Unit 8 Imagine that! 原因状语从句（单元核心语法精练）英语新教材沪教版八年级下册

Unit 8 Imagine that! 核心语法精练（原因状语从句） 目录 A 考点概览·知识回顾 1 B 考点夯基·专项突破 2 一、选择题 2 二、用括号内动词的正确形式填空 3 三、完成句子 3 C 综合攻坚·能力跃升 4 题型一 语法选择 4 题型二 语法填空 5 原因状语从句 一、定义：用来说明主句原因的句子叫作原因状语从句。 二、常用引导词：because, since, as等。 三、时态使用：① 原因状语从句的主句用一般过去时，从句用过去时； ② 主句用一般现在时，从句可根据实际情况选择时态。 四、引导词辨析 because 表示必然的因果关系，语气最强，常用于回答why开头的疑问句。可放在句首，或句中（前一般有逗号）。 because和so不能同时出现在同一个句子中。 -- Why do you like reading? -- Because it is interesting. -- 你为什么喜欢阅读? -- 因为这很有趣。 since 意思为“既然”，表示已知的、显然的原因，语气比because弱，一般位于句首。 Since no one else saw these aliens, I refuse to believe you. 既然没有其他人看到这些外星人，我是不会相信你们的。 as 意思为“由于”，表示双方都已知的原因，语气比since弱，可位于句首或句中。 As it is raining, you’d better take an umbrella. 由于在下雨，你最好带伞。 五、because和because of辨析 1. because是连词，引导原因状语从句或回答以why开头的特殊疑问句。 We can’t have a picnic because it is rainy. 因为下雨，我们没法去野餐。 2. because of 是介词短语，后接名词、动名词或代词。 We can’t have a picnic because of the rain. 因为这场雨，我们没法去野餐。 一、选择题 1. She was late for class ________ she didn’t catch the early bus. A. so B. because C. although D. unless 2. —Why do you like your English teacher? —________ she is very friendly and helpful. A. So B. But C. Because D. And 3. ________ the weather was very cold, we stayed at home to read books. A. Because of B. As C. Unless D. Though 4. ________ the weather was bad, we stayed at home. A. So B. Since C. But D. Or 5. —Why was he late? —He was late ________ he was ill, not ________ the bad weather. A. because; because of B. because of; because C. because of; because of D. because; so 6. My mom _________ me _________ early yesterday morning because I was going to take a school trip and couldn’t be late. A. woke; up B. waken; up C. wake; up D. woke; on 7. I believe singing is the best way to express Chinese poems, ________ Chinese is really a language that rises and falls like music. A. because B. so C. although D. until 8. Since few young people are interested in cormorant fishing, perhaps this skill ________ in 50 years. A. has disappeared B. disappeared C. will disappear D. disappear 9. I am so excited because there ________ a school trip next month. A. is going to have B. is going to be C. are going to be D. are going to have 10. My parents ________ to work by bike every day because they think it’s good for health. A. go B. goes C. went D. will go 二、用括号内动词的正确形式填空 1. The little boy almost ________ (fall) over because he was reading while walking. 2. —It’s impossible to have my novel published. It’s always far from perfect. —I believe it ________ (happen) since you have a real gift for writing. 3. He didn’t watch anybody pass him because he ________ (communicate) with the headmaster. 4. As AI develops quickly, I am sure there ________ (be) more and more robots in the next festival. 5. The doorbell ________ (ring) just as I was leaving. 6. The world ________ (seem) smaller because of the Internet. 