Unit 3 The world at one click语法基础提升专项检测卷2026-2027学年译林版英语八年级下册

**基本信息** 聚焦现在完成时与一般过去时核心辨析，通过时态标志词识别、固定句型应用及动词延续性转换等方法体系，构建从基础到综合的知识逻辑链，提升语言运用与思维分析能力。 **专项设计** |模块|题量/典例|方法提炼|知识逻辑| |----|-----------|----------|----------| |单项选择|15题|时态标志词（just now/so far）、延续性动词转换（leave→be away）|从时态辨析到语境应用，层层递进| |动词填空|10题|现在完成时（since/yet）、一般过去时（ago）|强化时态与时间状语的匹配能力| |句型转换|6题|同义句转换（短暂→延续动词）、否定句yet用法|深化语法规则的灵活迁移| |语法填空|10空|综合时态（一般现在/过去/完成时）、固定句型（It's+adj.+to do）|语境中整合单元核心语法点|

八年级英语下册 Unit 3 The world at one click语法 基础提升专项检测卷 （满分：100分 时间：45分钟） 姓名：__________ 班级：__________ 得分：__________ 语 法 一、单项选择（每题2分，共30分） ( ) 1. —______ you ______ the new online museum? —Yes, I visited it last Sunday. A. Have; visited B. Did; visit C. Do; visit D. Will; visit ( ) 2. I ______ this useful website just now, and I ______ many skills from it so far. A.found; learned B. find; have learned C. found; have learned D. have found; learned ( ) 3. My father ______ in this city for ten years, and he still lives here now. A. lives B. lived C. has lived D. will live ( ) 4. —Have you finished your online course ______? —Yes, I have ______ finished it. A. yet; already B. already; yet C. yet; yet D. already; already ( ) 5. Tom ______ home two hours ago, so he ______ for two hours. A. left; has left B. has left; has been away C. left; has been away D. has left; left ( ) 6. ______ easy for us ______ different kinds of information on the Internet. A. It’s; find B. It’s; to find C. That’s; find D. That’s; to find ( ) 7. You can improve your English ______ listening to English news online every day. A. by B. with C. in D. for ( ) 8. —How long ______ you ______ the tablet? —Since I was ten years old. A. did; have B. have; had C. do; have D. will; have ( ) 9. Great changes ______ in our school in the past few years. A. took place B. take place C. have taken place D. are taking place ( ) 10. I ______ Suzhou twice, but I ______ there last winter. A. have been to; didn’t go B. have gone to; went C. have been to; went D. went; have been ( ) 11. —Why don’t you watch the online show? —I ______ it already. I watched it three days ago. A. watch B. watched C. have watched D. will watch ( ) 12. It’s dangerous ______ personal information to strangers online. A. give B. to give C. giving D. gives ( ) 13. He ______ computer games when he was young, but now he doesn’t. A. plays B. played C. has played D. will play ( ) 14. So far, our class ______ more than 20 useful learning websites. A. collects B. collected C. has collected D. will collect ( ) 15. —Has your brother returned from his online study trip ______? —No, he hasn’t. A. just B. yet C. already D. ever 二、用所给动词的适当形式填空（每题2分，共20分） 1. I ____________ (know) how to use this app since last term. 2. She ____________ (download) a piece of music five minutes ago. 3. My mother ____________ (not finish) her online work yet. 4. We ____________ (learn) a lot of knowledge on the Internet so far. 5. The boy ____________ (be) away from his computer for two hours. 6. They ____________ (visit) the online science museum yesterday afternoon. 7. It ____________ (be) convenient for us to shop online every day. 8. He ____________ (just finish) his English online test. 9. You can solve the problem ____________ (search) for help online. 