高考英语强调句型课件.
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高考英语《强调句》复习课件
A1．It is often midnight _______ he comes back
home after finishing a whole day’s work. A. when B. before C. that D. since
D2. It was nearly a month later ____ I received the
5. 其他部分中的主谓一致问题。 若强调部分是句子的主语，强调部
分是单数，谓语动词用单数形式；若 强调部分是复数，则谓语动词用复数 形式。如：
（6）It is Mary who often helps me with my English.
（7）It is I that am against you.
feel bad. A. until B. that C. when D. while
强调句 与定语从句 C1.It was not what she did but the way ______
she did it_____ made her teacher angry. A. how, that B. in which, which C. /, that D. what, which D2. Was it in the room _____ Mr Johnson lived ______ the exhibition was held ? A. that, that B. where, where C. that, where D. where, that A3. It is the education ______ he received when studying abroad _____ has made him such an excellent manager. A. that, that B. which, which C. that, where D. where, that
home after finishing a whole day’s work. A. when B. before C. that D. since
D2. It was nearly a month later ____ I received the
5. 其他部分中的主谓一致问题。 若强调部分是句子的主语，强调部
分是单数，谓语动词用单数形式；若 强调部分是复数，则谓语动词用复数 形式。如：
（6）It is Mary who often helps me with my English.
（7）It is I that am against you.
feel bad. A. until B. that C. when D. while
强调句 与定语从句 C1.It was not what she did but the way ______
she did it_____ made her teacher angry. A. how, that B. in which, which C. /, that D. what, which D2. Was it in the room _____ Mr Johnson lived ______ the exhibition was held ? A. that, that B. where, where C. that, where D. where, that A3. It is the education ______ he received when studying abroad _____ has made him such an excellent manager. A. that, that B. which, which C. that, where D. where, that
英语强调句(经典必收藏)PPT课件
被强调部分为P主ay语时at，te“n被ti强on调！部分”用主格；
被强调部分为宾语时，“. 被强调部分”用宾格1。2
u被强调成分是作主语的代词，用主格，是 作宾语的代词，用宾格。
He helped me yesterday It was he that helped me yesterday. It was me that he helped yesterday.
come to school on foot?
vA. it; that; whose
B. it; that it takes;
whose
vC. it for; that it takes; whose D. it; when; that;
v[简析]：本题结构复杂，是定语从句、强调句型的一般问句 形式和句式It takes sb some time to do sth.的糅合。我们也分 几步来看这个句子：
Is／Was it+被强调成分+who／that（引导的陈
述句）... ？
（1）Did you meet your brother at the school
gate?
Was it your brother that you met at the school
gate?(强调宾语)
（2）Does Tom walk to school every day ?
v第一步：基本句式It takes th. e boy three hours to come to 21 school on foot.
第二步：以the boy为先行词，后面附上定语从句，则变为：
It takes the boy whose family is poor three hours to come to school on foot.
被强调部分为宾语时，“. 被强调部分”用宾格1。2
u被强调成分是作主语的代词，用主格，是 作宾语的代词，用宾格。
He helped me yesterday It was he that helped me yesterday. It was me that he helped yesterday.
come to school on foot?
vA. it; that; whose
B. it; that it takes;
whose
vC. it for; that it takes; whose D. it; when; that;
v[简析]：本题结构复杂，是定语从句、强调句型的一般问句 形式和句式It takes sb some time to do sth.的糅合。我们也分 几步来看这个句子：
Is／Was it+被强调成分+who／that（引导的陈
述句）... ？
（1）Did you meet your brother at the school
gate?
Was it your brother that you met at the school
gate?(强调宾语)
（2）Does Tom walk to school every day ?
v第一步：基本句式It takes th. e boy three hours to come to 21 school on foot.
第二步：以the boy为先行词，后面附上定语从句，则变为：
It takes the boy whose family is poor three hours to come to school on foot.
专题10+强调句型-高考英语语法知识强化精品课件
trary, I think it is Truman, rather than you, that __i_s_____(be)
to blame.
2. John's success has nothing to do with good luck. It is years of hard work
【即时训练】 7.---__H_o__w____was it that he managed to get the information? ---Oh, a friend of his helped him. 8. ---What was it __t_h_a_t____ made Daisy wild with joy? ---Her success in the A-level exam this year.