7. Everyone ________ (trust) his decisions because he thinks carefully. 三、完成句子 1. 我不需要穿外套，因为天气很暖和。   I don’t need to wear a coat, ________ the weather is warm. 2. 我早到了，因为我想占个好座位。   I arrived early, ________ I wanted to get a good seat. 3. 我们应该遵守规则，因为这些规则能给我们带来好处。 We should follow the rules ________ they can ________ us ________. 4. 既然你对科幻小说感兴趣，你应该读读《三体》。 ________ you are interested in science fiction, you should read “The Three-Body Problem”. 5. 我们应该少用纸，因为纸张是由树木做成的。 We should use less paper ________ paper ________ ________ ________ wood. 6. 由于天正在下雨，我们不得不取消运动会。 ________ it is raining, we have to cancel the sports meeting. 题型一 语法选择 How many things can you see in the night sky? A lot! 1 a clear evening you might see the Moon and some planets. And 2 sparkling stars can be seen, too. You can see even 3 with a telescope. You might see stars where you only saw dark space before. You might see 4 many stars look much larger than others. You might see some stars look white are really red and blue 5 . But scientists believe there are some 6 things in the sky that we never see. We 7 see them with the biggest telescope in the world, even when it is the clearest night of the year. That’s because they are the dead stars, which 8 black holes. You might find 9 hard to imagine stars die. After all, our Sun is a star. Year after year we see it burning 10 in the sky, giving us heat and light. The Sun doesn’t seem 11 getting old or weak. 12 , stars do burn out and die after billions of years. As a star’s gases are 13 , they give off light and heat. But when the gases run out, the star stops 14 and begins to die. So the next time you stare up at the amazing night sky, remember: there is more in the sky than that meets the eye. 15 wonderful place it is! 1. A. In B. On C. At D. For 2. A. hundred of B. hundreds C. hundreds of D. two hundreds 3. A. much B. many C. more D. most 4. A. when B. which C. what D. that 5. A. as well B. also C. either D. as well as 6. A. other B. another C. the other D. the others 7. A. can B. could C. can’t D. couldn’t 8. A. call B. called C. were called D. are called 9. A. this B. that C. one D. it 10. A. brighten B. brightly C. bright D. brightness 11. A. be B. being C. to be D. been 12. A. But B. So C. And D. However 13. A. burns B. burning C. to burn D. burned 14. A. shining B. to shine C. shines D. shine 15. A. How B. What C. What a D. How a 题型二 语法填空 阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。将答案填写在答题卷的相应位置。 