Unit 2 第3课时 Grammar（分层练习）-2024-2025学年九年级英语上册新课标（核心素养）同步大师课堂（牛津译林版）

Unit 2 Colours 第3课时 分层练习 一、单词拼写 1．We shouldn’t tell strangers our (person) information carelessly. 2．The Smithsonian National Zoo in Washington, DC, kicked off a six-month (celebrate) of the 50th anniversary of the arrival of two giant pandas. 3．It’s safe not to leave your information on the Internet. （person） 4．If the writer didn’t have any (person) experiences, he couldn’t write such a wonderful novel. 5．The story is written from Mark Twain’s (person) experience. 6．This kind of plant will (无疑地) die if you water it too often. 7．It is dangerous to tell others your information on the Internet.(personality) 8．They organized a dinner party in (celebrate) of their victory. 9．My view is that pet owners should leave their pets at home. (person) 10．Our life is (certain) much better than it was five years ago. 11．It’s not polite to ask a stranger questions about his (person) life. 12．All the way the guide reminded us to take care of our (person) things. 13．Which colour do you prefer? It depends on (person) taste. 14．The president made a (person) visit to the village. 15．It’s impolite to read others’ (person) letters. 16．He is (certain) the most generous man I have ever met. 17．I don’t know (if) it will be fine tomorrow. 18．My (person) feeling is that not enough has been done. 19．“What difficulty do you have (make)a choice?”Mrs Rainbow asked Mr Brown. 20．Many pop stars dislike being asked (person) questions in public. 二、单项选择 21．—Could you please tell me ________ I can speak English well? —Why not use an English learning app like Fun Dubbing (趣配音) to help you? A．where B．whether C．what D．how 22．—Printing was first invented by the Chinese in the 7th century. —Wow! It’s been over 1,300 years! It’s really a (an) ______ invention! A．ancient B．digital C．medical 23．—I wonder ________ those books are useful to you. —Of course they are. They helped me so much when I wrote my book report. A．how B．why C．whether 24．Boys and girls, attention, please! Now let me tell you _______ better in the exams. A．how to do B．what to do C．whether to do D．what to do it 25．—Excuse me, do you know _________? —Sure. There is a drugstore down the street. A．when the band starts playing B．where I can buy some medicine C．how to get to the cinema D．if we will have an exam tomorrow 26．—Excuse me, do you know ________? I’ve just missed my train. —Yes. There is one in 20 minutes. A．how I can get to the train station B．if there’s another train later C．when I should arrive at the train station 27．This famous saying “When I walk along with two others, they may serve me as my teachers.” tells us ________. A．whom we can teach B．that we can learn from different persons C．what we said in public 28．I believe _____________ the Spring Festival will be fun. A．that B．how C．whether D．if 29．—I am wondering _________. —Whatever the result is, don’t be too hard on yourself. A．that I can pass the test B．how can I pass the test C．when can I prepare for the test D．if I can get high marks in the test 30．Lisa is studying abroad. She hasn’t decided ________ back to China because of the weather. A．