4. (2012重庆) It was 80 years before Christopher Columbus crossed the
Atlantic _t_h_a__t_ Zheng sailed to East Africa.
PART TWO
02
强调句型 一般疑问句式
【要点精讲】 1. 强调句型的一般疑问句需要把is/was提前。 2.其形式为“Is/ Was it-+被强调部分+that/who+其他?” 。 例1：Is it Professor Wang who teaches you English? 例2：Was it our being late that caused him to serve dinner an hour later than usual?
PART FOUR
04
强调句型含 not…until…句式
to blame.
2. John's success has nothing to do with good luck. It is years of hard work
【即时训练】 7.---__H_o__w____was it that he managed to get the information? ---Oh, a friend of his helped him. 8. ---What was it __t_h_a_t____ made Daisy wild with joy? ---Her success in the A-level exam this year.
4. (2012重庆) It was 80 years before Christopher Columbus crossed the
Atlantic _t_h_a__t_ Zheng sailed to East Africa.
PART TWO
02
强调句型 一般疑问句式
【要点精讲】 1. 强调句型的一般疑问句需要把is/was提前。 2.其形式为“Is/ Was it-+被强调部分+that/who+其他?” 。 例1：Is it Professor Wang who teaches you English? 例2：Was it our being late that caused him to serve dinner an hour later than usual?
PART FOUR
04
强调句型含 not…until…句式
高中英语强调句趣味讲解ppt
1 用助动词do / does / did+动词原形
翻译：动词前加上助动词do; 译成汉语时可以 使用的确;务必;确实;真的;一定等词突出强调语 气
改错 He do work hard
does 助动词随人称的数 时态变化
I do love you I did love you He does hate her
Does Tom walk to school every day
Where did you see her pen yesterday
区分强调句和定语从句
It was in the house _t_h_a_t_ he was born
It was the house _w_h_e_as _w_h_a_t he said __th_a_t_ disappointed me 2 It was in the factory _w_h_i_ch_/_th_a_t___ produced TV sets _t_h_a_t our friend was murdered 3 It was just in the room _w__h_e_rehe was born __th_a_t_ he died
总结强调句型： 1. 结构为：
It is was + 被强调成分+thatwho+其它 2 强调句可强调除谓语外的主语 宾语 状语等
3 被强调成分是人时可用who;其它都用that
4 强调句的be动词：is; was 5 被强调部分为主语时;被强调部分用主格；
被强调部分为宾语时;被强调部分用宾格；
the letter A It; careful B It; carefully C He; careful
高考英语语法专题---强调句课件
√
√
√
4.Was it during the Second War __he died? A. that B.while C. in which D. then
√
√ 6.It was not until 1956___ liberated. the town B. √A.that the town was D. did the town town C. was that was the
√
18. Was it in 1982 ____ you were in university_____ you got to know her? A. that; that B. which; that C. when; that D. that; when 19. Personally I think it is the sales manager, rather than the sales girl, ____ to blame. A. is B. that is C. are D. who are 20. In my opinion, all Mr. Tom ____ good to his students in his class at present. He is strict in their study. A. does does does B. does do do C. does does do D. did do does
注 意
3. 当被强调部分指人时，可以用that连接，也可用 who / whom连接；指物时，只用that 连接。
练习：It was Tom Who /whom/that I met last week. __________
高中英语语法强调句的用法优秀公开课课件
3、特殊疑问句的强调句型： 特殊疑问词+ is/ was + it + that+ 其它部分 e.g. Who was it that saved my son last year?
强调宾语
Doctor Li saved my son last year. 强调宾语 1. 陈述句： It was my son that/who was saved by doctor Li last year.
强调句型的判断
• 强调句型的判断 • 把“It is(was) …that/who”去掉，如果剩余 部分句子结构仍然完整，这个句子就是强调句； 如果句子不完整，则不是强调句。 • 如： • ①It is he who often helps me with my English. • • ②It was because of bad weather that the football match had to be put off.
注意：被强调的原因状语从句只能用because引导，
不能用as或since引导
Not until 强调句式
Not ~until
句型为：
It is/ was not until + 被强调部分 + that + 其它部分
【原句】他完成作业之后才睡觉 He didn’t go to sleep until he finished his work. Not until 置于句首 Not until he finished his work, did he go to sleep. 强调句+ not until It was not until he finished his work that he went to sleep.
