含有动词过去式的英语作文 并把动词过去式和原型标出来
I Helped A Woman Yesterday
Yesterday, I saw a young woman cry in the station. Why did she cry so hard? Did she lose her money? Did someone hurt her? Was she in trouble? Or was someone in her family in trouble? I felt very sympathy for her. I wanted to I went up to her, and asked him why she was crying so hard.
Because she was too sad, it took her quite a long time to calm down. She expressed her thanks to me, and said that she was in this city to find her husband, who was in this city to work. But she couldn't find the address, and her money was stolen by a pickpocket. "What shall I do?" She began crying again.
"Don't worry!" I said, " Perhaps I can help you."
I took her to the police, and told the police all about this. The policeman said that he was happy to help.
短文中包含的过去时及其原形：
helped--help; saw--see; did---does; was--is; felt--feel; wanted--want; went--go; asked--ask; took--take; expressed--express; said--say; could--can; began--begin; told--tell
动词过去式后的动词为什么用原形
英语动词有十二个你需要特别注意的：do be have can may need must will shall dare used ought.这十二个词的共同特点是：1。只有这十二个词可以提前构成一般疑问句。2。只有这十二个词可以在后面直接+not构成英文否定结构句。3。这十二个词无实际意义，需和普通有实际意义动词构成合成谓语。这样的动词可以被叫做特殊动词。其中do,can,may,need,must,will,shall,dare这八个词后面必跟省略to 的动词不定式。注意need,dare只能用在疑问句和否定句中。但是当do做，have有，can用罐装，need需要，will意志，遗赠，dare敢，use使用，这些词单独使用做谓语时，就成了普通实意动词。也就不再能提前构成疑问，或加not构成否定了。
camp医学上是什么意思
camp在医学上的意思是环磷酸腺苷的物质。环磷酸腺苷是细胞内参与调节物质代谢和生物学功能的重要物质，是生命信息传递的“第二信使”。在体内可以促进心肌细胞的存活，增强心肌细胞抗损伤、抗缺血和缺氧能力。促进钙离子向心肌细胞内流动，增强磷酸化作用，促进兴奋，收缩偶联，提高心肌细胞收缩力，增加心输出量。同时还扩张外周血管，降低心脏射血阻抗，减轻心脏前后负荷，增加心排出量，改善心功能。从而对心脏起到营养心肌、正性肌力、舒张血管、抗血小板凝聚和抗心律失常的作用。camp的作用：在临床上主要用于治疗心功能不全、心绞痛和心肌梗死。尤其是对洋对黄类强心药中毒或不敏感的患者。它是在人体内广泛存在的一种具有生理活性的重要物质，由三磷酸腺苷在腺苷环化酶催化下生成，能调节细胞的多种功能活动。作为激素的第二信使，在细胞内发挥激素调节生理机能和物质代谢作用，能改变细胞膜的功能，促使网织肌浆质内的钙离子进入肌纤维，从而增强心肌收缩，并可促进呼吸链氧化酶的活性，改善心肌缺氧，缓解冠心病症状及改善心电图。
camp是什么意思英语
camp指露营。读音：英［kæmp]，美［kæmp]。释义：n.露营；营地；度假营；兵营；阵营；放牧区；年度短期兵役；史前古营垒遗址；造作的举止。v.露营；扎营；（牲畜）集中休息；扎围栏。adj.女性化的；夸张的，（服饰）稀奇古怪的。变形：过去式camped，过去分词camped，现在分词camping，第三人称单数camps，复数camps。短语：camp chair折椅。camp fire营火。in the same camp意见相同。camp的用法camp的基本意思是“营地”，既可用作可数名词，也可用作不可数名词。camp的另一个意思是“收容所”，为可数名词。camp可作“阵营”“集团”解，其谓语动词既可用作单数，也可用作复数。camp的基本意思是指在房间以外的地方临时过夜，即“宿营”“露营”。camp多用作不及物动词，其后通常接表示地点或时间的状语性短语；偶尔用作及物动词时多接反身代词作宾语。