if she flies B．whether she will fly C．when will she fly 31．— I’m not sure ________ my suggestion is helpful to you. — It certainly is. Every little bit helps. A．why B．how C．whether 32．—I wonder ________ he scanned the QR code (扫码) or not when going into the supermarket. —Of course he did. It’s the rule. Everyone must follow it. A．if B．whether C．that 33．—Do you know ________? —Yes. He is a lucky dog. A．whether he has passed the exam B．when he will come back C．Why his son came home D．where his son goes 34．—I’m not sure ________ my advice is helpful. —Of course. It helps a lot. A．that B．how C．whether 35．I want to know ________. A．whether you will travel to Qingyang B．how do you know about Qingyang C．when will you leave for Qingyang D．what will you do in Qingyang 36．They are talking about ________ they can borrow some money from their friends. A．if B．that C．whether D．who 37．Do you know ________ Beijing or not tomorrow? A．if they are leaving for B．whether they are leaving for C．whether are they leaving for D．if are they leaving for 38．—Excuse me, Mr Zhang. Could you please tell me ________ ? —Next Wednesday. Work hard and get ready for it. A． where I can pass the exam B． if we will have an exam C．when we will have the exam 39．Lisa didn’t do well in the exam. She worries about ________ she can pass it. A．whether B．if C．that 40．I don’t know________ he will come or not. A．that B．which C．whether 41．—I’m not sure ________ my suggestion is useful to you. —It certainly is. Every little bit helps. A．whether B．why C．how 42．—Michael, could you tell me ________? —I’d like to join the dancing club. A．why you like the dancing club B．which club you are going to join C．whether there are any clubs in your school 43．Harbin is a must-see place when visiting northeast China. I wonder ________ January is a good time to visit Harbin. A．that B．how C．whether 44．—I saw Mr. Li studying in the library half an hour ago. Could you tell me _________ now? —Oh, yes, he is still there. A．what he is studying for B．whether he is there C．whose book he is reading D．who he is studying with 45．—Hello, Tom! I want to go to science museum. But I don’t know ________. —Don’t worry. Let me tell you. A．how I can get there B．why I can get there C．if I can get there D．that I can get there 46．—I’m worried ________. —Whatever the result is, don’t be too hard on yourself. A．that he is eating breakfast now B．how have I prepared for my final exams C．if I can get great grades in the coming exams 47．The teacher told us ________ light ________ faster than sound. A．that...traveled B．that...travels C．whether...traveled 48．There’s no doubt ______ the effect of the COVID-19 pandemic ______ to the whole country. A．that, is spreading B．whether, has spread C．it, is spread 49．—Do you know that China’s traditional tea-making is now part of UNESCO’s intangible cultural heritage (联合国教科文组织非物质文化遗产)? —Of course, when hearing this exciting news, I jumped into the air to ________ it. A．celebrate B．hang C．promise 50．I know ________ she can do it well, but I’m not sure ________ she is willing to do it. A．