职称英语重点语法解析常考动词5大时态
<p> 职称英语重点语法解析:常考动词5大时态</p><p> 在职称英语考试中,动词时态是一个每年必考、而且考察点之多、范围之广的语法知识点,如果考生不能熟练掌握动词时态的结构及运用,在职称英语的复习中将寸步难行.</p><p> 一般现在时</p><p> 1. 一般现在时的概念</p><p> 一般现在时表示经常的、习惯性的动作或存在的状态.</p><p> 2. 一般现在时的构成</p><p> 一般现在时的构成主要有两种形式:</p><p> <span word="be">be</span>型:句子的谓语动词只有<span word="be">be</span>:</p><p> <span word="a">a</span>.肯定句中,只出现<span word="be">be</span>,如: <span word="I">I</span> <span word="am">am</span> <span word="a">a</span> <span word="student">student</span>.我是一名学生.</p><p> <span word="b">b</span>.否定句中,要在<span word="be">be</span>后面加<span word="not">not</span>,如: <span word="She">She</span> <span word="isnt">isnt</span> <span word="a">a</span> <span word="teacher">teacher</span>.她不是教师.</p><p> <span word="c">c</span>.一般疑问句,要将<span word="be">be</span>放在句子开头,句尾用问号,答语用<span word="Yes">Yes</span>,主语+<span word="be">be</span>.或<span word="No">No</span>,主语+<span word="be">be</span>+<span word="not">not</span>.如:</p><p> -<span word="Are">Are</span> <span word="you">you</span> <span word="ready">ready</span>?-你准备好了吗? -<span word="Yes">Yes</span>,<span word="I">I</span> <span word="am">am</span>.-是的,我准备好了.</p><p> 实义动词型:句中的谓语动词为实义动词:</p><p> <span word="a">a</span>.肯定句中,只出现实义动词,如:</p><p> <span word="I">I</span> <span word="get">get</span> <span word="up">up</span> <span word="in">in</span> <span word="the">the</span> <span word="morning">morning</span>.我早晨起床.</p><p> <span word="b">b</span>.否定句中,要在实义动词前面加<span word="do">do</span>+<span word="not">not</span>,<span word="do">do</span>作助动词,本身无意义,常与<span word="not">not</span>缩写成<span word="dont">dont</span>,如:</p><p> <span word="I">I</span> <span word="dont">dont</span> <span word="like">like</span> <span word="vegetables">vegetables</span>.我不喜欢蔬菜.</p><p> <span word="c">c</span>.一般疑问句,要在句子开头加助动词<span word="Do">Do</span>,句尾用问号,简略答语用<span word="Yes">Yes</span>,主语+<span word="do">do</span>.或<span word="No">No</span>,主语+<span word="do">do</span>+<span word="not">not</span>.如:</p>
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