For years, there has been an 1 (argue) among scientists about whether Mars once had oceans. Many guessed it might be true, but there were no strong facts 2 (prove) it—until recent space missions changed everything. Space research helps us 3 (unlock) the secrets of unknown worlds, and Mars is a perfect example. China’s Zhurong rover used ground-penetrating radar (探地雷达) to study the planet’s subsurface. The data 4 (show) that there are layered sediment structures (层状沉积物结构) 10 to 35 metres underground, which are very similar to coastal deposits on Earth. This 5 (find) raises powerful proof that Mars had a large ancient ocean billions of years ago. Beyond our solar system, scientists have found 6 (thousand) of exoplanets (系外行星). Some, like Kepler-22b, orbit in the habitable zone (宜居地带) of their stars, where liquid water might exist. These 7 (discover) don’t just answer old questions—they also make us wonder more about the universe. Space 8 (explore) is never easy, but every new finding 9 (remind) us how much there is to learn. As we keep looking up, we will surely know more mysteries of the unknown and gain a deeper 10 (understand) of our place in the universe. 1 / 12 学科网（北京）股份有限公司 $ Unit 8 Imagine that! 核心语法精练（原因状语从句） 目录 A 考点概览·知识回顾 1 B 考点夯基·专项突破 2 一、选择题 2 二、用括号内动词的正确形式填空 3 三、完成句子 3 C 综合攻坚·能力跃升 7 题型一 语法选择 7 题型二 语法填空 10 原因状语从句 一、定义：用来说明主句原因的句子叫作原因状语从句。 二、常用引导词：because, since, as等。 三、时态使用：① 原因状语从句的主句用一般过去时，从句用过去时； ② 主句用一般现在时，从句可根据实际情况选择时态。 四、引导词辨析 because 表示必然的因果关系，语气最强，常用于回答why开头的疑问句。可放在句首，或句中（前一般有逗号）。 because和so不能同时出现在同一个句子中。 -- Why do you like reading? -- Because it is interesting. -- 你为什么喜欢阅读? -- 因为这很有趣。 since 意思为“既然”，表示已知的、显然的原因，语气比because弱，一般位于句首。 Since no one else saw these aliens, I refuse to believe you. 既然没有其他人看到这些外星人，我是不会相信你们的。 as 意思为“由于”，表示双方都已知的原因，语气比since弱，可位于句首或句中。 As it is raining, you’d better take an umbrella. 由于在下雨，你最好带伞。 五、because和because of辨析 1. because是连词，引导原因状语从句或回答以why开头的特殊疑问句。 We can’t have a picnic because it is rainy. 因为下雨，我们没法去野餐。 2. because of 是介词短语，后接名词、动名词或代词。 We can’t have a picnic because of the rain. 因为这场雨，我们没法去野餐。 一、选择题 1. She was late for class ________ she didn’t catch the early bus. A. so B. because C. although D. unless 【答案】B 【详解】句意：她上课迟到了，因为她没赶上早班车。 so所以；because因为；although虽然；unless除非。前半句“上课迟到”是结果，后半句“没赶上早班车”是原因，前后构成因果关系，应用because引导原因状语从句。 2. —Why do you like your English teacher? —________ she is very friendly and helpful. A. So B. But C. Because D. And 【答案】 C 【详解】句意：——你为什么喜欢你的英语老师？——因为她非常友好且乐于助人。 So所以；But但是；Because因为；And而且。问句由疑问词“Why”引导，用于询问原因。回答“Why”引导的疑问句时，通常使用连词Because开头来陈述理由。 3. ________ the weather was very cold, we stayed at home to read books. A. Because of B. As C. Unless D. Though 【答案】B 【详解】句意：由于天气很冷，我们待在家里读书。 Because of因为（后接名词或代词）；As由于，因为（后接句子）；Unless除非；Though虽然。根据“the weather was very cold”是一个完整的主系表结构句子，排除介词短语Because of。根据句意可知前后分句是因果关系，天气冷是待在家里的原因，As符合题意。 4. ________ the weather was bad, we stayed at home. A. So B. Since C. But D. Or 【答案】B 【详解】句意：因为天气不好，所以我们待在家里。 So 所以；Since 因为；But 但是；Or 或者。分析句子可知，“the weather was bad”是“we stayed at home”的原因，应使用 since 引导原因状语从句。 5. —Why was he late? —He was late ________ he was ill, not ________ the bad weather. A. because; because of B. because of; because C. because of; because of D. because; so 【答案】A 【详解】句意：——他为什么迟到了？