that; that B．if; that C．that; if 三、阅读理解 The natural world is colorful with humans, plants and animals showing different colors. There can be many different colors in human skin and it changes with the sunshine, our feelings or our health. This is because of pigments (色素), which reflect light and make what the eye sees as colors. When we feel excited or angry, the heart can send more blood to the face and the pigments in the skin become red. Plants also have pigments. Colors are important for them to live on. The bright colors of flowers catch the attention of insects, which then carry their pollen (花粉) from one flower to another. Bees can see colors we cannot see, and they follow them to the inside of flowers. Without bees visiting flowers in this way, many plants would die out. Animals also use colors for their own needs. They protect themselves with different colors so as not to be seen by predators. The snowshoe hare, a kind of wild animal, changes colors with seasons for this reason. During summer it has a brown color, and in winter it is white so that it can hide in the snow. However, some animals use colors as a warning to make predators stay away. Bright colors such as yellow and red are often used in this way, Nature, however, is very clever, and predators also use colors to attract the animals they feed on. So, we can see that there are many different reasons and uses for colors in the natural world. Some uses of colors in nature remain unknown, but one thing is for sure. Colors not only make our planet beautiful, but they are also necessary for our planet to live on. 根据语篇内容，选择最佳选项。 51．Why does our skin become red when we feel angry? A．We are in very good health. B．Our hearts send more blood to our skin. C．The pigments reflect more bright light. 52．What can we learn from Paragraph 3? A．Why do flowers look beautiful. B．Colors are important for plants to live on. C．Why do insects like bright colors of flowers. 53．What does the underlined word “predators” most probably mean in Chinese? A．凶猛的动物 B．温驯的动物 C．捕食性动物 54．What does the example of the snowshoe hare in Paragraph 4 mainly tell us? A．It uses color to protect itself. B．It has different colors. C．It is very clever. 55．What’s the structure (结构) of the text?（P—Paragraph） A． S B． C． 学科网（北京）股份有限公司 $$ Unit 2 Colours 第3课时 分层练习 一、单词拼写 1．We shouldn’t tell strangers our (person) information carelessly. 【答案】personal 【详解】句意：我们不应该粗心大意地把我们的个人信息告诉给陌生人。information为名词，此处应用person的形容词personal修饰名词。故填personal。 2．The Smithsonian National Zoo in Washington, DC, kicked off a six-month (celebrate) of the 50th anniversary of the arrival of two giant pandas. 【答案】celebration 【详解】句意：华盛顿特区的史密森尼国家动物园开始了为期六个月的庆祝活动，庆祝两只大熊猫到来50周年。根据“....a six-month...(celebrate) of...”可知，此处需填名词的单数形式作宾语，所给词celebrate“庆祝”为动词，其名词为celebration。故填celebration。 3．It’s safe not to leave your information on the Internet. （person） 【答案】personal 【详解】句意：不要把你的个人信息留在网上是安全的。修饰名词information用形容词personal“个人的”。故填personal。 4．If the writer didn’t have any (person) experiences, he couldn’t write such a wonderful novel. 【答案】personal 【详解】句意：如果这位作家没有任何个人经历，他就写不出如此精彩的小说。