10. It’s important ____________ (keep) safe when we surf the Internet. 三、句型转换（每空1分，共15分） 1. I bought this computer three years ago.（同义句） I ____________ ____________ this computer ____________ three years. 2. He has already learnt to search for information online.（改为否定句） He ____________ learnt to search for information online ____________. 3. They visited the website last week.（用so far改写句子） They ____________ ____________ the website so far. 4. It is useful to learn to use the Internet.（同义句） ____________ ____________ to use the Internet ____________ useful. 5. We can relax ourselves by watching short online videos.（对划线部分提问） ____________ ____________ we relax ourselves? 6. Tom joined the online reading club one year ago.（同义句） Tom ____________ ____________ in the online reading club ____________ one year. 四、语法正误改错（每题2分，共10分） 每句仅有一处错误，请找出并改正。 1. I have bought this phone for half a year. ( ) 2. It’s very usefully to study online. ( ) 3. He left his home since three days ago. ( ) 4. My father has gone to Nanjing twice. ( ) 5. We improve our English by read English articles online. ( ) 五、语法填空（短文语境综合运用，每空1.5分，共15分） 阅读短文，用正确时态、形式填空，综合考查本单元所有语法点。 The Internet changes our life greatly. It 1. _________ (make) our world much smaller. I 2. _________ (start) to use the Internet when I was seven years old. So far, I 3. ____________ (learn) lots of new skills. It’s easy for me 4. _________ (find) all kinds of useful information online. My brother likes studying online. He 5. __________ (just finish) his online lessons. He thinks he can improve himself 6. __________ (do) online exercises every day. Last weekend, our class 7. __________ (visit) an online art museum. We 8. _________ (be) never to such a special museum before. In fact, the Internet brings us many advantages, but it’s dangerous 9. _________ (give) personal information to strangers. We must learn to protect ourselves when we 10. __________ (surf) the Internet. 六、句子翻译（每题2分，共10分） 1. 到目前为止，我已经通过网络认识了很多新朋友。   2. 自从去年以来，他就一直在使用这个学习网站。 3. 通过网上旅行，我们可以足不出户看世界。   4. 上网的时候保持安全对青少年来说很重要。 5. 我爸爸两年前买了这台电脑，已经用了两年了。 解析版答案 一、单项选择（每题2分，共30分） 1. 答案：A解析：答句中 “Have you visited the new online museum?”（你参观过这个新的在线博物馆吗？） 这是现在完成时，表示过去的动作对现在造成的影响或结果，或者询问过去的经历。答语中用一般过去时 “I visited it last Sunday” 来具体说明参观的时间，这是非常自然且符 2. 答案：C 解析： just now （刚才）是一般过去时标志，动词用过去式 found ； so far （到目前为止）是现在完成时标志，结构为have/has + 过去分词，主语I，用 have learned 。故选C。 3. 答案：C 解析： for ten years （长达十年）表示动作持续一段时间，需要用现在完成时，且动词要用延续性动词。 has lived 是延续性表达，表示一直居住至今，故选C。 4. 答案：A 解析： yet 多用于疑问句和否定句，常放在句末； already 多用于肯定句，放在助动词之后、实义动词之前。本句前半句是疑问句用yet，后半句肯定句用already，故选A。 5. 答案：C 解析： two hours ago （两小时前）是一般过去时标志，动词用过去式 left ； for two hours 表持续时长，不能用短暂动词left，要换成对应的延续结构 has been away ，故选C。 6. 答案：B 解析：固定句型It’s + 形容词 + for sb. to do sth.，it作形式主语，真正主语是后面的动词不定式to do，故选B。 7. 答案：A 解析： by + doing sth.  表示“通过做某事（某种方式）”；with一般接工具，in多接语言/材料，for表目的，本句指通过听英语新闻的方式提升英语，故选A。 8. 答案：B 解析： How long （多久）提问持续时长， Since I was ten years old （自从我十岁）是现在完成时标志，动词需要延续性动词have，结构为have had，故选B。 9. 答案：C 解析： in the past few years （在过去几年里）是典型的现在完成时标志，take place无被动，现在完成时用have taken place，故选C。 10. 答案：C 解析： twice （两次）表示曾经去过（已经回来），用 have been to ； last winter （去年冬天）是明确过去时间，用一般过去时 went 。 have gone to 表示去了还没回来，不能和次数连用，故选C。 