《高考英语强调句型》课件
Common emphasis sentence structures include: emphasizing the subject, emphasizing the object, emphasizing the predicate, etc.
Emphasize the role of presence patterns
Emphasizing sentence patterns plays an important role in English, as they can make sentences more vivid, powerful, and enhance expression.
In the college entrance examination of English, emphasizing sentence patterns is also one of the important test points. Mastering emphasizing sentence patterns can improve the language application ability and reading comprehension ability of candidates.
Look for words or phrases that are in bold, italicized, or underlined These are often used to highlight important information or emphasize certain parts of the presence
Emphasize content sentence structure
Detailed description
Emphasize the role of presence patterns
Emphasizing sentence patterns plays an important role in English, as they can make sentences more vivid, powerful, and enhance expression.
In the college entrance examination of English, emphasizing sentence patterns is also one of the important test points. Mastering emphasizing sentence patterns can improve the language application ability and reading comprehension ability of candidates.
Look for words or phrases that are in bold, italicized, or underlined These are often used to highlight important information or emphasize certain parts of the presence
Emphasize content sentence structure
Detailed description
强调句型PPT课件
Conclusion 5: 把“It is/was --- that”去掉，如果
剩余部分句子结构仍然完整，那么这个句子就是 强调句；如果句子不完整，则不是强调句。
单句语法填空
1. It was midnight _w_h__en__ he came back. 2. It was at midnight _t_h_a_t__ he came back. 3. It is in the classroom _t_h_a_t__ we will have the test. 4. It is the classroom _w_h__er_e_ we will have the test.
注意强调句与其 他从句的结合
D. that; what
歌词翻译
Number 4
一九七九年那是一个春天，有一位老人在中国 的南海边画了一个圈。(South China Sea，强 调划线部分)
It was in the spring of 1979 that an old man drew a circle by the side of South China Sea.
强调主语