空后有名词experiences，其前需形容词修饰。person的形容词形式为personal“个人的”。故填personal。 5．The story is written from Mark Twain’s (person) experience. 【答案】personal 【详解】句意：这个故事是根据马克·吐温的个人经历写成的。person是名词，应用其形容词personal“个人的”，修饰名词experience，故填personal。 6．This kind of plant will (无疑地) die if you water it too often. 【答案】certainly 【详解】句意：如果你浇水太频繁，这种植物无疑会死掉。“无疑地”对应的英文是“certainly”，副词修饰动词。故填certainly。 7．It is dangerous to tell others your information on the Internet.(personality) 【答案】personal 【详解】句意：在网络上告诉其他人你的信息非常危险。此空为形容词作定语，修饰名词。personality为名词，形容词形式为personal，表示“个人的”。故填personal。 8．They organized a dinner party in (celebrate) of their victory. 【答案】celebration 【详解】句意：他们组织了一场晚宴庆祝他们的胜利。“celebrate”是动词，表达“庆祝”，介词in后跟名词作宾语，celebrate对应的名词是celebration。故填celebration。 9．My view is that pet owners should leave their pets at home. (person) 【答案】personal 【详解】句意：我的个人看法是宠物主人应该把宠物留在家里。view“看法”，名词，故空格处应是形容词，作定语；person“人”，名词；personal“个人的”，形容词。故填personal。 10．Our life is (certain) much better than it was five years ago. 【答案】certainly 【详解】句意：我们的生活与五年前相比，确实更好了。certain“确实的”，是形容词，空处修饰形容词better，用副词，故填certainly。 11．It’s not polite to ask a stranger questions about his (person) life. 【答案】personal 【详解】句意：问一个陌生人有关他的私人生活的问题是不礼貌的。结合成分分析和句意可知，此空应填名词“person（人）”对应的形容词“personal（私人的、个人的）”作定语修饰其后的名词“life”，意为“私人的生活”。故填personal。 12．All the way the guide reminded us to take care of our (person) things. 【答案】personal 【详解】句意：导游一路上都在提醒我们注意自己的个人物品。根据空后的名词“things”可知，此处要用形容词修饰；person名词，表示“人”，其形容词为personal，表示“个人的”。故填personal。 13．Which colour do you prefer? It depends on (person) taste. 【答案】personal 【详解】句意：你更喜欢哪种颜色？取决于个人品味。根据句子结构可知，横线处修饰名词taste“品味”，用形容词，故把名词person“个人”，变成形容词，故填personal。 14．The president made a (person) visit to the village. 【答案】personal 【详解】句意：总统亲自访问了那个村庄。person人，名词；分析句子可知，此处修饰名词visit，应使用形容词；person对应的形容词是personal，表示“亲自的”。故填personal。 15．It’s impolite to read others’ (person) letters. 【答案】personal 【详解】句意：读别人的私人信件是不礼貌的。根据所给单词提示以及空后的名词可知，此空需要一个形容词来修饰名词，person的形容词形式为personal，故填personal。 16．He is (certain) the most generous man I have ever met. 【答案】certainly 【详解】certainly 句意：他一定是我曾经见过的最慷慨的人。修饰系动词is，故用副词，故为certainly。 17．I don’t know (if) it will be fine tomorrow. 【答案】whether     【详解】句意：我不知道明天是不是晴天。本句是宾语从句，don’t know表疑问，否定结构；根据句意语境和英文提示，空格处缺少的汉语“是否”用if或whether。故填whether。 18．My (person) feeling is that not enough has been done. 【答案】personal 【详解】句意：我个人的感觉是做得还不够。观察句子，这里应该是缺少一个词作定语修饰名词feeling，person的形容词形式personal adj.“个人的，私人的”，符合语境，故填personal。 19．“What difficulty do you have (make)a choice?”Mrs Rainbow asked Mr Brown. 【答案】making 【详解】句意：彩虹夫人问布朗先生：“做出选择有什么困难？”。固定搭配have difficulty in doing sth.做某事有困难。故填making。 20．Many pop stars dislike being asked (person) questions in public. 【答案】personal 【详解】句意：许多流行歌星不喜欢在公共场合被问到私人问题。此处是“许多流行歌星不喜欢被问私人问题”。此处是形容词作定语修饰questions。person名词，人，此处用形容词personal，私人的。根据题意，故答案为personal。 二、单项选择 21．—Could you please tell me ________ I can speak English well? —Why not use an English learning app like Fun Dubbing (趣配音) to help you? A．where B．whether C．what D．how 【答案】D 【详解】句意：——你能告诉我怎样才能把英语说得很好吗？——为什么不使用像趣配音这样的英语学习应用程序来帮助你呢？ 考查宾语从句连接词。where在哪里；whether是否；what什么；how如何。根据“Why not use an English learning app like Fun Dubbing (趣配音) to help you?”