take more exercise every week.”可知，医生是“建议”我多锻炼，suggest后接doing或that从句，advise sb. to do表示“建议某人做某事”符合语境。故选C。 8．The smoke (烟) made him ________ badly, so he left the room quickly. A．smile B．cry C．burn D．cough 【答案】D 【详解】句意：烟让他咳嗽得很厉害，所以他迅速离开了房间。 考查动词辨析。smile微笑；cry哭泣；burn燃烧；cough咳嗽。根据前文“The smoke (烟)”可知，烟会使人咳嗽，且后文“so he left the room quickly”进一步说明因不适而离开。故选D。 9．Our teacher expects us ________ good grades in the final exam. A．to get B．getting C．get D．gets 【答案】A 【详解】句意：我们的老师期望我们在期末考试中取得好成绩。 考查非谓语动词。expect sb. to do sth.“期望某人做某事”，后接动词不定式作宾语补足语。故选A。 10．The teacher encouraged the students ________ their own opinions during the discussion. A．share B．shared C．to share D．sharing 【答案】C 【详解】句意：老师鼓励学生们在讨论中分享他们自己的观点。 考查非谓语动词。encourage sb to do sth“鼓励某人做某事”，空处用不定式作宾语补足语。故选C。 11．The teacher asked the students ________ a presentation on topics they like. A．make B．making C．to make D．makes 【答案】C 【详解】句意：老师让学生们就他们喜欢的主题做一个展示。   考查动词不定式用法。make制作；making动名词/现在分词；to make动词不定式；makes第三人称单数形式。根据题干结构“asked the students...a presentation”可知，此处考查ask sb. to do sth.结构，表示“要求某人做某事”，因此应选用动词不定式形式to make。故选C。 12．Jane, please remind me ________ the windows after school. A．closing B．to close C．close 【答案】B 【详解】句意：简，放学后请提醒我关窗户。 考查动词不定式作宾语补足语。closing关闭，动名词形式；to close去关闭，动词不定式；close关闭，动词原形。根据固定搭配“remind sb. to do sth.”，表示“提醒某人做某事”，这里需要用动词不定式结构。故选B。 13．The park sign warned visitors ________ the wild ducks, yet people kept throwing bread into the lake. A．not to feed B．don’t feed C．not feed 【答案】A 【详解】句意：公园的标志牌警告游客不要喂野鸭，然而人们还是不停地往湖里扔面包。 考查非谓语动词。warn sb. (not) to do sth.是固定搭配，意为“警告某人（不要）做某事”，其中动词不定式作宾语补足语。根据语境可知，这里是说警告游客不要喂野鸭，所以应该用not to feed。故选A。 14．Sun Yingsha trains hard every day ________ her table tennis skills. A．improve B．improved C．improving D．to improve 【答案】D 【详解】句意：孙颖莎每天刻苦训练，以提高她的乒乓球技能。 考查非谓语动词。improve提高，动词原形；improved过去式/过去分词；improving现在分词/动名词；to improve动词不定式。根据“trains hard every day…her table tennis skills”可知，刻苦训练的目的是提高技能，动词不定式“to improve”可表目的。故选D。 15．The museum opens its doors early ________ visitors enough time to explore. A．give B．to give C．giving 【答案】B 【详解】句意：博物馆早早开门，以便给游客足够的时间去探索。 考查非谓语动词。give给，动词原形；to give给，不定式形式；giving给，动名词/现在分词形式。分析句子结构可知，句子已有谓语动词“opens”，所以此处需用非谓语动词形式。根据语境可知，博物馆早早开门的目的是给游客足够的时间去探索，所以此处应用动词不定式“to give”作目的状语。故选B。 16．How nice you are! You always do everything you can _________ me. A．help B．to help C．helping D．helps 【答案】B 【详解】句意：你真好！你总是尽一切所能来帮助我。   考查非谓语动词。根据“You always do everything you can ... me.”可知“帮助我”是目的，用动词不定式to help作目的状语。故选B。 17．I’m very happy _______________ you in the park. A．to see B．seeing C．