2026年北师大版高中英语必修3第6单元语法练习题

2026年北师大版高中英语必修3第6单元语法练习题一、单项选择题（总共10题，每题2分，共20分）1.Inthearticle"TheImpactofSocialMediaonTeenagers,"theauthorusesthephrase"unprecedentedlevelsofconnectivity"toemphasizethe________.A.positiveeffectsofsocialmediaoncommunicationB.negativeconsequencesofsocialmediaonmentalhealthC.technologicaladvancementsinsocialmediaplatformsD.culturaldifferencesinsocialmediausageamongteenagers解析：本题考查第6单元重点语法——形容词比较级与最高级的运用。题干中的"unprecedentedlevelsofconnectivity"意为"前所未有的连接水平"，其中"unprecedented"为最高级形容词，强调程度之深。选项A的"positiveeffects"与原文语境不符，原文未明确指出积极影响；选项B的"negativeconsequences"与"unprecedented"的褒义色彩矛盾；选项C的"technologicaladvancements"偏离原文重点；选项D的"culturaldifferences"与原文未提及的内容关联，但干扰项设计需贴合易错点。正确答案为A，但需注意题干中"emphasize"暗示作者观点，而原文未明确说明，故需结合上下文判断。2.Accordingtothepassage"GlobalWarmingandItsEffects,"thesentence"Risingsealevelsthreatencoastalcities"usesa________toshowtheurgencyoftheproblem.A.passivevoicetohighlighthumanresponsibilityB.simplepresenttensetodescribefutureeventsC.compoundsentencetoemphasizemultipleimpactsD.relativeclausetoprovideadditionalinformation解析：本题考查第6单元被动语态与主动语态的区分。题干中的"Risingsealevelsthreatencoastalcities"为主动语态，强调自然现象的客观性，而非人类行为。选项A的"passivevoice"错误，原文未使用被动语态；选项B的"simplepresenttense"正确描述了客观事实，但未体现紧迫性；选项C的"compoundsentence"与原文结构不符；选项D的"relativeclause"未在句中体现。正确答案为B，但需注意题干中"urgency"暗示原文需体现紧迫性，而简单现在时虽未直接表达，但符合客观描述。3.Inthedialogue"ADayintheLifeofaStudent,"thephrase"Shehasbeenstudyingforthreehours"usesthe________toindicateacontinuousaction.A.presentperfectcontinuoustenseB.simplepasttenseC.futureperfecttenseD.presentcontinuoustense解析：本题考查第6单元时态辨析。题干中的"hasbeenstudying"为现在完成进行时，强调动作从过去持续到现在。选项B的"simplepasttense"仅表示过去完成；选项C的"futureperfecttense"描述未来动作；选项D的"presentcontinuoustense"表示当前进行，但未体现持续性。正确答案为A，但需注意题干中"continuousaction"需结合上下文判断，如原文未明确说明，则需根据语法规则选择。4.Theessay"TheImportanceofEnvironmentalProtection"usesthesentence"Manyspecieshavebecomeextinctduetohumanactivities"to________.A.provideevidenceforacause-and-effectrelationshipB.introduceanewtopicwitharelativeclauseC.describeapasteventwithpassivevoiceD.emphasizetheseverityoftheproblemwithanabsolutephrase解析：本题考查第6单元定语从句与被动态的运用。题干中的"Manyspecieshavebecomeextinct"为被动态，强调人类行为的影响。选项A的"cause-and-effectrelationship"与原文逻辑一致，但未体现语法重点；选项B的"relativeclause"未在句中体现；选项C的"passivevoice"正确描述了语法结构；选项D的"absolutephrase"与原文结构不符。正确答案为C，但需注意题干中"evidence"暗示原文需提供论据，而被动语态符合客观描述。5.Inthestory"AJourneytotheMountains,"thesentence"Themountainpathwastoosteepforhertoclimb"usesa________toshowthedifficultyofthetask.A.comparativeadjectivetohighlightthedegreeofsteepnessB.superlativeadjectivetoemphasizetheuniquenessofthepathC.passivevoicetoshiftfocusfromtheclimberD.relativeclausetoprovideadditionalcontext解析：本题考查第6单元形容词比较级与最高级的运用。题干中的"toosteep"为比较级，强调程度之高。选项B的"superlativeadjective"错误，原文未使用最高级；选项C的"passivevoice"与原文结构不符；选项D的"relativeclause"未在句中体现。正确答案为A，但需注意题干中"difficulty"暗示原文需体现挑战性，而比较级符合语境。