可知，说话人询问对方把英语说得很好的方式，应用how引导宾语从句。故选D。 22．—Printing was first invented by the Chinese in the 7th century. —Wow! It’s been over 1,300 years! It’s really a (an) ______ invention! A．ancient B．digital C．medical 【答案】A 【详解】句意：——印刷术最早是由中国人在七世纪发明的。——哇！已经有一千三百多年了！这真是一项古老的发明！ 考查形容词辨析。ancient古老的；digital数码的；medical医学的。根据“Wow! It’s been over 1,300 years!” 可知，印刷术历史悠久，说明它是一个古老的发明。故选A。 23．—I wonder ________ those books are useful to you. —Of course they are. They helped me so much when I wrote my book report. A．how B．why C．whether 【答案】C 【详解】句意：——我想知道那些书是否对你有用。——当然了。当我写读书报告时，它们给了我很大的帮助。 考查宾语从句的引导词。how如何；why为什么；whether是否。根据下文“Of course they are. They helped me so much when I wrote my book report.”可知是想知道这些书是否有用。故选C。 24．Boys and girls, attention, please! Now let me tell you _______ better in the exams. A．how to do B．what to do C．whether to do D．what to do it 【答案】A 【详解】句意：男孩女孩们，请注意！现在让我来告诉你如何在考试中做得更好。 考查疑问词+不定式。how to do如何做；what to do做什么；whether to do是否做；what to do it此表达错误。根据“Now let me tell you... better ”可知，指的是如何做得更好。故选A。 25．—Excuse me, do you know _________? —Sure. There is a drugstore down the street. A．when the band starts playing B．where I can buy some medicine C．how to get to the cinema D．if we will have an exam tomorrow 【答案】B 【详解】句意：——请问，你知道哪里可以买到药吗？——当然。这里街上有一家药店。 考查宾语从句。宾语从句使用陈述语序：连接词+主语+谓语。when何时；where哪里；how如何；if是否。根据回答“There is a drugstore down the street.”可知，上文是问地点，且与药店有关，故选B。 26．—Excuse me, do you know ________? I’ve just missed my train. —Yes. There is one in 20 minutes. A．how I can get to the train station B．if there’s another train later C．when I should arrive at the train station 【答案】B 【详解】句意：——对不起，你知道晚些时候还有没有火车吗？我刚刚错过了火车。——是的。20分钟后有一个。 考查宾语从句。根据“There is one in 20 minutes.”可知，问句是询问是否知道还有没有火车，故选B。 27．This famous saying “When I walk along with two others, they may serve me as my teachers.” tells us ________. A．whom we can teach B．that we can learn from different persons C．what we said in public 【答案】B 【详解】句意：“三人行，必有我师焉。”这句名言告诉我们可以向不同的人学习。 考查宾语从句。根据“When I walk along with two others, they may serve me as my teachers.”可知，此句意为“三人行，必有我师焉。”即我们要向别人学习。故选B。 28．I believe _____________ the Spring Festival will be fun. A．that B．how C．whether D．if 【答案】A 【详解】句意：我相信春节会很有趣。 考查宾语从句的引导词。that引导宾语从句时无意义；how怎样；whether/if是否。分析题干可知，空格处是宾语从句的引导词，从句不缺成分，且引导词无意义，只起连接作用，故选A。 29．—I am wondering _________. —Whatever the result is, don’t be too hard on yourself. A．that I can pass the test B．how can I pass the test C．when can I prepare for the test D．if I can get high marks in the test 【答案】D 【详解】句意：——我想知道我是否能在考试中取得高分。——无论结果如何，都不要对自己太苛刻。 考查宾语从句。宾语从句要用陈述句语序，所以选项B和选项C排除；结合选项和答语“Whatever the result is”可知，此处应表示“我想知道我是否能在考试中取得高分”，所以应用if引导宾语从句。故选D。 30．Lisa is studying abroad. She hasn’t decided ________ back to China because of the weather. A．if she flies B．whether she will fly C．when will she fly 【答案】B 【详解】句意：Lisa正在外国学习。由于天气问题她还没有决定是否将要坐飞机飞回中国。 考查宾语从句。 宾语从句要用陈述语序；根据“She hasn’t decided”可知，该动作还未发生，时态用一般将来时。故选B。 31．— I’m not sure ________ my suggestion is helpful to you. — It certainly is. Every little bit helps. A．why B．how C．whether 【答案】C 【详解】句意：——我不确定我的建议对你是否有帮助。——当然是。一点一滴都有帮助。 考查宾语从句的引导词。