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/ 让学习更有效 期末备考培优 | 英语学科
/ 让学习更有效 期末备考培优 | 英语学科
2025-2026学年八年级下册英语期末复习考点培优人教版（新教材）
专题08 句型转换
学校:___________姓名：___________班级：___________考号：___________
1．He went to Shanghai yesterday. He is still there now. （合并为一句）
He ________ ________ ________ Shanghai.
2．She has already seen this movie. (改为否定句)
She ________ seen this movie yet.
3．He has returned the book to the library. (改为一般疑问句并做肯定回答)
— ________ he ________ the book to the library
— Yes, he ________.
4．The little girl was in danger. We must help her. (合并为一句)
We must help the little girl ________ ________.
5．I don’t know who I can ask for help when facing problems. (换为简单句)
I don’t know ________ ________ ask for help when facing problems.
6．It was a hot day. We stayed inside all afternoon. (合并为一句)
It was ________ hot ________ we stayed inside all afternoon.
7．The natural wonder is very amazing. (改为感叹句)
________ ________ the natural wonder is!
8．He decided to go there with his friend. (改为否定句)
He decided ________ ________ go there with his friend.
9．Mr. Smith teaches math. He came to our school in 2025. (since) (用现在完成时合并句子)
_______________________________________________________
10．We are good friends. We met each other in May. (since) (用现在完成时合并句子)
_______________________________________________________
11．We keep in touch with each other. We met 8 months ago. (for) (用现在完成时合并句子)
_______________________________________________________
12．The earthquake hit our hometown the day before yesterday. (改一般疑问句)
________ the earthquake ________ our hometown the day before yesterday
13．He lay awake most of the night.（改为否定句）
He ________ awake most of the night.
14．I was doing my homework. The typhoon landed on the coast. (用while合并句子)
___________________________________________________________
15．My father made dinner. The power went out. （用when合并句子）
___________________________________________________________
16．You feel upset about something. You should speak to a person you trust. (用 if 合并句子)
___________________________________________________________
17．They argued a lot. They are still very close friends. （用although合并句子）
___________________________________________________________
18．The strong winds started. We were driving home. （用when合并句子）
___________________________________________________________
19．He didn’t say sorry to his friend. He realized his mistake first. (用 until 合并句子)
___________________________________________________________
20．The girl cleaned the cut on her arm by herself. （改为一般疑问句，并作肯定回答）
— ________ the girl ________ the cut on her arm by herself
— ________, she ________.
21．You should drink some warm water. (改为否定句)
You ________ drink ________ warm water.
22．You should talk to your parents. They will know how you feel. （用so that合并句子）
___________________________________________________________
23．The rain started. We were reading under the tree.（合并为时间状语从句）
______________________________________________________.
24．I will go to the library. I will finish my homework. (用as soon as合并句子)
______________________________________________________.
25．In India, people use their left hand to eat. （改为一般疑问句，并作否定回答）
— ________ people in India ________ their left hand to eat
— ________, they ________ .
26．The Yangtze River is about 6,300 kilometres long. The Yellow River is 5,464 kilometres long. （用 longer than 合并句子）
___________________________________________________________
27．This waterfall is very beautiful. That waterfall is more beautiful. （用more… than合并句子）
That waterfall ________ ________ ________ than this one.
28．Rose has already cleaned the cages. （改为否定句）
Rose ________ cleaned the cages ________.
29．He has been a volunteer for the Red Cross for five years. （改为一般疑问句，并作肯定回答）
— ________ he ________ a volunteer for the Red Cross for five years
— ________, he ________.
30．They have never read a fantasy novel before. （改为一般疑问句，并作肯定回答）
— ________ they ________ read a fantasy novel before
— ________, they ________.
31．I borrowed this book from the library three days ago. （改为同义句，用现在完成时）
I ________ this book from the library for three days.
32．She has already finished her book report. (改为否定句)
She ________ finished her book report ________.
33．I decided that I would try calligraphy. (改为简单句，用不定式)
I decided ________ ________ calligraphy.
34．“Don’t give up easily,” the instructor said to me. (改为间接引语，用 tell sb. not to do sth.)
The instructor ________ me ________ ________ ________ up easily.