6.Thearticle"TheRoleofTechnologyinEducation"usesthephrase"Ithasrevolutionizedthewaystudentslearn"to________.A.introduceanewtopicwitharelativeclauseB.describeapasteventwithpassivevoiceC.emphasizethetransformativeimpactoftechnologyD.provideevidenceforacause-and-effectrelationship解析：本题考查第6单元被动态与主语从句的运用。题干中的"revolutionized"为被动态，强调技术的影响。选项A的"relativeclause"未在句中体现；选项B的"passivevoice"正确描述了语法结构；选项C的"transformativeimpact"与原文逻辑一致，但未体现语法重点；选项D的"cause-and-effectrelationship"与原文未直接关联。正确答案为B，但需注意题干中"way"暗示原文需描述方式，而被动态符合客观描述。7.Inthespeech"ThePowerofKindness,"thesentence"Kindnesscanchangelives"usesa________toshowitsuniversalapplicability.A.simplepresenttensetodescribeageneraltruthB.passivevoicetoshiftfocusfromthedoerC.compoundsentencetoemphasizemultiplebenefitsD.relativeclausetoprovideadditionalinformation解析：本题考查第6单元一般现在时与被动态的运用。题干中的"canchange"为一般现在时，表示普遍真理。选项B的"passivevoice"与原文结构不符；选项C的"compoundsentence"与原文结构不符；选项D的"relativeclause"未在句中体现。正确答案为A，但需注意题干中"universalapplicability"暗示原文需体现普遍性，而一般现在时符合语境。8.Thearticle"TheBenefitsofExercise"usesthesentence"Regularphysicalactivityimprovesmentalhealth"to________.A.provideevidenceforacause-and-effectrelationshipB.introduceanewtopicwitharelativeclauseC.describeapasteventwithpassivevoiceD.emphasizetheimportanceofexercisewithanabsolutephrase解析：本题考查第6单元一般现在时与被动态的运用。题干中的"improves"为一般现在时，强调因果关系。选项A的"cause-and-effectrelationship"与原文逻辑一致，但未体现语法重点；选项B的"relativeclause"未在句中体现；选项C的"passivevoice"与原文结构不符；选项D的"absolutephrase"与原文结构不符。正确答案为A，但需注意题干中"benefits"暗示原文需提供论据，而一般现在时符合语境。9.Inthedialogue"AConversationAboutTravel,"thephrase"Shehastraveledtofivecontinents"usesthe________toindicateherlifeexperience.A.presentperfecttensetodescribeacompletedactionB.simplepasttensetodescribeapasteventC.futureperfecttensetodescribeafutureactionD.presentperfectcontinuoustensetoindicateacontinuousaction解析：本题考查第6单元时态辨析。题干中的"hastraveled"为现在完成时，强调过去的经历对现在的影响。选项B的"simplepasttense"仅表示过去完成；选项C的"futureperfecttense"描述未来动作；选项D的"presentperfectcontinuoustense"表示当前进行，但未体现持续性。正确答案为A，但需注意题干中"lifeexperience"需结合上下文判断，如原文未明确说明，则需根据语法规则选择。10.Theessay"TheValueofReading"usesthesentence"Readingbroadensone'shorizons"to________.A.provideevidenceforacause-and-effectrelationshipB.introduceanewtopicwitharelativeclauseC.describeapasteventwithpassivevoiceD.emphasizetheimportanceofreadingwithanabsolutephrase解析：本题考查第6单元一般现在时与被动态的运用。题干中的"broadens"为一般现在时，强调因果关系。选项A的"cause-and-effectrelationship"与原文逻辑一致，但未体现语法重点；选项B的"relativeclause"未在句中体现；选项C的"passivevoice"与原文结构不符；选项D的"absolutephrase"与原文结构不符。正确答案为A，但需注意题干中"importance"暗示原文需提供论据，而一般现在时符合语境。二、填空题（总共10题，每题2分，共20分）1.Thearticle"TheImpactofSocialMediaonTeenagers"statesthat"Manyteenagersspend________timeonsocialmediaplatforms."参考答案：toomuch解析：本题考查第6单元形容词比较级与最高级的运用。题干中的"toomuch"表示程度之高，符合原文语境。如原文未明确说明，则需根据语法规则选择，但需注意题干中"socialmediaplatforms"暗示原文需体现过度使用。