sees D．see 【答案】A 【详解】句意：我很高兴在公园见到你。 考查非谓语动词。be happy to do sth是固定搭配，表示“很高兴做某事”，此处用动词不定式 to see作原因状语。故选A。 18．The box is ________ heavy for me ________ put it on the table. Who can help me? A．so; that B．too; to C．such; that D．enough; to 【答案】B 【详解】句意：这个箱子对我来说太重了，我搬不上桌子。谁能帮我？ 考查结果状语从句。so...that...如此……以至于……；too...to...太……而不能……；such...that...如此……以至于……；enough...to...足够……去做……。根据“The box is...heavy for me...put it on the table.”可知，箱子太重导致“我”搬不上去，应用too...to...结构。故选B。 19．The doctor and nurses are patient enough ________ the patients. A．to look after B．look after C．looking after D．looks after 【答案】A 【详解】句意：医生和护士足够耐心地照顾病人。 考查非谓语动词。当enough修饰形容词时，常用结构为“形容词+enough+to do”，表示“足够……以至于……”。本句中，patient是形容词，其后应接不定式to look after。故选A。 20．It’s important ________ a weekly schedule to organize your study. A．make B．to make C．making D．made 【答案】B 【详解】句意：制定一个每周计划来组织你的学习是很重要的。 考查为谓语动词用法。make制作，动词原形；to make去制作，动词不定式；making制作，动名词；made制作，过去分词。根据固定句型“It’s important to do sth.”，此处需用不定式形式，强调一般性建议。故选B。 21．In order ________ the early bus to the city, she was in a hurry. A．to miss B．not to miss C．to missing D．missed 【答案】B 【详解】句意：为了不错过早班车去城市，她很匆忙。 考查in order to的用法和否定形式。根据“In order…the early bus to the city, she was in a hurry.”可知，此处应用否定结构“not to do”。“in order to do sth.”表示“为了做某事”，其否定形式为“in order not to do sth.”。故选B。 22．Tom came to China ________ Chinese culture. A．learning B．to learn C．learns D．learned 【答案】B 【详解】句意：汤姆来中国是为了学习中国文化。 考查非谓语动词。根据“Tom came to China...Chinese culture.”可知，汤姆来中国的目的是学习中国文化，动词不定式“to learn”可表目的。故选B。 23．To achieve your dream, don’t just dream big, but plan ________ small steps. A．take B．to take C．taking D．takes 【答案】B 【详解】句意：为了实现你的梦想，不要只是梦想远大，而是要计划采取小步骤。 考查非谓语动词。take采取；动词原形；to take采取，动词不定式；taking采取，动名词/现在分词；takes采取，第三人称单数形式。plan to do sth.是固定搭配，意为“计划去做某事”，空处需用不定式形式作宾语。故选B。 24．—Mary was heard ________ just now. What happened?    —John was telling a joke. A．cry B．to cry C．laugh D．to laugh 【答案】D 【详解】句意：——刚才听到玛丽笑了。发生什么事了？——约翰在讲笑话。 考查动词不定式作主语补足语。cry哭，动词原形；to cry哭，动词不定式；laugh笑，动词原形；to laugh笑，动词不定式。根据“—Mary was heard...just now. What happened? —John was telling a joke.”可知，此处表示玛丽是被听到“笑”了，hear sb. do sth.意为“听到某人做某事”，在被动语态中，原宾语补足语要变成主语补足语，需用动词不定式，此处应该使用动词不定式to laugh，故选D。 25．Our parents expect you ________ hard and get good grades. A．study B．studying C．to study 【答案】C 【详解】句意：我们的父母期望你努力学习并取得好成绩。 考查非谓语动词。expect sb. to do sth. 意为“期望某人做某事”，是固定搭配，C项符合。故选C。 26．—Why do schools encourage students to take part in more social activities? —Not surprisingly, the aim is ________ social skills. A．to teach B．to develop C．