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at词组的用法引导词的选择及语序 at (the) least 至少；最少。反义词组为at (the)most至多；最多。 —Mr Smith looks older than his real age.In fact,he is at (the)most 40 years old.史密斯先生很显老，实际上他最多40岁。 —Oh, really?I thought he was 50 years old at (the)least.噢，真的吗？我以为他至少50岁了。 at the beginning of 在……初（开头），可指时间与空间。如： at the beginning of term 在学期开始 at the beginning of the book 在那本书的开头 at the beginning 单独用时间at first，也可说in the beginning. 比较：at the end of 在……末（尽头） at the end 在末尾处 in the end 最终，同at last in the middle of 在……中期 from beginning to end 从头至尾 at the doctor’s该结构为介词+名词所有格，意为“在诊所”。所有格-’s后一般接名词，如her mother’s bike ,但有时这个名词可省略，主要表现在以下两个方面： ①指一个企业，机构，教堂，学校，医院，家庭，理发店，店铺时。如： She is at the hairdresser’s. ②为了避免重复，省略-’s后的名词。如： I have read some of Shaw’s plays,but none of Shakespeare’s. at the last moment 在最后关头 at the moment 此刻；正在那时for a moment片刻，一会儿for the moment 目前，暂时； in a moment立刻，马上 at the top of在……的顶部，上方； at the top of a mountain在山顶；at the top of one’s voice高声地，尖声地 at war 该介宾词组意思是“处于战争或交战状态”。在句中常作表语。如： The U.S.A.and Iraq are at war again. 引导词的选择及语序 1. 陈述句：S + V + that + 陈述语序 (S + V) “That is the trouble”, said Bill. 改为：Bill said _________ _________ _________ the trouble. 【注】：that 可省略，但如果是两个或两个以上的宾语从句并列，则第二个that不可省略。 He told me (that) he had finished his work and that he would like to have a holiday. 2. 一般疑问句：S + V + if / whet her + 陈述语序 (S + V) He asked, “Are you leaving tonight?” 改为：He asked us _________ _________ _________ leaving that night. 3. 特殊疑问句：S + V + what / who / which / whose / when + 陈述语序 (S + V) “Why did you lock the door?” father said to Anne. 改为：Father asked Anne _________ _________ _________ _________ the door. 4.祈使句：S + V + sb. to do / not to do (1)表示“命令”：tell, order, command (2)表示“请求”：ask, beg, request (3)表示“建议”：advise, suggest “Don’t make noise in the library.” the teacher said to the students. 改为：The teacher _________ the students_________ _________ _________ noise in the library. 
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社会生活