35．My father taught me how I could play the guitar. （改为简单句，用不定式）
My father taught me ________ ________ ________ the guitar.
36．He was walking home. It began to snow.（用when合并句子）
He ________ ________ home ________ it began to snow.
37．They were cleaning the classroom at that time yesterday. (改为一般疑问句)
________ they ________ the classroom at that time yesterday
38．They waited for the sunrise until 6 o’clock in the morning. (改为否定句)
They ________ ________ for the sunrise until 6 o’clock in the morning.
39．The hill is very steep. We can’t climb it easily. (用 so...that 合并句子)
The hill is ________ steep ________ we can’t climb it easily.
40．I didn’t go to bed. I finished my diary. (合并为一句)
I didn’t go to bed ________ I finished my diary.
41．She gets up early every morning in order to catch the first bus. (改为同义句)
She gets up early every morning ________ ________ she can catch the first bus.
42．She was singing in the bathroom. (改为否定句)
She ________ in the bathroom.
43．He walked to school yesterday. (用at this time yesterday改写)
He ________ to school at this time yesterday.
44．My elder sister has already finished her homework.（改为否定句）
My elder sister ________ her homework ________.
45．My father was sleeping; My mother was reading a book. (合并为一句，用while)
____________________________________
46．I was watching a movie at 8 p.m. last Saturday. (改为否定句)
I ________ a movie at 8 p.m. last Saturday.
47．We were eating dinner when the lights went out. (改为一般疑问句)
________ dinner when the lights went out
48．My parents advise me to keep a balanced diet.（改为否定句）
My parents advise me ________ ________ keep a balanced diet.
49．He works hard to improve his skills.（改为否定句）
He works hard ________ ________ improve his skills.
50．The dog was barking loudly at midnight. (改为一般疑问句)
________ loudly at midnight
51．They often share reading experience with each other.（改为过去时）
They ________ ________ reading experience with each other last week.
52．There is something interesting to do to relax. (改为否定句)
There ________ ________ interesting to do to relax.
53．We should take reading notes while reading. (改为一般疑问句)
________ we ________ reading notes while reading
54．She borrowed a book from the library yesterday. (改为否定句)
She ________ ________ a book from the library yesterday.
55．You should eat too much sweet food. (改为否定句)
You ________ ________ too much sweet food.
56．While my mother was cooking, my father was watching TV. (用when改写句子)
My father was watching TV ________ my mother ________ cooking.
57．Mike should go to the hospital at once. (改为一般疑问句)
________ Mike ________ to the hospital at once
58．I was reading a book when the rainstorm came. (改为一般疑问句)
________ you ________ a book when the rainstorm came
59．The rain stopped. We went home. (用when合并句子)
We ________ ________ ________ the rain stopped.
60．They kept a record of disaster safety skills they learned yesterday. (改为一般疑问句)
________________________________________________________________
/ 让学习更有效 期末备考培优 | 英语学科
/ 让学习更有效 期末备考培优 | 英语学科
21世纪教育网(www.21cnjy.com)
21世纪教育网(www.21cnjy.com)
参考答案及试题解析
1．has gone to
【解析】句意：他昨天去了上海。他现在还在那里。合并后体现“去了某地且尚未返回”的含义，所以要用现在完成时的固定结构“have/has gone to”来表达。主语He是第三人称单数，助动词用has。
2．hasn’t
【解析】句意：她已经看过这部电影了。原句是现在完成时，现在完成时中,already和yet都可以表示“已经”的意思，already用于肯定句, 放在句中或句尾；yet用于否定句或疑问句中, 放在句尾。现在完成时改为否定句时，需在助动词has后加not，通常可缩写为hasn’t，故填hasn’t。
3．Has returned has
【解析】句意：他已经把书还给图书馆了。原句时态为现在完成时，变一般疑问句时，需将助动词 has 提至句首，首字母要大写，动词“returned”保持过去分词形式不变。现在完成时一般疑问句的肯定回答结构为“Yes, 主语 + have/has”，原句主语是“he”，故助动词填has。
4．in danger
【解析】句意：这个小女孩处于危险中。我们必须帮助她。合并之后的句子，介词短语“in danger”作后置定语，修饰前面的名词“the girl”。故填in；danger。
5．who/whom to
【解析】句意：当遇到问题时，我不知道可以向谁求助。原句是宾语从句结构，改为简单句时，可将“who I can ask”转换为“who//whom to ask”的“疑问词+不定式”结构，其余部分不变。
6．so that
【解析】句意：天气很热，我们整个下午都待在室内。原句表示因果关系（因为热，所以待在室内），合并后需使用“so...that...”结构，表示“如此……以至于……”。其中“so”修饰形容词“hot”，“that”引导结果状语从句。
7．How amazing
【解析】句意：这个自然奇观太神奇了。根据“...the natural wonder is!”可知，感叹句中心词为形容词amazing，因此用“How+形容词+主语+谓语”结构表达。
8．not to
【解析】句意：他决定和他的朋友一起去那里。“decided to do sth.”表示“决定做某事”。改为否定句时，在不定式符号“to”前加“not”，构成“decided not to do sth.”，意为“决定不做某事”。
9．Mr. Smith has taught math since he came to our school in 2025.