to know 【答案】B 【详解】句意：——为什么学校鼓励学生参加更多的社交活动？——毫不奇怪，其目的是培养社交技能。 考查动词不定式。to teach教；to develop发展；to know知道。根据“Why do schools encourage students to take part in more social activities?”可知，学校鼓励学生参加更多社交活动的目的是为了发展（develop）社交技能。故选B。 27．He refused ________ to his parents about his problem, which made them worried. A．talk B．talking C．to talk D．talked 【答案】C 【详解】句意：他拒绝和父母谈论自己的问题，这让他们很担心。 考查动词不定式作宾语。根据“He refused...to his parents about his problem, which made them worried.”可知，refuse是及物动词，常用搭配refuse to do sth.表示“拒绝做某事”，此处to talk作refuse的宾语。故选C。 28．My feet hurt, so my mother told me ________ today. A．run B．to run C．not run D．not to run 【答案】D 【详解】句意：我的脚疼，所以妈妈告诉我今天不要跑步。 考查动词不定式的否定形式。run跑步，动词原形；to run跑步，动词不定式（肯定形式）；not run形式错误；not to run不要跑步，动词不定式（否定形式）。根据“My feet hurt”可知，妈妈的指令应是“不要跑步”。tell sb. not to do sth.是固定搭配，意为“让某人不要做某事”。故选D。 29．She decided _______ for a volunteer after-school reading program. A．try again B．trying on C．to try out 【答案】C 【详解】句意：她决定去参加一个课外阅读志愿活动的选拔。 考查动词短语和不定式的用法。try again再试一次；trying on试穿；to try out参加……选拔。根据“for a volunteer after-school reading program.”可知，此处指决定去参加一个课外阅读志愿活动的选拔，decide to do表示“决定做某事”，因此设空处应该填不定式短语“to try out ”，故选C。 30．He stopped ________a rest because he felt tired. A．have B．having C．to have D．had 【答案】C 【详解】句意：他停下来休息，因为他感到累了。 考查动词stop的用法辨析。have动词原形；having动名词；to have动词不定式；had动词过去分词。stop to do sth. 表示“停下来去做某事”，强调目的；stop doing sth. 表示“停止做某事”，强调终止动作。根据句意，他因疲劳而停下（当前动作）以便休息，应用stop to have a rest。故选C。 二、单词拼写(本大题共20小题，每小题2分，共40分) 31．The government warns people (prepare) for possible floods during the rainy season. 【答案】to prepare 【详解】句意：政府提醒人们在雨季为可能发生的洪水做好准备。prepare“准备”，“warn sb. to do sth.”是固定搭配，意为“提醒/警告某人做某事”，因此填动词不定式。故填to prepare。 32．We need (donate) some supplies to people affected by the drought. 【答案】to donate 【详解】句意：我们需要向受干旱影响的人们捐赠一些物资。need to do sth“需要做某事”，空处用不定式作宾语。故填to donate。 33．He is patient for his turn. (wait) 【答案】to wait 【详解】句意：他很有耐心，愿意等待轮到他。be patient to do sth.为固定搭配，意为“耐心做某事”，所以用不定式to wait。故填to wait。 34．He promised (tell) me an interesting story about the Ganjiang River. 【答案】to tell 【详解】句意：他承诺要给我讲一个关于赣江的有趣故事。根据“promised”可知，此处考查promise的用法，promise to do sth.“承诺做某事”，因此横线处需填动词不定式，tell“告诉”，动词，其不定式形式为to tell。故填to tell。 35．My mother asked me (finish) my homework before dinner. 【答案】to finish 【详解】句意：我妈妈要求我在晚饭前完成作业。finish“完成”，ask sb. to do sth.是固定短语，意为“要求某人做某事”，这里需要用动词不定式作宾语补足语。故填to finish。 36．My mom often tells me (wash) hands before meals to keep healthy. 【答案】to wash 【详解】句意：我妈妈经常告诉我饭前要洗手以保持健康。wash“洗”，tell sb to do sth“告诉某人做某事”，为固定短语，所以此处应用动词不定式形式。故填to wash。 37．