2.Accordingtothepassage"GlobalWarmingandItsEffects,"thesentence"Risingsealevelsthreatencoastalcities"usesthe________toshowtheurgencyoftheproblem.参考答案：simplepresenttense解析：本题考查第6单元一般现在时的运用。题干中的"simplepresenttense"描述客观事实，符合原文语境。如原文未明确说明，则需根据语法规则选择，但需注意题干中"urgency"暗示原文需体现紧迫性。3.Inthedialogue"ADayintheLifeofaStudent,"thephrase"Shehasbeenstudyingforthreehours"usesthe________toindicateacontinuousaction.参考答案：presentperfectcontinuoustense解析：本题考查第6单元现在完成进行时的运用。题干中的"presentperfectcontinuoustense"强调动作的持续性，符合原文语境。如原文未明确说明，则需根据语法规则选择，但需注意题干中"continuousaction"暗示原文需体现持续性。4.Theessay"TheImportanceofEnvironmentalProtection"usesthesentence"Manyspecieshavebecomeextinctduetohumanactivities"to________.参考答案：passivevoice解析：本题考查第6单元被动态的运用。题干中的"passivevoice"强调人类行为的影响，符合原文语境。如原文未明确说明，则需根据语法规则选择，但需注意题干中"humanactivities"暗示原文需体现被动关系。5.Inthestory"AJourneytotheMountains,"thesentence"Themountainpathwastoosteepforhertoclimb"usesa________toshowthedifficultyofthetask.参考答案：comparativeadjective解析：本题考查第6单元形容词比较级的运用。题干中的"comparativeadjective"强调程度之高，符合原文语境。如原文未明确说明，则需根据语法规则选择，但需注意题干中"difficulty"暗示原文需体现挑战性。6.Thearticle"TheRoleofTechnologyinEducation"usesthephrase"Ithasrevolutionizedthewaystudentslearn"to________.参考答案：passivevoice解析：本题考查第6单元被动态的运用。题干中的"passivevoice"强调技术的影响，符合原文语境。如原文未明确说明，则需根据语法规则选择，但需注意题干中"way"暗示原文需体现被动关系。7.Inthespeech"ThePowerofKindness,"thesentence"Kindnesscanchangelives"usesa________toshowitsuniversalapplicability.参考答案：simplepresenttense解析：本题考查第6单元一般现在时的运用。题干中的"simplepresenttense"表示普遍真理，符合原文语境。如原文未明确说明，则需根据语法规则选择，但需注意题干中"universalapplicability"暗示原文需体现普遍性。8.Thearticle"TheBenefitsofExercise"usesthesentence"Regularphysicalactivityimprovesmentalhealth"to________.参考答案：cause-and-effectrelationship解析：本题考查第6单元因果关系从句的运用。题干中的"cause-and-effectrelationship"与原文逻辑一致，符合原文语境。如原文未明确说明，则需根据语法规则选择，但需注意题干中"benefits"暗示原文需提供论据。9.Inthedialogue"AConversationAboutTravel,"thephrase"Shehastraveledtofivecontinents"usesthe________toindicateherlifeexperience.参考答案：presentperfecttense解析：本题考查第6单元现在完成时的运用。题干中的"presentperfecttense"强调过去的经历对现在的影响，符合原文语境。如原文未明确说明，则需根据语法规则选择，但需注意题干中"lifeexperience"暗示原文需体现过去的经历。10.Theessay"TheValueofReading"usesthesentence"Readingbroadensone'shorizons"to________.参考答案：cause-and-effectrelationship解析：本题考查第6单元因果关系从句的运用。题干中的"cause-and-effectrelationship"与原文逻辑一致，符合原文语境。如原文未明确说明，则需根据语法规则选择，但需注意题干中"importance"暗示原文需提供论据。三、判断题（总共10题，每题2分，共20分）1.Thesentence"Manyteenagersspendtoomuchtimeonsocialmediaplatforms"usesasuperlativeadjectivetoemphasizethedegreeoftimespent.参考答案：False解析：本题考查第6单元形容词比较级与最高级的区分。题干中的"toomuch"为比较级，而非最高级，故判断错误。2.Thephrase"Ithasbeenrainingforthreehours"usesthepresentperfectcontinuoustensetoindicateacontinuousaction.参考答案：True解析：本题考查第6单元现在完成进行时的运用。题干中的"hasbeenraining"为现在完成进行时，强调动作的持续性，故判断正确。3.Thesentence"Regularphysicalactivityimprovesmentalhealth"usesapassivevoicetoshiftfocusfromthedoer.参考答案：False解析：本题考查第6单元主动语态与被动语态的区分。题干中的"improves"为主动语态，而非被动语态，故判断错误。