基础英语讲座【69】
<p> ★ <span word="Which">Which</span> <span word="of">of</span> <span word="these">these</span> <span word="do">do</span> <span word="you">you</span> <span word="think">think</span> <span word="is">is</span> <span word="the">the</span> <span word="mostuseful">mostuseful</span> <span word="invention">invention</span>?</p><p> <span word="Which">Which</span> <span word="of">of</span> <span word="these">these</span> <span word="do">do</span> <span word="you">you</span> <span word="think">think</span> <span word="is">is</span> <span word="the">the</span> <span word="most">most</span> <span word="useful">useful</span> <span word="invention">invention</span>?你认为哪一种是最有用的发明。</p><p> <span word="Do">Do</span> <span word="you">you</span> <span word="think">think</span> 语法上通常认为是插入语，意思是说，去掉它们以后，句子仍然成立。（如果认为<span word="you">you</span> 是主语，<span word="think">think</span> 是谓语，其它成份是宾语从句也有道理）。例如：</p><p> <span word="Who">Who</span> <span word="do">do</span> <span word="you">you</span> <span word="think">think</span> <span word="is">is</span> <span word="over">over</span> <span word="there">there</span>?</p><p> 你认为谁在那儿呢？</p><p> <span word="What">What</span> <span word="do">do</span> <span word="you">you</span> <span word="think">think</span> <span word="has">has</span> <span word="happened">happened</span>?</p><p> 你认为发生了什么事情了？</p><p> ★ <span word="He">He</span> <span word="was">was</span> <span word="always">always</span> <span word="trying">trying</span> <span word="out">out</span> <span word="new">new</span> <span word="ideas">ideas</span>.</p><p> <span word="He">He</span> <span word="was">was</span> <span word="always">always</span> <span word="trying">trying</span> <span word="out">out</span> <span word="new">new</span> <span word="ideas">ideas</span>.他总是在试验一些新的想法。</p><p> <span word="Be">Be</span> <span word="always">always</span> <span word="doing">doing</span> 表示总是在做着表达说话人的一种感情，如赞扬或者批评。例如：</p><p> <span word="My">My</span> <span word="students">students</span> <span word="are">are</span> <span word="always">always</span> <span word="studying">studying</span> <span word="hard">hard</span>.</p><p> 我的学生总是在努力学习。</p><p> <span word="He">He</span> <span word="is">is</span> <span word="always">always</span> <span word="making">making</span> <span word="some">some</span> <span word="mistakes">mistakes</span>.</p><p> 他总是在犯一些错误。</p><p> ★ <span word="His">His</span> <span word="father">father</span> <span word="saw">saw</span> <span word="him">him</span> <span word="sitting">sitting</span> <span word="on">on</span> <span word="some">some</span> <span word="eggs">eggs</span>.</p><p> <span word="His">His</span> <span word="father">father</span> <span word="saw">saw</span> <span word="him">him</span> <span word="sitting">sitting</span> <span word="on">on</span> <span word="some">some</span> <span word="eggs">eggs</span>.他父亲看到他正坐在一些鸡蛋上。</p><p> <span word="See">See</span> <span word="sb">sb</span>.<span word="doing">doing</span> 表示看见某人正干某事。同义词组<span word="see">see</span> <span word="sb">sb</span>.<span word="do">do</span> 则表示看见某人做了某事。类似<span word="see">see</span> 的动词还有<span word="hear">hear</span>,<span word="feel">feel</span>,<span word="watch">watch</span>.例如：</p>
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