资源简介 专题04 单项选择之时态和语态(第01期)考点1 时态1. (2024·安徽·统考中考真题)—Excuse me, may I use your dictionary I ________ mine behind.—Sure. Here you are.A. leave B. have left C. will leave D. was leaving2. (2024·福建·统考中考真题)When I saw Xiao Wang yesterday, he ________ an old man cross the road.A. helps B. was helping C. will help3. (2024·福建·统考中考真题)The photos are beautiful. I wonder where they ________.A. will be taken B. are taking C. were taken4. (2024·甘肃白银·中考真题)Tom ________ the dog at the moment.A. is walking B. walks C. has walked D. walked5. (2024·甘肃白银·中考真题)—Oh, no! Your brother left his umbrella at home. There ________ heavy rain this afternoon.—Don’t worry, Mom. I’ll bring it to him.A. was B. has been C. are D. will be6. (2024·甘肃白银·中考真题)Linda prefers musicians who ________ different kinds of music.A. play B. plays C. was playing D. is playing7. (2024·甘肃省临夏州·中考真题)Mr. Green ________ China for five years.A. has been to B. has gone to C. has been in D. has come to8. (2024·广西·统考中考真题)Listen! The birds ________ in the tree now.A. sing B. sang C. are singing9. (2024·河北·统考中考真题)Jenny is an early bird. She ________ at 6:00 in the morning.A. gets up B. got up C. will get up D. has got up10. (2024·河北·统考中考真题)I’m expecting a friend. I’m afraid I ________ later.A. order B. ordered C. was ordering D. will order11. (2024·河北·统考中考真题)Alex ________ tea culture since he came to China in 2010.A. studies B. studied C. has studied D. was studying12. (2024·黑龙江龙东地区·中考真题)While we ________ an English song, some visitors came into our classroom.A. were singing B. sang C. are singing13. (2024·黑龙江龙东地区·中考真题)—Lucy, where is Mr. Wang —Hе ________ Beijing to attend a meeting.A. has gone to B. has been to C. has been in14. (2024·黑龙江绥化·中考真题)He ________ much healthier if he ________ enough exercise in his free time.A. is; take B. will be; takes C. will be; take15. (2024·黑龙江绥化·中考真题)Hurry up! The movie ________ for ten minutes.A. has begun B. began C. has been on16. (2024·江苏省连云港市·中考真题)As a Chinese traditional martial art (武术), Taijiquan _________ to more than 150 countries all over the world so far.A. spreads B. is spreading C. will spread D. has spread17. (2024·江苏省扬州市·中考真题)Look! My sister ________ the table. Let’s give her a hand.A. set B. sets C. is setting D. was setting18.(2024·江苏省扬州市·中考真题) As we all know, the Yangtze River ________ as a “mother river” of the Chinese nation.A. knows B. knew C. is known D. was known19. (2024·江西省·中考真题)—Where is Helen —I’m not sure. Maybe she ________ her baseball lesson.A. had B. was having C. is having D. will have20. (2024·江西省·中考真题)—Oh hi, I’m looking for a pair of shoes.—Well, you ________ to the right place. We have a lot of shoes in our shop.A came B. were coming C. will come D. have come21. (2024·四川成都·统考中考真题)The astronauts of the Shenzhou-18 ________ in the Tiangong space station for about two months since they were sent into space in April this year.A. will work B. have worked C. is working22. (2024·四川达州市·中考真题)—May I speak to Wang Hong —Sorry, she is not at home. She ________ to Beijing.A. has been B. has to go C. has gone23. (2024·四川乐山·中考真题)—There has been less and less pollution in Leshan these years.