2014中考英语高频词汇串讲第一讲a (an)
<p> <span word="a">a</span> (<span word="an">an</span>)</p><p> 考点1：不定冠词，表示泛指。<span word="Eg">Eg</span>：<span word="A">A</span> <span word="tiger">tiger</span> 就表示一只老虎，是泛指;而<span word="the">the</span> <span word="tiger">tiger</span>则表示那只老虎，是特指。</p><p> 考点2：元音前加<span word="an">an</span>，辅音前加<span word="a">a</span>，注意：元音和辅音指的是音标而不是拼写。<span word="Eg">Eg</span>：<span word="hour">hour</span>前需要加<span word="an">an</span>，构成<span word="an">an</span> <span word="hour">hour</span>;而<span word="useful">useful</span> <span word="tool">tool</span>前面加的是<span word="a">a</span>，构成<span word="a">a</span> <span word="useful">useful</span> <span word="tool">tool</span>。</p><p> 【相关拓展】</p><p> <span word="A">A</span>和<span word="One">One</span>也表示一个，但<span word="one">one</span>更强调是一个，而<span word="a">a</span>则没有强调的意味。</p><p> <span word="Ability">Ability</span> 名词，可数(复数为<span word="abilities">abilities</span>)</p><p> 考点1：<span word="have">have</span> <span word="an">an</span>(<span word="the">the</span>)<span word="ability">ability</span> <span word="to">to</span> <span word="do">do</span> <span word="sth">sth</span>。切记，不是 <span word="of">of</span> <span word="doing">doing</span></p><p> 考点2：形容词<span word="able">able</span>，<span word="be">be</span> <span word="able">able</span> <span word="to">to</span> <span word="do">do</span>。可运用于各种时态，<span word="Eg">Eg</span>：<span word="I">I</span> <span word="was">was</span> <span word="able">able</span> <span word="to">to</span> <span word="play">play</span> <span word="the">the</span> <span word="piano">piano</span> <span word="when">when</span> <span word="I">I</span> <span word="was">was</span> <span word="young">young</span>.</p><p> 【相关拓展】</p><p> <span word="ability">ability</span>加否定前缀<span word="dis">dis</span>，构成名词<span word="disability">disability</span>，残疾或残疾人，当做残疾人讲可数，<span word="disabilities">disabilities</span>就相当于<span word="the">the</span> <span word="disabled">disabled</span>，表示一类人。 形容词<span word="disabled">disabled</span>，残疾的。</p><p> <span word="able">able</span>加否定前缀<span word="un">un</span>，构成<span word="unable">unable</span>，不能、不会。<span word="Eg">Eg</span>：<span word="They">They</span> <span word="were">were</span> <span word="unable">unable</span> <span word="to">to</span> <span word="explain">explain</span> <span word="why">why</span>.</p><p> <span word="About">About</span></p><p> 考点1：表示大约。<span word="Eg">Eg</span>：<span word="about">about</span> 5 <span word="oclock">oclock</span>.</p><p> 考点2：同<span word="around">around</span>，在。。。周围。</p><p> 考点3：关于，对于。<span word="Eg">Eg</span>：<span word="His">His</span> <span word="research">research</span> <span word="is">is</span> <span word="about">about</span> <span word="animals">animals</span>.</p>
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