——他迟到是因为他生病了，而不是因为糟糕的天气。 because是连词，后接句子；because of是介词短语，后接名词或名词短语。第一空后是句子he was ill，应用because；第二空后是名词短语 the bad weather，应用because of。 6. My mom _________ me _________ early yesterday morning because I was going to take a school trip and couldn’t be late. A. woke; up B. waken; up C. wake; up D. woke; on 【答案】A 【详解】句意：我妈妈昨天早上很早叫醒了我，因为我要去参加学校旅行，不能迟到。 根据时间状语“yesterday morning”可知，句子时态为一般过去时，谓语动词需用过去式。固定搭配wake sb. up意为“叫醒某人”，wake的过去式为woke。B项形式错误，C项为动词原形，D项介词搭配错误。 7. I believe singing is the best way to express Chinese poems, ________ Chinese is really a language that rises and falls like music. A. because B. so C. although D. until 【答案】A 【详解】句意：我认为唱歌是表达中国诗歌最好的方式，因为汉语真的是一种像音乐一样抑扬顿挫的语言。 because因为；so所以；although虽然；until直到。根据“I believe singing is the best way to express Chinese poems…Chinese is really a language that rises and falls like music.”的语境可知，后句是在解释前句观点的原因，because用于引出原因，符合句子逻辑。 8. Since few young people are interested in cormorant fishing, perhaps this skill ________ in 50 years. A. has disappeared B. disappeared C. will disappear D. disappear 【答案】C 【详解】句意：由于很少有年轻人对鸬鹚捕鱼感兴趣，或许这种技能在50年后会消失。 考查动词时态，根据时间状语“in 50 years”可知，此处表示将来发生的事情，应用一般将来时，will disappear表示将来时，故选C。 9. I am so excited because there ________ a school trip next month. A. is going to have B. is going to be C. are going to be D. are going to have 【答案】B 【详解】句意：我很兴奋，因为下个月将有一次学校旅行。 is going to have语法错误； is going to be将有；are going to be：将有（主谓不一致）；are going to have语法错误。本题考查 there be 句型的将来时结构，正确形式为 there is/are going to be... 或 there will be...，根据句中“a school trip”是单数名词短语，be动词应使用单数形式is。 10. My parents ________ to work by bike every day because they think it’s good for health. A. go B. goes C. went D. will go 【答案】A 【详解】句意：我的父母每天骑自行车去上班，因为他们认为这对健康有益。 考查动词时态和主谓一致。根据every day（每天）可知，句子要用一般现在时；主语My parents是复数，谓语动词要用原形。选项A中go是动词原形，符合要求。故选A。 二、用括号内动词的正确形式填空 1. The little boy almost ________ (fall) over because he was reading while walking. 【答案】fell 【详解】句意：这个小男孩因为边走边看书，差点摔倒了。从句中“was reading”为过去进行时，主句动作发生在过去，故fall用过去式fell。 2. —It’s impossible to have my novel published. It’s always far from perfect. —I believe it ________ (happen) since you have a real gift for writing. 【答案】will happen 【详解】句意：——我的小说不可能出版。它总是远不够完美。——我相信会的，因为你有真正的写作天赋。happen“发生”，作谓语，根据“It’s impossible to have my novel published.”可知，空前的“it”指代小说出版，相信这件事将会发生，用一般将来时will do的结构。故填will happen。 3. He didn’t watch anybody pass him because he ________ (communicate) with the headmaster. 【答案】was communicating 【详解】句意：他没注意到有人经过他身边，因为他当时正在和校长交谈。主句“didn’t watch”是一般过去时，because引导的原因状语从句强调“当时正在做某事”，所以用过去进行时，主语是he，be用was，communicate的现在分词形式是去e加ing。故填was communicating。 4. As AI develops quickly, I am sure there ________ (be) more and more robots in the next festival. 【答案】will be 【详解】句意：随着人工智能的快速发展，我确信在下一个节日里会有越来越多的机器人。根据“in the next festival”可知，此处指的是未来的时间，应使用一般将来时态，其结构为“will+动词原形”。there be句型的一般将来时结构是“there will be”，表示“将会有”。故填will be。 