—The government has made a great effort on it. I’m sure this problem ______ one day in the future.A. was solved B. solves C. will be solved24.(2024·四川凉山·中考真题) —Have you ever ______ the Great Wall —Yes, I have. I went there on our last school trip.A. been to B. gone to C. been in25. (2024·四川乐山·中考真题)—Hello, may I speak to Jenny, please —Wait a minute, please. She ________ in the kitchen now.A. cooked B. is cooking C. will cook26. (2024·四川泸州市·中考真题)—Hi, Ethan. I called you at 8:00 last night, but you didn’t answer.—Sorry, I ______ the dishes.A. wash B. washedC. am washing D. was washing27.(2024·四川遂宁市·中考真题) —Tim, what were you doing when I called you —I ________ bicycle with my sister.A. was cutting up B. am making up C. am picking up D. was fixing up28. (2024·天津·中考真题)— Jane and I _________ a picnic this Sunday. Would you like to come with us — Sure. See you then.A. had B. have had C. were having D. are going to have29. (2024·云南省·中考真题)—Helen, I didn’t see you in the classroom at five yesterday afternoon.—Oh, I ________ singing for the graduation ceremony at that time.A. will practice B. have practiced C. am practicing D. was practicing考点2 动词的语态1. (2024·安徽·统考中考真题)The 2024 Paris Olympic Games ________ this July. Don’t miss it.A. holds B. will hold C. is held D. will be held2.(2024·甘肃省临夏州·中考真题) Many trees ________ every year to protect the environment.A. plant B. are planted C. were planted D. have planted3. (2024·河北·统考中考真题)Emma got excited when her writing ________ as a model in class.A. reads B. read C. is read D. was read4. (2024·黑龙江绥化·中考真题)The tea ________ in China ________ to many different countries and places each year.A. is made; sent B. made; sent C. made; is sent5. (2024·江苏省连云港市·中考真题)Robot dogs _________ as volunteers for the first time during the 2023 Asian Games.A. use B. used C. are used D. were used6.(2024·江西省·中考真题) Ted preferred pop music when he ________ about his favorite music in the interview.A. was asked B. asked C. is asked D. asks7. (2024·四川成都·统考中考真题)What exciting news! The 2025 World Games ________ in Chengdu.A. was held B. is held C. will be held8. (2024·四川达州市·中考真题)—Bob, your room is so dirty. It must ________ every day.—OK. Mom, I’ll do it right now.A. clean B. be cleaned C. is cleaned9. (2024·四川凉山·中考真题)—Do you know the Spring Festival became a UN Floating Holiday in 2024 —Yes. The Spring Festival ______ widely in the world nowadays.A. is celebrated B. was celebrated C. will be celebrated10. (2024·四川泸州市·中考真题)—Tom, the high-speed railway (高铁) connecting Luzhou with Chongqing ______ this year hopefully.— Amazing! I’m looking forward to it!A. completes B. is completedC. was completed D. will be completed11. (2024·四川自贡市·中考真题)—The 33rd Summer Olympic Games is coming.