It is they that/who will have a meeting in the hall tomorrow.
强调宾语
It is a meeting that they will have in the hall tomorrow.
强调地点状语
It is in the hall that they will have a meeting tomorrow.
1. It was since the bus broke down on the way because
剩余部分句子结构仍然完整，那么这个句子就是 强调句；如果句子不完整，则不是强调句。
单句语法填空
1. It was midnight _w_h__en__ he came back. 2. It was at midnight _t_h_a_t__ he came back. 3. It is in the classroom _t_h_a_t__ we will have the test. 4. It is the classroom _w_h__er_e_ we will have the test.
注意强调句与其 他从句的结合
D. that; what
歌词翻译
Number 4
一九七九年那是一个春天，有一位老人在中国 的南海边画了一个圈。(South China Sea，强 调划线部分)
It was in the spring of 1979 that an old man drew a circle by the side of South China Sea.
强调主语
It is they that/who will have a meeting in the hall tomorrow.
强调宾语
It is a meeting that they will have in the hall tomorrow.
强调地点状语
It is in the hall that they will have a meeting tomorrow.
1. It was since the bus broke down on the way because
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[单选,A型题]可作片剂崩解剂的是（）A、交联聚乙烯吡咯烷酮B、预胶化淀粉C、甘露醇D、聚乙二醇E、聚乙烯吡咯烷酮 [单选]乙琥胺治疗癫痫疗效最好的类型是（）。A.小发作B.精神运动性发作C.局限性发作D.大发作E.间脑发作 [单选]目前最理想的永久性创面覆盖物是()A．自体皮肤B．猪皮C．表皮细胞膜片D．鸡皮E．同种异体皮 [填空题]炎热天气行车要注意防止发动机过热，一般水温表读数不超过（）为正常 [问答题,简答题]旅客王宾乘坐CA985航班头等舱有北京至旧金山，其在办理乘机手续柜台交运精密仪器意见30公斤，另外交运行李意见10公斤，请问，精密仪器可否作为免费行李接收？为什么？ [单选]以下哪种行为可以称为项目？（）A．开班会B．给新计算机安装操作系统及相关软件C．设计一种新型的自行车D．生产一批新型的自行车 [多选]先天性巨结肠的辅助检查包括A．钡灌肠B．直肠肛管测压C．直肠指诊D．直肠活检神经节细胞减少或缺如E．直肠肛管肌电图检查 [多选]桥梁拆除施工应根据拆除工程施工现场作业环境，制定相应的消防安全措施，施工现场应设置（）等设施和器材。A.消防车通道B.消火栓C.报警器D.应急救援车E.灭火器材 [问答题,简答题]五岳衡山位于哪一省？ [多选]货币的演变形式是（）。A.贵金属B.铸币C.纸币D.以信用工具为主的货币 [名词解释]物料容重 [单选,A2型题,A1/A2型题]下列哪种情况尿中胆素原族排泄量会减少（）。A.肝功能轻度损伤B.肠道阻塞C.溶血D.碱中毒E.胆道阻塞 [单选]关于肺功能检查应用范围下列哪项是错的()A．确定肺功能障碍的程度B．判定肺功能障碍的类型C．可以发现肺部较小的病变D．可用以判断某些药物的疗效E．可以区别心源性和肺源性呼吸困难 [单选]泵的扬程是指泵对单位重量液体所提供的（）。A、能量B、有效能量 [问答题,简答题]地基破坏模式有几种？发生整体剪切破坏时p-s曲线的特征如何？ [单选]企业（）已成为竞争的重要内容，自毁企业形象，无疑将失去顾客。A.员工和素质B.产品和售价C.管理和技术D.形象和信誉 [单选,A1型题]膜部尿道损伤，尿生殖膈没损伤时，尿外渗至（）A.会阴部B.阴囊部C.阴茎部D.膀胱前列腺周围E.下腹壁 [填空题]亮度对比是视场中（）与（）之比。 [单选]当签订合同后，当事人对合同的格式条款的理解发生争议时，以下做法不正确的是（）。