学校缺课的英文

He could not explain the resean that he absented from school for a long time.

He could not explain his long time for the absence from school

from的用法1．表示纯粹的分离，作"分开"、"分离"、"隔开"、"离开"解，常构成下列表达形式：separate the good from the evil（把好的和坏的分开）remove from the city to the countryside（从城市移居乡村）part from a friend（断交）depart from one's hometown（背井离乡）keep away from dangerous things（远离危险）flee from prison（逃离监狱）keep (stand. aloof from the society（离群索居）rise from table（离席）fall from a tree（从树上掉下来）withdraw from a meeting（离会）move from one place to another（从一处迁至另一处）retire from one's work（退休）live apart from other people（离群索居）2．表示"消失"、"消除"：The plane soon disappeared from sight. 飞机很快消失不见了。After hearing this, the smile fled from her face. 听到这里，她的笑容立即消失了。Let us remove all doubts from our minds. 让我们消除相互间的猜疑吧。3．表示"禁止"、"戒除"、"免除"、"解除"、"除去"、"使免除"、"使脱离"等，有时具有否定意义，常构成下列表达形式：remove dirt from a table（除去桌子上的灰尘）release sb. from his suffering（解除某人的痛苦）clear the land from trees（伐去地上的树木）free sb. from debts（免去某人的债务）dismiss sb. from his service（解除某人的职务）expel (dismiss) a student from school（开除学生）be excused from punishment（被免去处罚）be safe from danger（没有危险）be secure from danger（没有危险）be free from anxiety（无忧无虑）rescue a person from danger（救人于危难）deliver a person from danger（救人于危难）4．表示"防止"、"阻止"、"阻碍"等，有时具有否定意义，常构成下列表达形式：prevent sb. from doing sth.（防止、阻止某人做某事）keep sb. from doing sth.（阻止某人做某事）stop sb. from doing sth.（阻止某人做某事）hinder sb. from doing sth.（妨碍某人做某事）prohibit sb. from doing sth.（禁止、阻止某人做某事）discourage sb. from doing sth.（劝阻某人不去做某事）dissuade s. from doing sth.（劝阻某人不去做某事）5．表示"不在"、"缺席"等：be absent from a class（缺课） absent oneself from class（缺课）be away from home（不在家） stay away from a place（不在某个地方）6．与protect, guard, shelter, defend等动词搭配表示"保护"：An umbrella protects us from rains. 伞可以使我们不受雨淋。The big tree sheltered them from the rain. 大树保护他们没有被雨淋湿。7．表示"隐藏"、"隐蔽"、"隐瞒"等，常与hide, conceal等动词搭配：As a student, you should have no secret from you teachers. 作为学生，你不应该有任何隐瞒老师的事。The house was hidden from view by the trees. 那座房屋被树遮着了。He always tries to conceal his poverty from others. 他总是设法不让别人知道自己的贫困。8．与tell, know, distinguish, discriminate, differ, different等词语搭配表示"区别"：Chinese differs (is different) from Japanese in many ways. 汉语和日语在许多方面存在着差异。It's not easy to tell a true friend from a false one. 辨别真假朋友不是件容易的事。How would know an Englishman from an American? 你是怎么分辨英国人和美国人的？You must learn to distinguish good from evil. 你必须学会辨别事情的好坏。A little baby usually cannot discriminate one thing from another. 婴儿通常不能分辨两种东西。上述情况表明，在英语学习过程中，介词的确是一种不可忽视的语言现象，首先，介词的重要性要求我们一定要努力学习与掌握，其次，介词运用上的复杂性和灵活性又要求我们在学习与掌握介词的过程中必须抱着慎之又慎态度认真。