【解析】句意：史密斯先生教数学。他于2025年来到我们学校。用since合并句子时，主句需用现在完成时，从句用一般过去时。主句主语是Mr. Smith，谓语需改为has taught，宾语math保持不变；从句用since连接，内容保持不变，即“Mr. Smith has taught math since he came to our school in 2025.”
10．We have been good friends since we met each other in May.
【解析】句意：我们是好朋友。我们在五月相遇。用现在完成时和since合并句子，since引导的时间状语从句用一般过去时，主句用现在完成时，表示从过去某一时间开始一直持续到现在的状态，其结构为“have/has+过去分词”；主语是We，助动词用have，be的过去分词是been。
11．We have kept in touch with each other for eight months.
【解析】句意：我们已经互相保持联系八个月了。用for引导时间段“eight months”，主句用现在完成时，keep in touch变为have kept in touch ； met 8 months ago转换为for eight months。
12．Did hit
【解析】句意：地震前天袭击了我们的家乡。原句中“hit”是过去式（hit的过去式与原形相同），表明时态为一般过去时，且谓语为实义动词。改为一般疑问句时，需要在句首添加助动词Did，后接动词原形（hit的原形仍为hit）。
13．didn’t lie
【解析】句意：他夜里大部分时间都醒着。句子为一般过去时，变成否定句需借助助动词didn’t，后面动词恢复原形，lay译为“躺着”时的原形是lie，应填didn’t lie。
14．While I was doing my homework, the typhoon landed on the coast./The typhoon landed on the coast while I was doing my homework.
【解析】句意：当我正在做作业的时候，台风登陆了海岸。while引导的时间状语从句，强调主句的短暂动作发生在从句的持续动作的过程中。从句I was doing my homework是持续的背景动作，所以用过去进行时，需用while引导；主句The typhoon landed on the coast是短暂发生的动作，所以用一般过去时。从句放句首时，需要在从句末尾加逗号，再写主句；从句放句尾时，不需要加逗号，句子符合英语的自然表达习惯。两种写法语法都正确。
15．My father was making dinner when the power went out.
【解析】句意：我爸爸正在做晚饭。停电了。“The power went out”是瞬间发生的动作，made dinner可写为“was making dinner”表示“正在做”的持续性动作；长动作被短动作打断 → 长动作用进行时，短动作用一般过去时，符合“be doing…when…”句型。
16．If you feel upset about something, you should speak to a person you trust.
【解析】句意：你因为某事感到心烦意乱。你应该找一个你信任的人倾诉一下。if引导的条件状语从句，用来表示“如果……，就……”的逻辑关系。原句中feel upset about something是条件，故填If you feel upset about something, you should speak to a person you trust.
17．Although they argued a lot, they are still very close friends.
【解析】句意：他们经常吵架。他们仍然是亲密的朋友。题目要求用“although”合并句子，表示转折让步关系。“although”引导让步状语从句，意为“虽然”，从句和主句主语相同，可直接合并。且句首首字母要大写。
18．We were driving home when the strong winds started./When the strong winds started, we were driving home.