—Yes. It ________ in Paris from July 26th to August 11th this year.A. was held B. is held C. will be held12. (2024·天津·中考真题)Lao She wrote many plays and he _________ “the People’s Artist”.A. names B. named C. was named D. has named13. (2024·云南省·中考真题)Chinese ________ by more and more people in the world these days.A. speak B. spoke C. is spoken D. was spoken21世纪教育网(www.21cnjy.com)专题04 单项选择之时态和语态(第01期)考点1 时态1. (2024·安徽·统考中考真题)—Excuse me, may I use your dictionary I ________ mine behind.—Sure. Here you are.A. leave B. have left C. will leave D. was leaving【答案】B【解析】句意:——对不起,我可以用一下你的字典吗?我把我的落下了。——当然。给你。考查动词时态。分析句子可知,字典落下了,所以借用对方的,强调过去的动作对现在造成了影响,应为现在完成时,结构是have/has done。故选B。2. (2024·福建·统考中考真题)When I saw Xiao Wang yesterday, he ________ an old man cross the road.A. helps B. was helping C. will help【答案】B【解析】句意:昨天我看见小王时,他正帮助一位老人过马路。考查过去进行时。根据“When I saw Xiao Wang yesterday, he ... an old man cross the road.”可知,强调在过去某个时间点,正在发生的动作,用过去进行时。故选B。3. (2024·福建·统考中考真题)The photos are beautiful. I wonder where they ________.A. will be taken B. are taking C. were taken【答案】C【解析】句意:照片很漂亮。我想知道它们被带到哪里去了。考查一般过去时的被动语态。本句主语是动作的承受者,动作发生在过去,所以用一般过去时的被动语态。故选C。4. (2024·甘肃白银·中考真题)Tom ________ the dog at the moment.A. is walking B. walks C. has walked D. walked【答案】A【解析】句意:汤姆此刻正在遛狗。考查现在进行时。根据“at the moment”可知,强调动作正在发生,用现在进行时。故选A。5. (2024·甘肃白银·中考真题)—Oh, no! Your brother left his umbrella at home. There ________ heavy rain this afternoon.—Don’t worry, Mom. I’ll bring it to him.A. was B. has been C. are D. will be【答案】D【解析】句意:——哦,不!你哥哥把伞忘在家里了。今天下午会有大雨。——别担心,妈妈。我会拿给他的。考查动词时态。根据“this afternoon”可知是一般将来时,故选D。6. (2024·甘肃白银·中考真题)Linda prefers musicians who ________ different kinds of music.A. play B. plays C. was playing D. is playing【答案】A【解析】句意:琳达更喜欢能演奏不同种类音乐的音乐家。考查动词时态。根据“Linda prefers musicians who…”可知,时态为一般现在时;关系代词who代替先行词musicians,在从句中作主语,谓语动词应使用动词原形。故选A。7. (2024·甘肃省临夏州·中考真题)Mr. Green ________ China for five years.A. has been to B. has gone to C. has been in D. has come to【答案】C【解析】句意:格林先生在中国已经五年了。考查现在完成时。has been to去过,是短暂性动词;has gone to去了,是短暂性动词;has been in在,是延续性动词;has come to已经来到,是短暂性动词。此处与“for five years”连用,故用延续性动词或者表示延续性状态的短语,故选C。8. (2024·广西·统考中考真题)Listen! The birds ________ in the tree now.A. sing B. sang C. are singing【答案】C【解析】句意:听!鸟儿正在树上唱歌。考查动词时态。根据“Listen!”可知,时态是现在进行时,结构为:am/is/are doing。故选C。9. (2024·河北·统考中考真题)Jenny is an early bird. She ________ at 6:00 in the morning.A. gets up B. got up C. will get up D. has got up【答案】A【解析】句意:珍妮是个早起人。她早上6点起床。考查时态。根据“She ... at 6:00 in the morning.”可知,强调经常性动作,用一般现在时,故选A。10. (2024·河北·统考中考真题)I’m expecting a friend. I’m afraid I ________ later.A. order B. ordered C. was ordering D. will order【答案】D【解析】句意:我在等一个朋友。恐怕我要晚点点餐。考查时态。根据“I’m expecting a friend. I’m afraid I ... later.”可知,在等朋友,所以要晚点点餐,用一般将来时will do,故选D。11. (2024·河北·统考中考真题)Alex ________ tea culture since he came to China in 2010.A. studies B. studied C. has studied D. was studying【答案】C【解析】句意:Alex自从2010年来到中国开始研究茶文化。考查现在完成时。根据“Alex ... tea culture since he came to China in 2010.”可知,强调时间的延续,是“现在完成时+since+一般过去时”结构,此处用现在完成时have/has done,故选C。