why为什么；how怎样；whether是否。根据答语“It certainly is.”可知，上句应是说不知道建议是否有用，应用whether来引导宾语从句。故选C。 32．—I wonder ________ he scanned the QR code (扫码) or not when going into the supermarket. —Of course he did. It’s the rule. Everyone must follow it. A．if B．whether C．that 【答案】B 【详解】句意：——我想知道他进超市的时候有没有扫码。——他当然扫了。这是规定。每个人都要遵守。 考查宾语从句的引导词。if是否（不与or not连用）；whether是否（可与or not连用）；that做宾语从句的引导词时无意义。分析“I wonder...he scanned the QR code (扫码) or not”可知，本句包含宾语从句，空格处是宾语从句的引导词，意为“是否”，且句中含有or not，故选B。 33．—Do you know ________? —Yes. He is a lucky dog. A．whether he has passed the exam B．when he will come back C．Why his son came home D．where his son goes 【答案】A 【详解】句意：——你知道他是否通过了考试吗？——是的。他是个幸运儿。 考查宾语从句。whether he has passed the exam他是否通过了考试；when he will come back他什么时候回来；why his son came home为什么他的儿子回家了；where his son goes他的儿子去哪。根据“Do you know...”并结合选项可知，空处为宾语从句；根据“Yes. He is a lucky dog.”可知，应该询问是否通过了考试。故选A。 34．—I’m not sure ________ my advice is helpful. —Of course. It helps a lot. A．that B．how C．whether 【答案】C 【详解】句意：——我不确定我的建议是否有用。——当然。这很有帮助。 考查宾语从句连接词。 that引导宾语从句，没有具体意义；how 如何；whether是否。根据“I’m not sure”可知，是指“我”不确定建议是否有用。故选C。 35．I want to know ________. A．whether you will travel to Qingyang B．how do you know about Qingyang C．when will you leave for Qingyang D．what will you do in Qingyang 【答案】A 【详解】句意：我想知道你是否会去青阳旅行。 考查宾语从句辨析。根据宾语从句“三要素”可知，宾语从句应用陈述句语序。故选A。 36．They are talking about ________ they can borrow some money from their friends. A．if B．that C．whether D．who 【答案】C 【详解】句意：他们正在讨论是否可以向朋友借些钱。 考查连词辨析。if是否；that引导从句，无意义；whether是否；who谁。根据“talking about...they can borrow some money from their friends.”可知是谈论是否可以向朋友借钱，作介词about的宾语，故用whether引导宾语从句。故选C。 37．Do you know ________ Beijing or not tomorrow? A．if they are leaving for B．whether they are leaving for C．whether are they leaving for D．if are they leaving for 【答案】B 【详解】句意：你知道他们明天是否去北京吗？ 考查宾语从句。宾语从句应用陈述句语序，所以排除选项C和D；根据“or not”可知，此处是whether引导的宾语从句。故选B。 38．—Excuse me, Mr Zhang. Could you please tell me ________ ? —Next Wednesday. Work hard and get ready for it. A． where I can pass the exam B． if we will have an exam C．when we will have the exam 【答案】C 【详解】句意：——打扰一下，张老师。你能告诉我我们什么时候考试吗？——下周三。努力学习，做好准备。 考查宾语从句。where I can pass the exam在哪里我才能通过考试；if we will have the exam next week我们下周是否有考试；when we will have the exam我们什么时候考试。根据“Could you please tell me...?”可知，空处应是宾语从句，用陈述句语序；结合回答“Next Wednesday”，此时宾语从句应以when来引导。故选C。 39．Lisa didn’t do well in the exam. She worries about ________ she can pass it. A．whether B．if C．that 【答案】A 【详解】句意：丽莎考试考得不好。她担心自己能否通过考试。 考查宾语从句。分析句子可知该句是宾语从句，设空处前有介词about，因此排除if，结合语境，设空处为“是否”之意，排除C。故选A。 40．I don’t know________ he will come or not. A．that B．which C．whether 【答案】C 【详解】句意：我不知道他是否会来。 考查宾语从句用法。that作为宾语从句的引导词，没有含义；which作为引导词，表哪一个；whether是否。由“or not”可知，应用whether，whether...or not“是否”是固定用法。故选C。 41．—I’m not sure ________ my suggestion is useful to you. —It certainly is. Every little bit helps. A．whether B．why C．how 【答案】A 【详解】句意：——我不确定我的建议是否对你是有用的。——当然有。一点一滴都有帮助。 考查宾语从句引导词。whether是否；why为什么；how怎样。根据“I’m not sure...my suggestion is useful to you.”可知，从句是疑问意义且从句不缺句子成分，因此用whether来连接，表示“是否”，故选A。 42．—Michael, could you tell me ________? —I’d like to join the dancing club. A．