【解析】句意：我们正开车回家，这时突然刮起了大风。主句为“We were driving home”，用过去进行时，表示持续进行的长动作；从句为“when the strong winds started”，when引导时间状语从句，用一般过去时，表示突然发生的短动作；符合“be doing…when…”的语法结构；也可以把从句放在句首。
19．He didn’t say sorry to his friend until he realized his mistake.
【解析】句意：他没有向他的朋友道歉。他首先意识到了自己的错误。本句要求用until合并句子，结合句中的didn’t可知，本句用not… until…的句型。主句的动作在until事件发生之后才发生 ，因此He didn’t say sorry to his friend作为主句，用until引导时间状语从句until he realized his mistake。故填He didn’t say sorry to his friend until he realized his mistake.
20．Did clean Yes did
【解析】句意：那个女孩独自清理了胳膊上的伤口。原句为一般过去时，变疑问加助动词Did（位于句首首字母大写），后面动词还原为原形clean。一般过去时一般疑问句肯定回答用Yes，主语后接助动词did。
21．shouldn’t any
【解析】句意：你应该喝点温水。should为情态动词，改否定句，直接在其后加not，缩写形式为shouldn’t；some多用于肯定句，需改为any。
22．You should talk to your parents so that they will know how you feel.
【解析】句意：你应该和你的父母谈谈。他们能理解你的感受。so that用来表示“为了……、以便……”，原句中they will know how you feel是目的，因此主句是You should talk to your parents，so that引导目的从句so that they will know how you feel。故填You should talk to your parents so that they will know how you feel.
23．We were reading under the tree when the rain started./The rain started while we were reading under the tree
【解析】句意：雨下起来了。我们当时正在树下看书。合并为时间状语从句，需用连词when或while，①可用：过去进行时+when+一般过去时的结构，合并为：We were reading under the tree when the rain started②可用：一般过去时+while+过去进行时的结构，合并为：The rain started while we were reading under the tree。
24．I will go to the library as soon as I finish my homework.
【解析】句意：我要去图书馆。我要完成作业。用as soon as合并句子时，as soon as引导时间状语从句，主句用一般将来时，从句用一般现在时表将来，主语I不变。
25．Do use No don’t
【解析】句意：在印度，人们用左手吃饭。含实义动词use的一般现在时陈述句变一般疑问句时，句子主语people为复数，需要借助助动词Do提至句首，句中的实义动词use保持原形，句子结构是Do + 主语 + 动词原形 + 其他。否定回答结构是No,+ 主语 + don’t，答句的主语用they指代问句中的people符合逻辑。
26．The Yangtze River is longer than the Yellow River.
【解析】句意：长江长约6300公里。黄河长5464 公里。题目要求用longer than合并句子，比较级的句子结构为A+be动词+形容词比较级+than+B。根据原句可知，长江比黄河长，主语The Yangtze River是单数，be动词用is。故填The Yangtze River is longer than the Yellow River.
27．is more beautiful
【解析】句意：这个瀑布很漂亮。那个瀑布更漂亮。题目要求用more… than合并句子，比较级的句子结构是A+be动词+形容词比较级+than+B。beautiful是多音节形容词，它的比较级形式是more beautiful，主语That waterfall是单数，be动词用is。
28．hasn’t/has not yet
【解析】句意：Rose 已经打扫完笼子了。原句是现在完成时，结构为：主语+has/have+过去分词，助动词是has。否定句转换规则：现在完成时变否定句，直接在助动词has/have后加not，has not可缩写为 hasn’t。原句中的already（已经）通常用于肯定句，否定句中要替换为yet（还/仍），且yet一般放在句末。故填hasn’t/has not；yet。
29．Has been Yes has
【解析】句意：他已经当了五年红十字会志愿者。本句时态为现在完成时，主语He为第三人称单数，变一般疑问句将助动词“has”提至句首，句首字母大写；过去分词“been”不变，位于主语之后；肯定回答用“Yes, he has”。