12. (2024·黑龙江龙东地区·中考真题)While we ________ an English song, some visitors came into our classroom.A. were singing B. sang C. are singing【答案】A【解析】句意:当我们唱英语歌的时候,一些参观者走进了我们的教室。考查动词时态。分析句子可知,此处是含while引导的状语从句的复合句。参观者进入教室时,我们正在唱歌,主句用一般过去时,从句应用过去进行时“was/were+动词现在分词”。故选A。13. (2024·黑龙江龙东地区·中考真题)—Lucy, where is Mr. Wang —Hе ________ Beijing to attend a meeting.A. has gone to B. has been to C. has been in【答案】A【解析】句意:——露西,王先生在哪里?——他去北京参加会议了。考查现在完成时。has gone to去了某地,还没回来;has been to去了某地,已经回来;has been in待在某地。分析句子可知,对话发生时王先生不在,可知他去北京还未回来,应用has gone to。故选A。14. (2024·黑龙江绥化·中考真题)He ________ much healthier if he ________ enough exercise in his free time.A. is; take B. will be; takes C. will be; take【答案】B【解析】句意:如果他空闲时间做足够的锻炼,他会更健康。考查时态。此句是if引导的条件状语从句,遵循“主将从现”原则,主句用一般将来时,从句用一般现在时。从句主语是he,动词用三单。故选B。15. (2024·黑龙江绥化·中考真题)Hurry up! The movie ________ for ten minutes.A. has begun B. began C. has been on【答案】C【解析】句意:快点!电影已经开始十分钟了。考查时态。根据“for ten minutes”可知电影已经开始十分钟了,用现在完成时,且动词要用延续性动词。begin是非延续性动词,延续性动词是be on。故选C。16. (2024·江苏省连云港市·中考真题)As a Chinese traditional martial art (武术), Taijiquan _________ to more than 150 countries all over the world so far.A. spreads B. is spreading C. will spread D. has spread【答案】D【解析】句意:太极拳作为中国传统武术,迄今已传播到世界150多个国家。考查动词时态。根据“so far”可知,时态是现在完成时,结构是have/has done。故选D。17. (2024·江苏省扬州市·中考真题)Look! My sister ________ the table. Let’s give her a hand.A. set B. sets C. is setting D. was setting【答案】C【解析】句意:看!我姐姐正在摆桌子。让我们帮她一把。考查动词时态。根据“Look”可知,姐姐正在摆桌子,动作正在发生,应为现在进行时。故选C。18.(2024·江苏省扬州市·中考真题) As we all know, the Yangtze River ________ as a “mother river” of the Chinese nation.A. knows B. knew C. is known D. was known【答案】C【解析】句意:众所周知,长江被誉为中华民族的“母亲河”。考查动词时态。长江是中华民族的“母亲河”,本句阐述事实,应为一般现在时。be known as“被称为,被认为是”,固定短语。故选C。19. (2024·江西省·中考真题)—Where is Helen —I’m not sure. Maybe she ________ her baseball lesson.A. had B. was having C. is having D. will have【答案】C【解析】句意:——海伦在哪里?——我不确定。也许她正在上棒球课。考查现在进行时。根据“Where is Helen ”和“Maybe she ... her baseball lesson.”可知,强调动作正在发生,用现在进行时,故选C。20. (2024·江西省·中考真题)—Oh hi, I’m looking for a pair of shoes.—Well, you ________ to the right place. We have a lot of shoes in our shop.A came B. were coming C. will come D. have come【答案】D【解析】句意:——哦,嗨,我想买双鞋。——嗯,你来对地方了。我们店里有很多鞋子。考查现在完成时。根据“Well, you ... to the right place. We have a lot of shoes in our shop.”可知,强调来对地方对现在有影响——能买到想要的鞋子,所以用现在完成时,结构是have/has done。故选D。21. (2024·四川成都·统考中考真题)The astronauts of the Shenzhou-18 ________ in the Tiangong space station for about two months since they were sent into space in April this year.A. will work B. have worked C. is working【答案】B【解析】句意:神舟十八号航天员自今年4月发射升空以来,已在天宫空间站工作了约两个月。考查动词时态。分析句子可知,此处是含since引导的时间状语从句的复合句,从句时态用一般过去时,主句时态应用现在完成时,结构是have/has done。故选B。22. (2024·四川达州市·中考真题)—May I speak to Wang Hong —Sorry, she is not at home. She ________ to Beijing.A. has been B. has to go C. has gone【答案】C【解析】句意:——我可以和王红通话吗?——对不起,她不在家。她去北京了。考查现在完成时。has been to去过某地,已经回来;has to go to不得不去;has gone to去了某地,还未回来。根据“she is not at home”可知,王红不在家,即她去了北京,还未回来,应用has gone to。故选C。23. (2024·四川乐山·中考真题)—There has been less and less pollution in Leshan these years.