A.应按通常的理解予以解释B.有两种以上解释的，应做出有利于提供格式条款的一方的解释C.有两种以上解释的，应做出不利于提供格式条款的一方的解释D.在格式条款与非格式条款不一致时，应采用 [填空题]确定粗集料压碎值试验试样质量时，按大致相同的数量将试样分（）装入金属量筒中，整平后，每层用金属棒在整个层面上均匀捣实（）次。 [单选]雇主无故克扣、拖欠工资，家政服务员可以到（）要求解决。A、劳动管理部门B、公安机关C、工商局D、税务局 [填空题]()是指地基稳定具有足够安全度的承载力，它相当于地基极限承载力除以一个安全系数k，且要验算地基变形不超过允许变形值。 [单选,A2型题,A1/A2型题]维持子宫在盆腔正中位置的韧带是（）A.圆韧带B.阔韧带C.主韧带D.宫骶韧带E.骶结节韧带 [填空题]世界上最早用于民用航空运输的飞行器是轻与空气的飞行器---（）。 [名词解释]Web服务器 [单选]窦性心动过缓很少见于下列哪种临床情况（）.A.正常健康人B.运动员C.贫血D.急性下壁心肌梗死E.甲状腺功能减退 [单选]柴油机运转中在气缸中部发生有规律的敲击声，可能是()的原因。A.喷油器压缩弹簧断裂B.曲柄销轴承偏磨C.活塞与气缸间隙过大D.活塞销轴承偏磨 [单选]下述哪种情况下可出现睾丸鞘膜积液（）A.睾丸肿瘤B.附睾炎C.原发病因不清D.睾丸外伤E.以上都是 [单选]疾病的三间分布是指（）A.年龄、性别和种族B.职业、家庭和环境C.国家、地区和城乡D.短期波动、季节性和周期性E.时间、地区和人间分布 [判断题]金属氧化物避雷器运行电压下当阻性电流增加1倍时，应加强监督。A.正确B.错误 [单选]Battle征是指（）A.颅后窝骨折引起的脑脊液耳漏B.颅中窝底骨折引起的脑脊液鼻漏和耳漏C.颅前窝底骨折引起的眼眶周围的青紫和肿胀D.颅后窝骨折引起的迟发性乳突部皮下淤血斑E.颅中窝底骨折引起的搏动性突眼和颅内血管杂音 [单选,A4型题,A3/A4型题]患者，女，70岁。剧烈头痛伴喷射性呕吐5小时急诊入院，有高血压病史20年。体检：意识不清，脉搏细速，呼吸深慢，双侧瞳孔不等大。此时不正确的处理是（）。A.快速静脉注射脱水剂B.首先进行脑室穿刺脑脊液引流术C.保持呼吸道通畅D.密切观察生命体征E.诊断明 [问答题,简答题]什么是得率？影响甲醇得率的因素有哪些？ [单选]丙烯塔压力正常，丙烯质量不合格，下列哪项是正确的（）。A、提高塔底蒸汽量B、提高回流量C、降低脱丙烷塔塔压D、提高脱丙烷塔塔底温度 [多选]药物的相互作用在药物动力学方面表现在下列哪几个方面（）A.影响药物吸收过程B.影响药物分布过程C.影响药物的用法D.影响药物的排泄过程E.影响药物代谢过程 [单选]下列关于校对在出版工作中作用和地位的表述，错误的是（）。A.校对工作是编辑工作的重要组成部分B.校对工作是出版物内在质量的把关环节之一C.校对工作是文字性、学识性的创造性劳动D.校对工作是编辑工作的重要先决条件 [单选]“统治阶级有统治阶级的道德，被统治阶级有被统治阶级的道德”。这名话说明了（）A.道德的时代性B.道德的普遍性C.道德的阶级性D.道德的抽象性 [单选]站修更换轮对时，同一车辆轮径差不大于（）。A、30mmB、40mmC、50mmD、60mm [填空题]常见的液压泵有（）油泵、（）油泵、（）油泵。 [单选,A2型题,A1/A2型题]月经初潮是指（）A.月经第1次来潮B.月经期的第1天C.月经第1天的出血量D.两次月经第1日间隔的时间E.月经期下腹
[单选,A型题]可作片剂崩解剂的是（）A、交联聚乙烯吡咯烷酮B、预胶化淀粉C、甘露醇D、聚乙二醇E、聚乙烯吡咯烷酮 [单选]乙琥胺治疗癫痫疗效最好的类型是（）。A.小发作B.精神运动性发作C.局限性发作D.大发作E.间脑发作 [单选]目前最理想的永久性创面覆盖物是()A．自体皮肤B．猪皮C．表皮细胞膜片D．鸡皮E．同种异体皮 [填空题]炎热天气行车要注意防止发动机过热，一般水温表读数不超过（）为正常 [问答题,简答题]旅客王宾乘坐CA985航班头等舱有北京至旧金山，其在办理乘机手续柜台交运精密仪器意见30公斤，另外交运行李意见10公斤，请问，精密仪器可否作为免费行李接收？为什么？ [单选]以下哪种行为可以称为项目？（）A．开班会B．给新计算机安装操作系统及相关软件C．设计一种新型的自行车D．生产一批新型的自行车 [多选]先天性巨结肠的辅助检查包括A．钡灌肠B．直肠肛管测压C．直肠指诊D．直肠活检神经节细胞减少或缺如E．直肠肛管肌电图检查 [多选]桥梁拆除施工应根据拆除工程施工现场作业环境，制定相应的消防安全措施，施工现场应设置（）等设施和器材。A.消防车通道B.消火栓C.报警器D.应急救援车E.