30．Have ever Yes have
【解析】句意：他们以前从未读过奇幻小说。原句是现在完成时的陈述句，变一般疑问句时，需要把助动词have提到句首，never改为ever，肯定回答是Yes+主语+have/has，因为回答里的主语是复数they，所以用have。故依次填Have；ever；Yes；have。
31．have kept
【解析】句意：这本书我已经从图书馆借了三天了。原句用一般过去时“I borrowed this book three days ago.”表示三天前借了书，改为同义句时要求使用现在完成时，且句中出现了时间段“for three days”。由于borrow是短暂性动词，不能与时间段连用，在现在完成时中需转换为延续性动词keep，表示“借阅并保留”的状态。主语I搭配现在完成时结构have done。故填have kept。
32．hasn’t yet
【解析】句意：她已经完成了她的读书报告。原句中“already”是关键词，表示“已经”，常用于肯定句。改为否定句时，需要将“already”改为“yet”，并借助助动词“has”的否定形式。“has already finished”的否定形式为“hasn’t finished...yet”。
33．to try
【解析】句意：我决定试试书法。原句是decide后接宾语从句的结构，同义结构为“decide to do sth”来改写，表示“决定做某事”。
34．told not to give
【解析】句意：教练告诉我不要轻易放弃。原句是直接引语，表示命令或请求，改为间接引语时，需要用“tell sb. (not) to do sth.”结构。原句中的“said to me”应改为“told me”，因为tell后面可以直接跟宾语。原句是否定祈使句“Don’t give up”，所以在间接引语中要用not to give up。句子描述的是过去发生的事情，应用一般过去时told。故填 told；not；to；give。
35．how to play
【解析】句意：我的爸爸教我如何弹吉他。原句为复合句，包含“how I could play”这一宾语从句。改为简单句时，可用“疑问词+不定式”结构，即填“how to play”，在句中作宾语。
36．was walking when
【解析】句意：他正走路回家，突然天开始下雪了。用when连接两个句子时，表示一个动作（下雪）发生在另一个动作（步行回家）进行的过程中，主句用过去进行时（was walking）表示背景动作，从句用一般过去时（began）表示突然发生的动作。合并为He was walking home when it began to snow.，故填was；walking；when。
37．Were cleaning
【解析】句意：昨天那个时候他们正在打扫教室。原句为过去进行时，结构为“were/was+doing”。改为一般疑问句时，将助动词were提到主语they之前，句首首字母大写，动词cleaning保持现在分词形式不变，其余部分照抄。
38．didn’t wait
【解析】句意：他们一直等到早上六点才等到日出。原句是一般过去时，改为否定句时，要在动词前加助动词didn’t，后面的动词用原形，故填didn’t；wait。
39．so that
【解析】句意：这座小山很陡，我们很难爬上去。句中“so…that…”意为“如此……以至于……”，用来连接表示原因和结果的句子，“so”后接形容词或副词，“that”后接结果状语从句，故填so；that。
40．until
【解析】句意：我直到写完日记才上床睡觉。原句“I didn’t go to bed. I finished my diary.”表达的是“写完日记才睡觉”的含义，可用固定结构not…until…(直到……才……)合并为一句，故填until。
41．so that
【解析】句意：她每天早起，为了赶上第一班公交车。原句用“in order to (为了)”表目的，后接动词原形，题目需用两个词引导后面的完整句子，so that意为“为了、以便”，后接完整句子。
42．wasn’t singing
【解析】句意：她当时在浴室唱歌。原句是过去进行时“was/were+现在分词”结构，改为否定句时，需在be动词was后加not，可缩写为wasn’t，后面的现在分词singing保持不变。应填wasn’t singing。
43．was walking
【解析】句意：他昨天走路去学校。句子为一般过去时，需要用at this time yesterday改写，表示“在昨天那个时候”，是过去进行时的标志词，所以改写后的句子要用过去进行时was/were doing的结构。主语he是第三人称，系动词用was。原句中谓语动词是walk，故填was walking。
44．hasn’t finished yet
【解析】句意：我的姐姐已经完成了作业。原句“My elder sister has already finished her homework.”使用了现在完成时。在将其改为否定句时，需在助动词has后加not，构成“hasn’t/has not+过去分词”结构。同时，原句中的标志词already常用于肯定句，在否定句中需改为yet并置于句末。
45．While my father was sleeping, my mother was reading a book/My father was sleeping while my mother was reading a book.
