《英语重点短语用法详解.docVIP

七年级主要短语及用法 1. be interested in doing sth. = be keen on doing sth. 对做某事感兴趣；热衷于做某事 He is interested in singing. = He is keen on singing. They are interested in dancing. = They are keen on dancing.doing---表示动词的现在分词（-ing形式）动词变为ing形式分几大类，具体分类第二单元语法课件里有详细讲解。I am interested in playing basketball. = I am keen on playing basketball. Are you interested in playing the piano? --- No, I am not. 钢琴属于西洋乐器，所以在play后面要加the；而球类运动（如basketball等）则不用 be interested in sth. = be keen on sth. 对某物感兴趣；热衷于某物 Fred is interested in sports. = Fred is keen on sports. Our teachers are interested in music. = Our teachers are keen on music. 2. come from… = be from… 来自... She comes from China. = She is from China. 主语是第三人称单数，动词后要加s；句中有be动词时，要用is（过去时用was） She doesn’t come from China. = She is not from China. 变为否定句时，要注意句中是否有be动词： 有be动词时，直接在be动词后加not； 没有be动词时，则需添加一个助动词（do / does），然后在助动词后加not. Does she come from China? = Is she from China? 变为疑问句时，句子中如果有be动词，就将be动词提到主语前，句尾加问号； 如果没有be动词，则需添加助动词（do / does）并放到句首，同时，句中的动词必须变为原形。（comes ? come） This movie was based on a real story. = This movie was from a real story. = This movie came from a real story. 这部电影是根据一个真实故事改编的。（这部电影来自一个真实的故事） be based on...意思是“以...为基础”； 在例句的这种情况中，可以用be from和come from来替换。（其它时候不可以替换） 电影的改编过程，通常都是已经完成的事情，所以大多用过去式。 be动词的过去式为was, were；动词过去式大部分直接加ed，但也有少数特殊变化。 Was this movie based on a real story? = Was this movie from a real story? = Did this movie come from a real story? 变为疑问句时，特别要注意动词的时态；动词过去式决定助动词必须用did. 3. pass sb. sth. = pass sth. to sb. 把某物(sth.)传递给某人(sb.) Can you pass me the cup please? = Can you pass the cup to me please? Can意思是“能够”，属于情态动词。 只要有情态动词，动词永远都用原形，不再受主语影响Tom passed his brother a pen just now. = Tom passed a pen to his brother just now. just now意为“刚才”，说明句子是过去时，所以动词要变过去式Did Tom pass his brother the pen just now? = Did Tom pass the pen to his brother just now? 过去时，句中没有“be动词”，变疑问句时要用“助动词”did 4. each other = one another 彼此，互相 We always help each o