—The government has made a great effort on it. I’m sure this problem ______ one day in the future.A. was solved B. solves C. will be solved【答案】C【解析】句意:——这些年来,乐山的污染越来越少。——政府在这方面做了很大的努力。我相信这个问题未来总有一天会得到解决。考查动词时态。此处主语“this problem”与“解决”之间应是被动关系,且结合“in the future”可知是指未来,因此此处需用一般将来时的被动语态,形式为will be done。故选C。24.(2024·四川凉山·中考真题) —Have you ever ______ the Great Wall —Yes, I have. I went there on our last school trip.A. been to B. gone to C. been in【答案】A【解析】句意:——你去过长城吗?——是的,我去过。我上次学校旅行时去了那里。考查现在完成时。have been to去过某地,已经回来;have gone to去了某地,还未回来;have been in待在某地。根据“I went there on our last school trip.”可知,“我”去过长城,且已经回来了,应用have been to。故选A。25. (2024·四川乐山·中考真题)—Hello, may I speak to Jenny, please —Wait a minute, please. She ________ in the kitchen now.A. cooked B. is cooking C. will cook【答案】B【解析】句意:——你好,我可以和詹妮说话吗?——请等一下。她现在正在厨房做饭。考查时态。根据“Wait a minute, please. She ... in the kitchen now.”可知,强调动作正在发生,用现在进行时,故选B。26. (2024·四川泸州市·中考真题)—Hi, Ethan. I called you at 8:00 last night, but you didn’t answer.—Sorry, I ______ the dishes.A. wash B. washedC. am washing D. was washing【答案】D【解析】句意:——嗨,伊森。我昨晚8点给你打电话,但你没有接。——抱歉,我当时正在洗碗。考查动词时态。根据“at 8:00 last night”可知,此处指昨晚8点打电话时伊森正在洗碗,过去某一时间点正在做某事,应用过去进行时。故选D。27.(2024·四川遂宁市·中考真题) —Tim, what were you doing when I called you —I ________ bicycle with my sister.A. was cutting up B. am making up C. am picking up D. was fixing up【答案】D【解析】句意:——蒂姆,我打电话给你的时候你在做什么?——我正在和姐姐修理自行车。考查动词时态及动词短语。cut up切碎;make up编造;pick up捡起;fix up修理。根据“what were you doing when I called you ”可知,此处指过去某一时刻正在做的事情,应为过去进行时,结构是was/were doing。结合“bicycle”可知,此处指修理自行车。故选D。28. (2024·天津·中考真题)— Jane and I _________ a picnic this Sunday. Would you like to come with us — Sure. See you then.A. had B. have had C. were having D. are going to have【答案】D【解析】句意:——这个星期天,简和我打算去野餐。你愿意和我们一起去吗?——当然。到时见。考查动词时态。根据“this Sunday”可知,这个星期天要去野餐,事情发生在将来,时态是一般将来时,结构是will do或be doing to do。故选D。29. (2024·云南省·中考真题)—Helen, I didn’t see you in the classroom at five yesterday afternoon.—Oh, I ________ singing for the graduation ceremony at that time.A. will practice B. have practiced C. am practicing D. was practicing【答案】D【解析】句意:——海伦,昨天下午五点我没看见你在教室里。——噢,那时我正在为毕业典礼练习唱歌。考查过去进行时。根据“at five yesterday afternoon”和“at that time”可知,强调在过去的某个时间点,正在发生的动作,用过去进行时,故选D。考点2 动词的语态1. (2024·安徽·统考中考真题)The 2024 Paris Olympic Games ________ this July. Don’t miss it.A. holds B. will hold C. is held D. will be held【答案】D【解析】句意:2024年巴黎奥运会将于今年7月举行。不要错过。考查被动语态。主语Olympic Games和动词hold“举行”之间是被动关系,结合“this July.”和“The 2024”可知,应用一般将来时的被动语态will be done,故选D。2.(2024·甘肃省临夏州·中考真题) Many trees ________ every year to protect the environment.A. plant B. are planted C. were planted D. have planted【答案】B【解析】句意:为了保护环境,每年都要种很多树。考查被动语态。分析题干可知,主语trees和动词plant“种植”之间是被动关系,结合“every year”可知,应用一般现在时的被动语态。故选B。3. (2024·河北·统考中考真题)Emma got excited when her writing ________ as a model in class.A. reads B. read C. is read D. was read【答案】D【解析】句意:当艾玛的作品在课堂上被当作模范朗读时,她很兴奋。考查一般过去时的被动语态。本句主语是动作的承受者,结合“Emma got excited”可知,动作发生在过去,所以用一般过去时的被动语态were/was done。