【解析】句意：我的爸爸在睡觉，我的妈妈在读书。原句时态为过去进行时，合并后的句子也应用过去进行时，可使用“while+从句，主句”或者“主句+while+从句”，故填While my father was sleeping, my mother was reading a book；My father was sleeping while my mother was reading a book。
46．wasn’t watching/was not watching
【解析】句意：上周六晚上8点的时候，我正在看电影。本句为过去进行时，改为否定句时，直接在be动词后加not，现在分词保持不变。was的否定形式为was not，缩写为wasn’t。
47．Were you eating
【解析】句意：我们正在吃晚饭，突然灯灭了。原句是过去进行时，变疑问句时，把were提到句首，首字母大写，把第一人称主语we改为第二人称you，其余不变。
48．not to
【解析】句意：我的父母建议我保持均衡的饮食。advise这类接不定式作宾语补足语的动词，变否定时，否定词not放在不定式符号to的前面，构成“advise sb. not to do sth.”的结构，故填not；to。
49．not to
【解析】句意：他努力工作，不为了提升自己的技能。原句为一般现在时，句中不定式结构to improve表示目的。改为否定句时，在不定式符号to前加not，构成not to improve，用来否定目的，因此填not和to。
50．Was the dog barking
【解析】句意：那条狗半夜正在大声吠叫。过去进行时的结构是“was/were+现在分词”，改一般疑问句把was/were提到句首句末变为问号，其余单词顺序不变。
51．shared their
【解析】句意：他们经常互相分享阅读经验。改为过去时，将谓语动词“share”改为过去式“shared”；第二空可填“their”，指代主语“they”彼此的阅读经验，使表意更完整。
52．isn’t/is anything/nothing
【解析】句意：有一些有趣的事情可以做来放松。there be句型，改为否定句时，be动词is后加not，缩写为isn’t；同时，肯定句中的something在否定句中要变为anything。nothing相当于not anything，is nothing也符合语境。
53．Should take
【解析】句意：我们读书时应该做读书笔记。原句含情态动词should，变一般疑问句直接把should提到句首，后面动词用原形take即可。句首字母大写，故填Should；take。
54．didn’t borrow
【解析】句意：她昨天从图书馆借了一本书。句子是一般过去时的肯定句，谓语动词是实义动词，改为否定句要借助助动词did，didn’t放在实义动词前，实义动词用原形，borrowed的原形是borrow。
55．shouldn’t eat
【解析】句意：你应该吃太多甜食。句中含有情态动词“should”，变为否定句时，直接在情态动词后加not，缩写为shouldn’t，后接动词原形eat。
56．when was
【解析】句意：我妈妈做饭的时候，我爸爸在看电视。原句由“While”引导时间状语从句，表示两个长动作在过去同时进行。改写为“when”引导的从句时，虽然“when”常引导短暂性动作，但它也可以引导持续性动作或状态，此时可与“while”互换。原句中“my mother was cooking”是过去进行时，改写后从句时态保持不变，主语“my mother”是单数，所以be动词用“was”。
57．Should go
【解析】句意：迈克应该立刻去医院。句中含有情态动词“should”，变为一般疑问句时，需将其提至句首，首字母大写，构成疑问语序，后接动词原形go。
58．Were reading
【解析】句意：当暴雨来临时，我正在看书。句意为“当暴雨来临时，我正在看书”。原句是过去进行时，改为一般疑问句时，需要将be动词提到句首。原句主语是“I”，疑问句中通常转换为“you”，对应的be动词是“were”，句首首字母大写，后面的动词形式保持不变。故填Were；reading。
59．went home when
【解析】句意：雨停了。我们回家了。原句两个动作都发生在过去，改为when引导的时间状语从句时，主句和从句都用一般过去时。主句“我们回家”为“We went home”，从句由“when”引导，表示“当……时候”。
60．Did they keep a record of disaster safety skills they learned yesterday
【解析】句意：他们记录了昨天学到的灾害安全技能。原句的谓语动词是kept，为一般过去时，所以变成疑问句需用助动词do的过去式did帮助提问。Did放在句首，原句谓语动词kept变回原形keep，其他按原文抄写，句尾用问号。
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