why you like the dancing club B．which club you are going to join C．whether there are any clubs in your school 【答案】B 【详解】句意：——迈克尔，你能告诉我你打算加入哪个俱乐部吗？——我想加入舞蹈俱乐部。 考查宾语从句。根据“I’d like to join the dancing club.”可知，此处是问要加入哪个俱乐部。故选B。 43．Harbin is a must-see place when visiting northeast China. I wonder ________ January is a good time to visit Harbin. A．that B．how C．whether 【答案】C 【详解】句意：哈尔滨是游览中国东北的必看之地。我想知道一月份是否是游览哈尔滨的好时机。 考查连词辨析。that引导从句无意义；how如何；whether是否。根据“wonder...January is a good time to visit Harbin.”可知想知道一月是否是参观哈尔滨的好时机。故选C。 44．—I saw Mr. Li studying in the library half an hour ago. Could you tell me _________ now? —Oh, yes, he is still there. A．what he is studying for B．whether he is there C．whose book he is reading D．who he is studying with 【答案】B 【详解】句意：——半小时前我看见李先生在图书馆学习。你能告诉我他现在是否还在那里呢？——哦，是的，他还在那儿。 考查宾语从句。what he is studying for他在学习什么；whether he is there他是否还在那里；whose book he is reading他在读谁的书；who he is studying with他和谁一起学习。根据答句“Oh, yes, he is still there.”可知，问句应是提问李先生是否还在图书馆。故选B。 45．—Hello, Tom! I want to go to science museum. But I don’t know ________. —Don’t worry. Let me tell you. A．how I can get there B．why I can get there C．if I can get there D．that I can get there 【答案】A 【详解】句意：——你好，汤姆！我想去科学博物馆。但我不知道怎么才能到那里。——别担心。让我来告诉你。 考查宾语从句连接词。how如何；why为什么；if是否；that引导宾语从句，无实际意义。根据“I want to go to science museum. But I don’t know”和答语可知，不知道如何去科学博物馆，应用how引导宾语从句，故选A。 46．—I’m worried ________. —Whatever the result is, don’t be too hard on yourself. A．that he is eating breakfast now B．how have I prepared for my final exams C．if I can get great grades in the coming exams 【答案】C 【详解】句意：——我担心我是否能在即将到来的考试中取得好成绩。——无论结果如何，都不要对自己太苛刻。 考查宾语从句。宾语从句应用陈述句语序，故排除选项B；根据“Whatever the result is, don’t be too hard on yourself.（无论结果如何，都不要对自己太苛刻）”可知，此处指担心自己能否在即将到来考试中取得好成绩。故选C。 47．The teacher told us ________ light ________ faster than sound. A．that...traveled B．that...travels C．whether...traveled 【答案】B 【详解】句意：老师告诉我们光比声音传播得快。 考查宾语从句与时态。分析题干可知该句是宾语从句，第一个空缺连接词，从句为陈述句，whether引导表示“是否”的一般疑问语气的宾语从句，因此排除选项C；第二个空缺谓语动词，因从句是客观事实或真理，不论主语用什么时态，从句都用一般现在时，因此用动词的第三人称单数形式travels。故选B。 48．There’s no doubt ______ the effect of the COVID-19 pandemic ______ to the whole country. A．that, is spreading B．whether, has spread C．it, is spread 【答案】A 【详解】句意：毫无疑问，COVID-19大流行的影响正在蔓延到全国。 考查that引导同位语从句及动词时态。that引导同位语从句时无意义；whether是否；it它。根据“There’s no doubt...”可知，此处是there’s no doubt that“毫无疑问……”，为固定句型，题干表述的是现在正在进行的动作，因此第二空处应用现在进行时态，表“正在传播、蔓延”，谓语结构是be doing。故选A。 49．—Do you know that China’s traditional tea-making is now part of UNESCO’s intangible cultural heritage (联合国教科文组织非物质文化遗产)? —Of course, when hearing this exciting news, I jumped into the air to ________ it. A．celebrate B．hang C．promise 【答案】A 【详解】句意：——你知道吗，中国的传统制茶现在是联合国教科文组织非物质文化遗产的一部分？——当然，当听到这个激动人心的消息时，我跳到空中庆祝。 考查动词辨析。celebrate庆祝；hang悬挂；promise承诺。根据“when hearing this exciting news, I jumped into the air to...it.”可知，此处指的是激动的跳起来庆祝这个好消息，故选A。 50．I know ________ she can do it well, but I’m not sure ________ she is willing to do it. A．that; that B．if; that C．that; if 【答案】C 【详解】句意：我知道她能做好它，但是我不确定她是否愿意做它。 考查宾语从句。