灭火器材 [问答题,简答题]五岳衡山位于哪一省？ [多选]货币的演变形式是（）。A.贵金属B.铸币C.纸币D.以信用工具为主的货币 [名词解释]物料容重 [单选,A2型题,A1/A2型题]下列哪种情况尿中胆素原族排泄量会减少（）。A.肝功能轻度损伤B.肠道阻塞C.溶血D.碱中毒E.胆道阻塞 [单选]关于肺功能检查应用范围下列哪项是错的()A．确定肺功能障碍的程度B．判定肺功能障碍的类型C．可以发现肺部较小的病变D．可用以判断某些药物的疗效E．可以区别心源性和肺源性呼吸困难 [单选]泵的扬程是指泵对单位重量液体所提供的（）。A、能量B、有效能量 [问答题,简答题]地基破坏模式有几种？发生整体剪切破坏时p-s曲线的特征如何？ [单选]企业（）已成为竞争的重要内容，自毁企业形象，无疑将失去顾客。A.员工和素质B.产品和售价C.管理和技术D.形象和信誉 [单选,A1型题]膜部尿道损伤，尿生殖膈没损伤时，尿外渗至（）A.会阴部B.阴囊部C.阴茎部D.膀胱前列腺周围E.下腹壁 [填空题]亮度对比是视场中（）与（）之比。 [单选]当签订合同后，当事人对合同的格式条款的理解发生争议时，以下做法不正确的是（）。A.应按通常的理解予以解释B.有两种以上解释的，应做出有利于提供格式条款的一方的解释C.有两种以上解释的，应做出不利于提供格式条款的一方的解释D.在格式条款与非格式条款不一致时，应采用 [填空题]确定粗集料压碎值试验试样质量时，按大致相同的数量将试样分（）装入金属量筒中，整平后，每层用金属棒在整个层面上均匀捣实（）次。 [单选]雇主无故克扣、拖欠工资，家政服务员可以到（）要求解决。A、劳动管理部门B、公安机关C、工商局D、税务局 [填空题]()是指地基稳定具有足够安全度的承载力，它相当于地基极限承载力除以一个安全系数k，且要验算地基变形不超过允许变形值。 [单选,A2型题,A1/A2型题]维持子宫在盆腔正中位置的韧带是（）A.圆韧带B.阔韧带C.主韧带D.宫骶韧带E.骶结节韧带 [填空题]世界上最早用于民用航空运输的飞行器是轻与空气的飞行器---（）。 [名词解释]Web服务器 [单选]窦性心动过缓很少见于下列哪种临床情况（）.A.正常健康人B.运动员C.贫血D.急性下壁心肌梗死E.甲状腺功能减退 [单选]柴油机运转中在气缸中部发生有规律的敲击声，可能是()的原因。A.喷油器压缩弹簧断裂B.曲柄销轴承偏磨C.活塞与气缸间隙过大D.活塞销轴承偏磨 [单选]下述哪种情况下可出现睾丸鞘膜积液（）A.睾丸肿瘤B.附睾炎C.原发病因不清D.睾丸外伤E.以上都是 [单选]疾病的三间分布是指（）A.年龄、性别和种族B.职业、家庭和环境C.国家、地区和城乡D.短期波动、季节性和周期性E.时间、地区和人间分布 [判断题]金属氧化物避雷器运行电压下当阻性电流增加1倍时，应加强监督。A.正确B.错误 [单选]Battle征是指（）A.颅后窝骨折引起的脑脊液耳漏B.颅中窝底骨折引起的脑脊液鼻漏和耳漏C.颅前窝底骨折引起的眼眶周围的青紫和肿胀D.颅后窝骨折引起的迟发性乳突部皮下淤血斑E.颅中窝底骨折引起的搏动性突眼和颅内血管杂音 [单选,A4型题,A3/A4型题]患者，女，70岁。剧烈头痛伴喷射性呕吐5小时急诊入院，有高血压病史20年。体检：意识不清，脉搏细速，呼吸深慢，双侧瞳孔不等大。此时不正确的处理是（）。A.快速静脉注射脱水剂B.首先进行脑室穿刺脑脊液引流术C.保持呼吸道通畅D.密切观察生命体征E.诊断明 [问答题,简答题]什么是得率？影响甲醇得率的因素有哪些？ [单选]丙烯塔压力正常，丙烯质量不合格，下列哪项是正确的（）。A、提高塔底蒸汽量B、提高回流量C、降低脱丙烷塔塔压D、提高脱丙烷塔塔底温度 [多选]药物的相互作用在药物动力学方面表现在下列哪几个方面（）A.影响药物吸收过程B.影响药物分布过程C.影响药物的用法D.影响药物的排泄过程E.影响药物代谢过程 [单选]下列关于校对在出版工作中作用和地位的表述，错误的是（）。A.校对工作是编辑工作的重要组成部分B.校对工作是出版物内在质量的把关环节之一C.校对工作是文字性、学识性的创造性劳动D.校对工作是编辑工作的重要先决条件 [单选]“统治阶级有统治阶级的道德，被统治阶级有被统治阶级的道德”。这名话说明了（）A.道德的时代性B.道德的普遍性C.道德的阶级性D.道德的抽象性 [单选]站修更换轮对时，同一车辆轮径差不大于（）。A、30mmB、40mmC、50mmD、60mm [填空题]常见的液压泵有（）油泵、（）油泵、（）油泵。 [单选,A2型题,A1/A2型题]月经初潮是指（）A.月经第1次来潮B.月经期的第1天C.月经第1天的出血量D.两次月经第1日间隔的时间E.月经期下腹