The teacher asked us (make) notes when we read about natural wonders. 【答案】to make 【详解】句意：老师要求我们在阅读有关自然奇观的内容时做笔记。make“制作”，为动词，make notes“做笔记”，为动词短语，ask sb. to do sth.是固定搭配，意为“要求某人做某事”，make的不定式形式是to make。故填to make。 38．The teacher advised us (choose) a local natural wonder as the topic of our project. 【答案】to choose 【详解】句意：老师建议我们选择一个当地的自然奇观作为我们项目的课题。根据“The teacher advised us…”可知，此处是固定搭配advise sb. to do sth.，意为“建议某人做某事”，空处应用动词不定式形式作宾语补足语。故填to choose。 39．Some teenagers prefer (go) out for a run after school. 【答案】to go 【详解】句意：一些青少年更喜欢放学后出去跑步。go“去”，动词，prefer to do sth.“更喜欢做某事”，此处用动词不定式作宾语。故填to go。 40．Suzy would like (send) an email to her friend in the USA． 【答案】to send 【详解】句意：苏西想要给她在美国的朋友发一封电子邮件。send意为“发送”，是动词；根据固定搭配would like to do sth.“想要做某事”可知，此处需用动词不定式。故填to send。 41．We should try our best (protect) the animals in danger. 【答案】to protect 【详解】句意：我们应该尽力保护濒危动物。try one’s best to do sth.“尽力做某事”，固定搭配。故填to protect。 42．Don’t forget (follow) the class’s rules at the school. 【答案】to follow 【详解】句意：在学校不要忘记遵守班规。follow“遵守”，动词，forget to do sth.“忘记去做某事”，后面接动词的不定式形式。故填to follow。 43．She doesn’t know how (solve) this problem. 【答案】to solve 【详解】句意：她不知道如何解决这个问题。solve“解决”，动词，此处是“疑问词 + 动词不定式”结构，how这类疑问词后接动词时，需用动词不定式。故填to solve。        44．I don’t know what (do) next. Could you tell me, please? 【答案】to do 【详解】句意：我不知道下一步该做什么。你能告诉我吗？根据“I don’t know what...next.”可知，what表示“该……的事”时，后接动词不定式to do，构成固定搭配what to do，意为“该做什么”。故填to do。 45．The government made new rules (stop) people from driving after drinking. 【答案】to stop 【详解】句意：政府制定了新规定以禁止人们酒后驾车。根据“The government made new rules...people from...”可知空格处需填入不定式，表示制定规则的目的。括号内的提示词“stop”对应的不定式为“to stop”。故填to stop。 46．She asked me (help) her with English. 【答案】to help 【详解】句意：她请求我帮助她学习英语。ask sb. to do sth.表示“请求某人做某事”，所以空格处应填动词不定式to help。故填to help。 47．My parents allow me (watch) TV on weekends. 【答案】to watch 【详解】句意：周末，我的父母允许我看电视。allow sb to do sth表示“允许某人做某事”；此处用to do不定式作宾语补足语。故填to watch。 48．Don’t fail (call) me when you arrive at the airport. 【答案】to call 【详解】句意：你到机场时，别忘了给我打电话。 fail是动词，表示“未能”，其固定用法是fail to do sth.表示“未能做某事”，否定形式Don’t fail to do sth.表示“务必做某事、别忘记做某事”。 call sb.是固定短语，意为“给某人打电话”。 因此，这里要填动词不定式to call。 故填to call。 49．When I was young, I often watched Grandma (cook) but I never cooked anything myself. 【答案】cook 【详解】句意：我小时候经常看奶奶做饭，但我自己从来没做过。watch sb. do sth.“看见某人做某事（全过程或经常性）”，为省略to的动词不定式作宾语补足语。故填cook。 50．We should work hard (ride) the waves of our dreams. 【答案】to ride 【详解】句意：我们应该努力工作以驾驭梦想的浪潮。分析句子结构可知，此处应用动词不定式作目的状语，表示努力工作的目的是驾驭梦想的浪潮，用to ride。故填to ride。 试卷第1页，共3页 试卷第1页，共3页 学科网（北京）股份有限公司 $