第一个从句不缺成分，意义完整，后接that引导的宾语从句；第二个空“I’m not sure”后面一般接whether或if引导的宾语从句。故选C。 三、阅读理解 The natural world is colorful with humans, plants and animals showing different colors. There can be many different colors in human skin and it changes with the sunshine, our feelings or our health. This is because of pigments (色素), which reflect light and make what the eye sees as colors. When we feel excited or angry, the heart can send more blood to the face and the pigments in the skin become red. Plants also have pigments. Colors are important for them to live on. The bright colors of flowers catch the attention of insects, which then carry their pollen (花粉) from one flower to another. Bees can see colors we cannot see, and they follow them to the inside of flowers. Without bees visiting flowers in this way, many plants would die out. Animals also use colors for their own needs. They protect themselves with different colors so as not to be seen by predators. The snowshoe hare, a kind of wild animal, changes colors with seasons for this reason. During summer it has a brown color, and in winter it is white so that it can hide in the snow. However, some animals use colors as a warning to make predators stay away. Bright colors such as yellow and red are often used in this way, Nature, however, is very clever, and predators also use colors to attract the animals they feed on. So, we can see that there are many different reasons and uses for colors in the natural world. Some uses of colors in nature remain unknown, but one thing is for sure. Colors not only make our planet beautiful, but they are also necessary for our planet to live on. 根据语篇内容，选择最佳选项。 51．Why does our skin become red when we feel angry? A．We are in very good health. B．Our hearts send more blood to our skin. C．The pigments reflect more bright light. 52．What can we learn from Paragraph 3? A．Why do flowers look beautiful. B．Colors are important for plants to live on. C．Why do insects like bright colors of flowers. 53．What does the underlined word “predators” most probably mean in Chinese? A．凶猛的动物 B．温驯的动物 C．捕食性动物 54．What does the example of the snowshoe hare in Paragraph 4 mainly tell us? A．It uses color to protect itself. B．It has different colors. C．It is very clever. 55．What’s the structure (结构) of the text?（P—Paragraph） A． S B． C． 【答案】51．B 52．B 53．C 54．A 55．C 【导语】本文主要介绍了颜色在自然界中的用途及原因。人类的皮肤的颜色因为色素随着太阳、自身的感觉或健康而变化，花朵通过鲜艳的颜色吸引了昆虫来授粉得以繁殖，动物使用颜色保护自己免受危险。 51．细节理解题。根据“When we feel excited or angry, the heart can send more blood to the face and the pigments in the skin become red.”可知当我们感到兴奋或生气时，心脏会向面部输送更多的血液，皮肤中的色素就会变红。故选B。 52．细节理解题。根据“Plants also have pigments. Colors are important for them to live on”可知本段介绍植物的色素。颜色对它们的生存很重要。故选B。 53．词义推断题。根据“They protect themselves with different colors so as not to be seen by predators.”可知色素会保护动物，自然界中，会出现狩猎行为，因此会阻止遭遇捕食性动物。故选C。 54．推理判断题。根据“ The snowshoe hare, a kind of wild animal, changes colors with seasons for this reason. During summer it has a brown color, and in winter it is white so that it can hide in the snow.”可知雪兔会在不同季节，变成不同颜色，为了是保护自己。故选A。 55．篇章结构题。第一段引出主题，第二段到第四段介绍了人、动物和植物如何利用颜色，第五段总结。故选C。 学科网（北京）股份有限公司 $$