故选D。4. (2024·黑龙江绥化·中考真题)The tea ________ in China ________ to many different countries and places each year.A. is made; sent B. made; sent C. made; is sent【答案】C【解析】句意:中国产的茶叶每年运往许多不同的国家和地方。考查被动语态和过去分词用法。tea与send之间是动宾关系,用被动语态,is sent。此处用make的过去分词made作后置定语,修饰tea。故选C。5. (2024·江苏省连云港市·中考真题)Robot dogs _________ as volunteers for the first time during the 2023 Asian Games.A. use B. used C. are used D. were used【答案】D【解析】句意:2023年亚运会期间,机器狗首次被用作志愿者。考查时态和语态。主语Robot dogs和谓语use之间是被动关系,根据“during the 2023 Asian Games.”可知此处用一般过去时的被动语态was/were done。故选D。6.(2024·江西省·中考真题) Ted preferred pop music when he ________ about his favorite music in the interview.A. was asked B. asked C. is asked D. asks【答案】A【解析】句意:在采访中被问及最喜欢的音乐时,泰德更喜欢流行音乐。考查一般过去时的被动语态。本句主语是动作的承受者,动作发生在过去,所以用一般过去时的被动语态。故选A。7. (2024·四川成都·统考中考真题)What exciting news! The 2025 World Games ________ in Chengdu.A. was held B. is held C. will be held【答案】C【解析】句意:多么令人兴奋的消息!2025年世界运动会将在成都举行。考查被动语态。根据“The 2025 World Games”可知,2025年世界运动会的举行发生在将来,此处应为一般将来时的被动语态,结构是will be done。故选C。8. (2024·四川达州市·中考真题)—Bob, your room is so dirty. It must ________ every day.—OK. Mom, I’ll do it right now.A. clean B. be cleaned C. is cleaned【答案】B【解析】句意:——鲍勃,你的房间太脏了。必须每天清扫一下。——好的。妈妈,我现在就去。考查含情态动词的被动语态。本句主语是动作的承受者,所以用被动语态be done,must后用动词原形,故选B。9. (2024·四川凉山·中考真题)—Do you know the Spring Festival became a UN Floating Holiday in 2024 —Yes. The Spring Festival ______ widely in the world nowadays.A. is celebrated B. was celebrated C. will be celebrated【答案】A【解析】句意:——你知道春节在2024年成为联合国的浮动假日吗?——是的。如今,全世界都在广泛庆祝春节。考查一般现在时被动语态。根据“nowadays”可知,此处用一般现在时,主语与动词celebrate之间是被动关系,所以用一般现在时被动语态,故选A。10. (2024·四川泸州市·中考真题)—Tom, the high-speed railway (高铁) connecting Luzhou with Chongqing ______ this year hopefully.— Amazing! I’m looking forward to it!A. completes B. is completedC. was completed D. will be completed【答案】D【解析】句意:——汤姆,连接泸州和重庆的高速铁路有望在今年建成。——太棒了!我很期待!考查动词时态及被动语态。主语the high-speed railway与动词complete之间是逻辑上的动宾关系,高铁被建成,应为被动语态。根据“this year hopefully”及“I’m looking forward to it!”可知,高铁建成发生在将来,故此处是一般将来时的被动语态。故选D。11. (2024·四川自贡市·中考真题)—The 33rd Summer Olympic Games is coming.—Yes. It ________ in Paris from July 26th to August 11th this year.A. was held B. is held C. will be held【答案】C【解析】句意:——第33届夏季奥运会即将到来。——是的。它将于今年7月26日至8月11日在巴黎举行。考查一般将来时的被动语态。主语与“hold”是被动关系,结合“from July 26th to August 11th this year”可知,此处用一般将来时的被动语态。故选C。12. (2024·天津·中考真题)Lao She wrote many plays and he _________ “the People’s Artist”.A. names B. named C. was named D. has named【答案】C【解析】句意:老舍写了很多戏剧,被评为“人民艺术家”。考查被动语态。分析句子可知,此处指老舍被称为“人民艺术家”,主语he和谓语name之间是被动关系,应为被动语态,结构是be done。故选C。13. (2024·云南省·中考真题)Chinese ________ by more and more people in the world these days.A. speak B. spoke C. is spoken D. was spoken【答案】C【解析】句意:现在世界上讲汉语的人越来越多了。考查一般现在时被动语态。句中的主语Chinese和speak是动宾关系,故用被动。根据“these days”可知,时态是一般现在时,一般现在时被动语态结构为am/is/are done,主语为Chinese,be动词用is。故选C。21世纪教育网(www.21cnjy.com) 展开更多...... 收起↑ 资源列表 备战2025年中考英语真题分类汇编(全国通用)专题04单项选择之时态和语态(第01期)(学生版).docx 备战2025年中考英语真题分类汇编(全国通用)专题04单项选择之时态和语态(第01期)(教师版).docx