4.Thephrase"Shehastraveledtofivecontinents"usesthepresentperfecttensetoindicateacompletedaction.参考答案：True解析：本题考查第6单元现在完成时的运用。题干中的"hastraveled"为现在完成时，强调过去的经历对现在的影响，故判断正确。5.Thesentence"Themountainpathwastoosteepforhertoclimb"usesacomparativeadjectivetoshowthedifficultyofthetask.参考答案：True解析：本题考查第6单元形容词比较级的运用。题干中的"toosteep"为比较级，强调程度之高，符合原文语境，故判断正确。6.Thephrase"Kindnesscanchangelives"usesasimplepresenttensetoshowitsuniversalapplicability.参考答案：True解析：本题考查第6单元一般现在时的运用。题干中的"canchange"为一般现在时，表示普遍真理，符合原文语境，故判断正确。7.Thesentence"Manyspecieshavebecomeextinctduetohumanactivities"usesapassivevoicetoshowtheimpactofhumanactions.参考答案：True解析：本题考查第6单元被动态的运用。题干中的"havebecomeextinct"为被动语态，强调人类行为的影响，故判断正确。8.Thephrase"Ithasrevolutionizedthewaystudentslearn"usesthepassivevoicetoindicatethetransformativeimpactoftechnology.参考答案：True解析：本题考查第6单元被动态的运用。题干中的"hasrevolutionized"为被动语态，强调技术的影响，符合原文语境，故判断正确。9.Thesentence"Readingbroadensone'shorizons"usesacause-and-effectrelationshiptoemphasizetheimportanceofreading.参考答案：True解析：本题考查第6单元因果关系从句的运用。题干中的"broadensone'shorizons"与"reading"构成因果关系，符合原文语境，故判断正确。10.Thephrase"Shehasbeenstudyingforthreehours"usesthepresentperfectcontinuoustensetoindicateacompletedaction.参考答案：False解析：本题考查第6单元时态辨析。题干中的"hasbeenstudying"为现在完成进行时，强调动作的持续性，而非完成性，故判断错误。四、简答题（总共8题，每题2分，共16分）1.Explainthedifferencebetweenthepresentperfecttenseandthesimplepasttenseinthecontextofthearticle"TheImpactofSocialMediaonTeenagers."参考答案：Thepresentperfecttense("hasbeenspending")isusedtodescribeanactionthatstartedinthepastandcontinuestothepresent,whilethesimplepasttense("spent")isusedtodescribeacompletedactioninthepast.Forexample,"Manyteenagershavebeenspendingtoomuchtimeonsocialmedia"emphasizestheongoingnatureoftheproblem,whereas"Manyteenagersspenttoomuchtimeonsocialmedialastyear"describesaspecificpastevent.解析：本题考查第6单元时态辨析。题干要求解释现在完成时与一般过去时的区别，需结合上下文说明两种时态的用法差异。正确答案需明确两种时态的时态特征，并结合原文语境进行举例说明。2.Describehowthepassivevoiceisusedinthepassage"GlobalWarmingandItsEffects"toshowtheurgencyoftheproblem.参考答案：Thepassivevoice("Risingsealevelsthreatencoastalcities")isusedtoshiftfocusfromthecause(humanactivities)totheeffect(threatenedcities),emphasizingtheseverityoftheproblem.Thisconstructionhighlightstheurgencybypresentingtheconsequencesasdirectresultsofglobalwarming,withoutexplicitlymentioninghumanresponsibility.解析：本题考查第6单元被动态的运用。题干要求描述被动态如何体现问题的紧迫性，需结合上下文说明被动态的语法结构及其作用。正确答案需明确被动态的用法，并结合原文语境进行举例说明。3.Explainhowthecomparativeadjective"toosteep"isusedinthestory"AJourneytotheMountains"toshowthedifficultyofthetask.参考答案：Thecomparativeadjective"toosteep"isusedtoindicateahigherdegreeofsteepness,makingthemountainpathdifficulttoclimb.Thisconstructionemphasizesthechallengebycomparingthepathtoastandardlevelofsteepness,suggestingthatitexceedswhatisconsideredmanageable.解析：本题考查第6单元形容词比较级的运用。题干要求解释比较级如何体现任务的难度，需结合上下文说明比较级的语法结构及其作用。正确答案需明确比较级的用法，并结合原文语境进行举例说明。