5. The doorbell ________ (ring) just as I was leaving. 【答案】 rang 【详解】句意：我正要离开时，门铃响了。句中“just as I was leaving”是过去进行时，强调过去某个瞬间正在发生的动作，此时另一个短暂的动作（门铃响了）突然发生，需用一般过去时；ring是动词，意为“响”，其过去式为rang。 6. The world ________ (seem) smaller because of the Internet. 【答案】seems 【详解】句意：因为互联网，世界似乎变得更小了。句子主语“The world”为第三人称单数，句子描述的是客观事实，用一般现在时，因此谓语动词seem需要变为第三人称单数形式seems。 7. Everyone ________ (trust) his decisions because he thinks carefully. 【答案】trusts 【详解】句意：每个人都信任他的决定，因为他思考得很仔细。句中“because he thinks carefully”为原因状语从句，从句中使用了一般现在时，说明主句描述的也是现在的客观事实或状态，故主句应用一般现在时。主语“Everyone”是不定代词，作主语时谓语动词需用第三人称单数形式，故填trusts。 三、完成句子 1. 我不需要穿外套，因为天气很暖和。   I don’t need to wear a coat, ________ the weather is warm. 【答案】since/as 【详解】原句中“因为”是关键词，表示“因为”的连词是since或as，在句中引导原因状语从句。 2. 我早到了，因为我想占个好座位。   I arrived early, ________ I wanted to get a good seat. 【答案】since/as/because 【详解】原句中“因为”是关键词，表示“因为”的英文单词可以是“since”或“as”或“because”，二者均可引导原因状语从句。 3. 我们应该遵守规则，因为这些规则能给我们带来好处。 We should follow the rules ________ they can ________ us ________. 【答案】because bring advantages/benefits 【详解】原文中“因为”，“带来好处”是关键词。because表示因为，bring sb. advantage/benefit表示“给……带来好处”，此处表示泛指，名词用复数形式，故第一空填because，第二空填bring，第三空填advantages/benefits。 4. 既然你对科幻小说感兴趣，你应该读读《三体》。 ________ you are interested in science fiction, you should read “The Three-Body Problem”. 【答案】Since 【详解】原句中“既然”是关键词。汉语“既然”用于引出一个双方已知或说话人认定的事实，并在此基础上提出建议或推断。英语中，对应这一逻辑关系的连词为Since。 5. 我们应该少用纸，因为纸张是由树木做成的。 We should use less paper ________ paper ________ ________ ________ wood. 【答案】because is made from 【详解】原句中“因为”和“是由……做成的”是关键词。表示“因为”的词是because，用于引导原因状语从句。表示“由……做成”且在成品中看不出原材料（涉及化学变化）的短语是be made from。分析句式结构，从句主语paper为不可数名词，在陈述客观事实的一般现在时中，系动词应用is。 6. 由于天正在下雨，我们不得不取消运动会。 ________ it is raining, we have to cancel the sports meeting. 【答案】 As/Since 【详解】根据中英文对照可知，此处缺少“由于”。空格后“it is raining”是完整句子，需用引导原因状语从句的连词As或Since，二者均表示“由于、既然”，常用于句首。故填As/Since。 题型一 语法选择 How many things can you see in the night sky? A lot! 1 a clear evening you might see the Moon and some planets. And 2 sparkling stars can be seen, too. You can see even 3 with a telescope. You might see stars where you only saw dark space before. You might see 4 many stars look much larger than others. You might see some stars look white are really red and blue 5 . But scientists believe there are some 6 things in the sky that we never see. We 7 see them with the biggest telescope in the world, even when it is the clearest night of the year. That’s because they are the dead stars, which 8 black holes. You might find 9 hard to imagine stars die. After all, our Sun is a star. Year after year we see it burning 10 in the sky, giving us heat and light. The Sun doesn’t seem 11 getting old or weak. 12 , stars do burn out and die after billions of years. As a star’s gases are 13 , they give off light and heat. But when the gases run out, the star stops 14 and begins to die. So the next time you stare up at the