11. 答案：C 解析： already 是现在完成时标志词，强调“已经完成”，后文补充三天前看的，侧重现在的结果（已经看过了，不用再看），所以用have watched，故选C。 12. 答案：B 解析：固定句型It’s + 形容词 + to do sth.，it作形式主语，不定式to give作真正主语，故选B。 13. 答案：B 解析： when he was young （他年轻的时候）是过去的时间，描述过去发生的动作，用一般过去时played，故选B。 14. 答案：C 解析： so far （到目前为止）为现在完成时标志，主语our class视为整体，用has collected，故选C。 15. 答案：B 解析：yet常用于现在完成时的否定句、疑问句句末；just、already多用于肯定句，ever意为“曾经”，不符合本句语境，本句是一般疑问句，故选B。 二、用所给动词的适当形式填空（每题2分，共20分） 1. 答案：have known 解析： since last term （自从上学期）是现在完成时标志，know是延续性动词，主语I，用have known。 2. 答案：downloaded 解析： five minutes ago （五分钟前）是一般过去时标志，谓语动词用过去式。 3. 答案：hasn’t finished 解析： yet 用于现在完成时否定句，主语my mother是三单，用hasn’t finished。 4. 答案：have learned 解析： so far 现在完成时标志，主语we，用have learned。 5. 答案：has been 解析： for two hours 持续时长，be away延续结构，主语the boy三单，现在完成时has been。 6. 答案：visited 解析： yesterday afternoon 明确过去时间，一般过去时，动词过去式visited。 7. 答案：is 解析：描述日常客观事实，用一般现在时，it作主语，be动词用is。 8. 答案：has just finished 解析： just （刚刚）是现在完成时标志，主语he三单，has just finished。 9. 答案：by searching 解析：by后接动名词，表方式，search变动名词searching。 10. 答案：to keep 解析：固定句型It’s + adj. + to do sth.，不定式作真正主语。 三、句型转换（每空1分，共15分） 1. 答案：have had；for 解析：原句bought（买）是短暂动词， for three years 要换成延续性动词have；主语I，现在完成时have had。 2. 答案：hasn’t；yet 解析：现在完成时变否定，has后加not缩写hasn’t；already在否定句中改为yet放句末。 3. 答案：have visited 解析：so far是现在完成时标志，主语they，用have visited。 4. 答案：Learning；is 解析：同义转换，动名词Learning作句子主语，谓语动词用is。 5. 答案：How can 解析：划线部分 by watching short online videos 是方式，用How提问；原句含情态动词can，直接提前。 6. 答案：has been；for 解析：join（加入）是短暂动词， for one year 换成延续结构be in；主语Tom三单，现在完成时has been。 四、语法正误改错（每题2分，共10分） 1. 答案：bought → had 解析： for half a year 表持续时长，不能用短暂性动词buy，需要换成延续性have，现在完成时have had。 2. 答案：usefully → useful 解析：固定结构It’s + 形容词，usefully是副词，形容词形式为useful。 3. 答案：left → has been away 解析： since three days ago 要搭配现在完成时延续结构，left是短暂动词，改为has been away。 4. 答案：gone → been 解析： have gone to 表示去了某地还未回来； twice （两次）表示曾经去过并且已经回来，要用have been to。 5. 答案：read → reading 解析：介词by后面必须接动名词形式，read改为reading。 五、语法填空（短文语境综合运用，每空1.5分，共15分） 1. 答案：makes 解析：描述客观事实，一般现在时，it作主语，谓语三单makes。 2. 答案：started 解析： when I was seven years old 是过去时间，一般过去时，start过去式started。 3. 答案：have learned 解析：so far现在完成时标志，主语I，have learned。 4. 答案：to find 解析：It’s easy for sb. to do sth. 固定不定式结构。 5. 答案：has just finished 解析：just现在完成时标志，主语he三单，has just finished。 6. 答案：doing 解析：by doing sth. 表方式，doing作介词宾语。 7. 答案：visited 解析：Last weekend过去时间，一般过去时visited。 8. 答案：have never been 解析： before （以前），表示到现在为止从未去过，现在完成时have never been。 9. 答案：to give 解析：It’s + adj. + to do sth. 固定句型。 10. 答案：are surfing / surf 解析：when引导时间状语从句，可以用一般现在时表常态surf，也可用现在进行时are surfing强调正在上网时。 六、句子翻译（每题2分，共10分） 1. 答案：So far, I have made many new friends on the Internet. 解析：so far现在完成时标志；make friends 交朋友；on the Internet 在网上。 2. 答案：He has used this study website since last year. 解析：since last year现在完成时；use为延续动词，适合和since连用。 3. 答案：We can see the world without going out by travelling online. 解析：without doing sth. 不做某事；by travelling online 通过线上云旅行。 4. 答案：It’s very important for teenagers to keep safe when surfing the Internet. 解析：It’s + adj. + for sb. to do；when后可省略主语+be，直接用surfing。 5. 答案：My father bought this computer two years ago, and he has had it for two years. 解析：前半句two years ago一般过去时用bought；后半句for two years，改用延续动词have的现在完成时has had。 学科网（北京）股份有限公司 $