4.Describehowthepresentperfectcontinuoustenseisusedinthedialogue"ADayintheLifeofaStudent"toindicateacontinuousaction.参考答案：Thepresentperfectcontinuoustense("hasbeenstudying")isusedtodescribeanactionthatstartedinthepastandcontinuestothepresent.Thisconstructionemphasizesthedurationandcontinuityoftheaction,showingthatthestudenthasbeenstudyingforanextendedperiodwithoutinterruption.解析：本题考查第6单元现在完成进行时的运用。题干要求描述现在完成进行时如何体现动作的持续性，需结合上下文说明现在完成进行时的语法结构及其作用。正确答案需明确现在完成进行时的用法，并结合原文语境进行举例说明。5.Explainhowthepassivevoiceisusedintheessay"TheImportanceofEnvironmentalProtection"toshowtheimpactofhumanactivities.参考答案：Thepassivevoice("Manyspecieshavebecomeextinct")isusedtoshiftfocusfromthedoer(humanactivities)totheeffect(extinctionofspecies).Thisconstructionemphasizestheconsequencesofhumanactionswithoutexplicitlymentioninghumanresponsibility,highlightingtheseverityofenvironmentalissues.解析：本题考查第6单元被动态的运用。题干要求描述被动态如何体现人类活动的影响，需结合上下文说明被动态的语法结构及其作用。正确答案需明确被动态的用法，并结合原文语境进行举例说明。6.Describehowthecomparativeadjective"toomuch"isusedinthearticle"TheImpactofSocialMediaonTeenagers"toshowthedegreeoftimespent.参考答案：Thecomparativeadjective"toomuch"isusedtoindicateanexcessivedegreeoftimespentonsocialmediaplatforms.Thisconstructionemphasizestheproblembysuggestingthatthetimespentexceedsareasonableoracceptablelevel,highlightingthenegativeimpactofsocialmediaonteenagers'lives.解析：本题考查第6单元形容词比较级的运用。题干要求描述比较级如何体现时间花费的程度，需结合上下文说明比较级的语法结构及其作用。正确答案需明确比较级的用法，并结合原文语境进行举例说明。7.Explainhowthepresentperfecttenseisusedinthearticle"TheBenefitsofExercise"todescribeageneraltruth.参考答案：Thepresentperfecttense("improvesmentalhealth")isusedtodescribeageneraltruththatregularphysicalactivityhasapositiveeffectonmentalhealth.Thisconstructionemphasizestheongoingbenefitsofexercise,suggestingthattheimprovementisaconsistentanduniversaloutcomeofphysicalactivity.解析：本题考查第6单元一般现在时的运用。题干要求描述一般现在时如何描述普遍真理，需结合上下文说明一般现在时的语法结构及其作用。正确答案需明确一般现在时的用法，并结合原文语境进行举例说明。8.Describehowtherelativeclauseisusedinthespeech"ThePowerofKindness"toprovideadditionalinformation.参考答案：Therelativeclause("Kindnesscanchangelives")providesadditionalinformationaboutthenatureandimpactofkindness.Thisconstructionusesarelativepronountoconnectthemainclausetotheadditionalinformation,emphasizingthetransformativepowerofkindnessbypresentingitasauniversaltruth.解析：本题考查第6单元定语从句的运用。题干要求描述定语从句如何提供附加信息，需结合上下文说明定语从句的语法结构及其作用。正确答案需明确定语从句的用法，并结合原文语境进行举例说明。五、应用题（总共8题，每题4分，共24分）1.Rewritethesentence"Manyteenagersspendtoomuchtimeonsocialmediaplatforms"usingthepassivevoicetoshiftfocusfromtheteenagerstothetimespent.参考答案：Toomuchtimeisspentbymanyteenagersonsocialmediaplatforms.解析：本题考查第6单元被动态的运用。题干要求将主动语态改为被动语态，需结合上下文说明被动态的语法结构及其作用。正确答案需明确被动态的用法，并结合原文语境进行改写。2.Rewritethesentence"Regularphysicalactivityimprovesmentalhealth"usingthepresentperfectcontinuoustensetoemphasizetheongoingnatureofthebenefits.参考答案：Regularphysicalactivityhasbeenimprovingmentalhealth.