amazing night sky, remember: there is more in the sky than that meets the eye. 15 wonderful place it is! 1. A. In B. On C. At D. For 2. A. hundred of B. hundreds C. hundreds of D. two hundreds 3. A. much B. many C. more D. most 4. A. when B. which C. what D. that 5. A. as well B. also C. either D. as well as 6. A. other B. another C. the other D. the others 7. A. can B. could C. can’t D. couldn’t 8. A. call B. called C. were called D. are called 9. A. this B. that C. one D. it 10. A. brighten B. brightly C. bright D. brightness 11. A. be B. being C. to be D. been 12. A. But B. So C. And D. However 13. A. burns B. burning C. to burn D. burned 14. A. shining B. to shine C. shines D. shine 15. A. How B. What C. What a D. How a 【答案】1. B 2. C 3. C 4. D 5. A 6. A 7. C 8. D 9. D 10. B 11. C 12. D 13. B 14. A 15. C 【导语】本文介绍宇宙当中的行星。 1. 句意：在晴朗的夜晚，你可能会看到月亮和一些行星。 In后接某年某月某季节；On后接具体一天；At后接具体时刻；For后接一段时间。根据“a clear evening”可知，这是指具体的一天。故选B。 2. 句意：还可以看到成千上万颗闪闪发光的星星。 hundred of没有此表达；hundreds数百；hundreds of成百上千的，表达不确定数；two hundreds表达错误，hundred前有基数词时，hundred不加s。根据空格后的“sparkling stars”可知，句子表达的是不确定数。故选C。 3. 句意：用望远镜你会看到更多。 much很多，修饰不可数名词；many很多，修饰可数名词复数；more更多（many和much的比较级）；most最多（much和many的最高级）。根据根据句意以及空格前的“even”可修饰比较级可知，空格上填比较级。故选C。 4. 句意：你可能会看到许多星星看起来比其他星星大得多。 when什么时候；which哪个；what什么；that那个，当引导宾语从句时，无意义。观察句子结构可知，“many stars look much larger than others.”是动词“see”看到的内容，空格所在句是宾语从句并且是陈述句，所以空格上应填引导词that。故选D。 5. 句意：你可能还会看到一些看起来白色的星星实际上是红色和蓝色的。 as well也（常用于句末）；also也（常用于肯定句句中）；either也（常用于否定句）；as well as也（用于句中）。此空位于肯定句句末，as well符合题意。故选A。 6. 句意：但科学家们相信，天空中还有一些我们从未见过的东西。 other其他的，是形容词，后跟名词复数；another另一个，指三者或三者以上的另一个，后跟名词单数；the other指另一个（有范围的）或者是其余的人或物，是代词；the others其余的（一个范围内的其他全部），是代词。根据空格后的词“things”是名词复数可知，空格上应填形容词。说的是其他的东西。故选A。 7. 句意：我们用世界上最大的望远镜也看不到它们。 can能；could能（can的过去式）；can’t不能；couldn’t不能（can’t的过去式）。根据前文的“things in the sky that we never see”可知，这里说的是“用望远镜也看不到它们”。故选C。 8. 句意：这是因为它们是被称为黑洞的死恒星。 call称呼；called称呼（call的过去式）；were called一般过去时被动语态；are called一般现在时的被动语态。观察句子结构可知，空格所在句是定语从句，“that”是引导词，指代“dead stars”，是复数形式，和所填词“call”之间是被动关系，应该用被动形式；根据“ they are the dead stars”可知，时态是一般现在时。故选D。 9. 句意：你可能会发现很难想象星星会消亡。this这个；that那个；one一个；it它。观察句子结构可知，本题考查it作形式宾语，真正的宾语是动词不定式。故选D。 10. 句意：年复一年，我们看到它在天空中明亮地燃烧，给我们带来热量和光。 brighten照亮，动词；brightly明亮地，副词；bright明亮的，形容词；brightness亮度，名词。观察句子结构可知，空格所填词修饰动词“burning”，故填副词形式。故选B。 11. 句意：太阳似乎并没有变老或变弱。 be是；being是（be的ing形式）；to be是（be的动词不定式形式）；been是（be的过去分词形式）。本题考查seem to do sth“似乎做某事”。故选C。 12. 句意：然而，恒星确实会在数十亿年后燃烧殆尽并死亡。 But但是；So因此；And和；However然而。空格前的句子说的是“太阳似乎并没有变老或变弱”空格后的句子说的是“stars do burn out and die after billions of years”，可知，这里是转折关系。根据空格后有逗号，符合however的用法。故选D。 13. 句意：当恒星的气体燃烧时，它们会发出光和热。 burns燃烧（burn的三单形式）；burning燃烧（burn的ing形式）；to burn燃烧（burn的不定式形式）；burned燃烧（burn 的过去式）。根据句意可知，句子说的是“当恒星的气体燃烧时”，故用burn的ing形式。故选B。 14. 句意：星星停止发光，开始死亡。 shining发光（shine的ing形式）；to shine发光（shine的不定式形式）；shines发光（shine的三单形式）；shine发光（动词原形）。根据语境可知，这里指的是停止发光这一动作。