解析：本题考查第6单元现在完成进行时的运用。题干要求将一般现在时改为现在完成进行时，需结合上下文说明现在完成进行时的语法结构及其作用。正确答案需明确现在完成进行时的用法，并结合原文语境进行改写。3.Rewritethesentence"Themountainpathwastoosteepforhertoclimb"usingasuperlativeadjectivetoemphasizethedegreeofsteepness.参考答案：Themountainpathwasthesteepestforhertoclimb.解析：本题考查第6单元形容词最高级的运用。题干要求将比较级改为最高级，需结合上下文说明最高级的语法结构及其作用。正确答案需明确最高级的用法，并结合原文语境进行改写。4.Rewritethesentence"Kindnesscanchangelives"usingarelativeclausetoprovideadditionalinformationaboutthenatureofkindness.参考答案：Kindness,whichcanchangelives,isapowerfulforce.解析：本题考查第6单元定语从句的运用。题干要求添加定语从句，需结合上下文说明定语从句的语法结构及其作用。正确答案需明确定语从句的用法，并结合原文语境进行改写。5.Rewritethesentence"Shehastraveledtofivecontinents"usingthesimplepasttensetodescribeacompletedaction.参考答案：Shetraveledtofivecontinentslastyear.解析：本题考查第6单元一般过去时的运用。题干要求将现在完成时改为一般过去时，需结合上下文说明一般过去时的语法结构及其作用。正确答案需明确一般过去时的用法，并结合原文语境进行改写。6.Rewritethesentence"Ithasrevolutionizedthewaystudentslearn"usingthepassivevoicetoshiftfocusfromthedoertotheeffect.参考答案：Thewaystudentslearnhasbeenrevolutionizedbytechnology.解析：本题考查第6单元被动态的运用。题干要求将主动语态改为被动语态，需结合上下文说明被动态的语法结构及其作用。正确答案需明确被动态的用法，并结合原文语境进行改写。7.Rewritethesentence"Readingbroadensone'shorizons"usingacomparativeadjectivetoemphasizethedegreeofbroadening.参考答案：Readingbroadensone'shorizonsmorethanwatchingTVdoes.解析：本题考查第6单元形容词比较级的运用。题干要求添加比较级，需结合上下文说明比较级的语法结构及其作用。正确答案需明确比较级的用法，并结合原文语境进行改写。8.Rewritethesentence"Manyspecieshavebecomeextinctduetohumanactivities"usingthepresentperfectcontinuoustensetoemphasizetheongoingnatureoftheproblem.参考答案：Manyspecieshavebeenbecomingextinctduetohumanactivities.解析：本题考查第6单元现在完成进行时的运用。题干要求将一般过去时改为现在完成进行时，需结合上下文说明现在完成进行时的语法结构及其作用。正确答案需明确现在完成进行时的用法，并结合原文语境进行改写。【标准答案及解析】一、单项选择题1.A2.B3.A4.C5.A6.B7.A8.A9.A10.A二、填空题1.toomuch2.simplepresenttense3.presentperfectcontinuoustense4.passivevoice5.comparativeadjective6.passivevoice7.simplepresenttense8.cause-and-effectrelationship9.presentperfecttense10.cause-and-effectrelationship三、判断题1.False2.True3.False4.True5.True6.True7.True8.True9.True10.False四、简答题1.Thepresentperfecttense("hasbeenspending")isusedtodescribeanactionthatstartedinthepastandcontinuestothepresent,whilethesimplepasttense("spent")isusedtodescribeacompletedactioninthepast.Forexample,"Manyteenagershavebeenspendingtoomuchtimeonsocialmedia"emphasizestheongoingnatureoftheproblem,whereas"Manyteenagersspenttoomuchtimeonsocialmedialastyear"describesaspecificpastevent.2.Thepassivevoice("Risingsealevelsthreatencoastalcities")isusedtoshiftfocusfromthecause(humanactivities)totheeffect(threatenedcities),emphasizingtheseverityoftheproblem.Thisconstructionhighlightstheurgencybypresentingtheconsequencesasdirectresultsofglobalwarming,withoutexplicitlymentioninghumanresponsibility.3.Thecomparativeadjective"toosteep"isusedtoindicateahigherdegreeofsteepness,makingthemountainpathdifficulttoclimb.Thisconstructionemphasizesthechallengebycomparingth