故用stop doing sth“停止做某事”。故选A。 15. 句意：这个地方多么棒啊！ How多么；What多么；What a多么一个；How a错误结构。根据句子结构可知，本题考查感叹句。观察句子结构可知，感叹句的主语“it”前是“wonderful place”，属于名词短语，符合what的感叹句结构“What + a/an ＋形容词＋可数名词单数＋主语＋谓语”，根据“wonderful place”的中心词“place”是一个可数名词单数，故用what a来引导这个感叹句，故选C。 题型二 语法填空 阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。将答案填写在答题卷的相应位置。 For years, there has been an 1 (argue) among scientists about whether Mars once had oceans. Many guessed it might be true, but there were no strong facts 2 (prove) it—until recent space missions changed everything. Space research helps us 3 (unlock) the secrets of unknown worlds, and Mars is a perfect example. China’s Zhurong rover used ground-penetrating radar (探地雷达) to study the planet’s subsurface. The data 4 (show) that there are layered sediment structures (层状沉积物结构) 10 to 35 metres underground, which are very similar to coastal deposits on Earth. This 5 (find) raises powerful proof that Mars had a large ancient ocean billions of years ago. Beyond our solar system, scientists have found 6 (thousand) of exoplanets (系外行星). Some, like Kepler-22b, orbit in the habitable zone (宜居地带) of their stars, where liquid water might exist. These 7 (discover) don’t just answer old questions—they also make us wonder more about the universe. Space 8 (explore) is never easy, but every new finding 9 (remind) us how much there is to learn. As we keep looking up, we will surely know more mysteries of the unknown and gain a deeper 10 (understand) of our place in the universe. 【答案】1. argument 2. to prove 3. unlock 4. shows 5. finding 6. thousands 7. discoveries 8. exploration 9. reminds 10. understanding 【导语】本文主要讲述了太空探索（尤其是对火星的研究）的新发现，以及这些发现如何加深了我们对宇宙的理解，同时也强调了太空探索的价值与未知性。 1. 句意：多年来，科学家们就火星是否曾有海洋存在争论。根据“an”后接可数名词单数可知，“argue”的名词形式是argument，表示“争论”。故填argument。 2. 句意：很多人猜测这可能是真的，但没有有力的事实去证明它——直到最近的太空任务改变了一切。“there be+名词+to do sth.”为固定结构，不定式作后置定语，此处用“to prove”表示“去证明”。故填to prove。 3. 句意：太空研究帮助我们解锁未知世界的秘密，而火星就是一个绝佳的例子。“help sb. (to) do sth.”为固定搭配，不定式符号“to”可省略。故填unlock。 4. 句意：数据显示地下10到35米处存在层状沉积物结构，这与地球沿海沉积物非常相似。描述客观科学事实或研究结论用一般现在时。“The data”在此处表示“数据（整体）”，动词“show”需用第三人称单数形式shows。故填shows。 5. 句意：这一发现为数十亿年前火星曾有大型古海洋提供了有力证据。根据“This”后接单数名词可知，“find”的名词形式是finding，表示“发现”。故填finding。 6. 句意：在太阳系之外，科学家发现了成千上万的系外行星。“thousands of”为固定短语，表示“成千上万的”，用于描述概数。故填thousands。 7. 句意：这些发现不仅解答了旧问题，也让我们对宇宙产生更多好奇。根据“These”后接复数名词可知，“discover”的名词形式是discovery，复数为discoveries，表示“发现”。故填discoveries。 8. 句意：太空探索从未容易，但每一项新发现都提醒我们还有很多知识要学习。空处位于“is”前，填名词作主语。根据“Space” 和“is never easy”可知，此处指太空探索。“explore”的名词形式是“exploration”，表示“探索”，不可数名词。故填exploration。 9. 句意：太空探索从未容易，但每一项新发现都提醒我们还有很多知识要学习。根据“is never easy”和第三人称单数主语“every new finding”可知，句子用一般现在时，动词“remind”需用第三人称单数形式reminds，作谓语。故填reminds。 10. 句意：当我们不断向上看时，我们必将了解更多未知的奥秘，并对我们在宇宙中的位置有更深刻的理解。空处填名词作宾语。“a deeper understanding of”为固定搭配，表示“对……更深刻的理解”，“understand”的名词形式是understanding。故填understanding。 1 / 12 学科网（北京）股份有限公司 $