时间:2022-07-30 01:32
an的词性是不定冠词。冠词是虚词,本身不能单独使用,也没有词义,它用在名词的前面,帮助指明名词的含义。an有三种意思:1、指初次提及或非特指的人或物的一个;2、一类人或事物中非特指的任何一个;3、用于前加形容词或后加修饰语的不可数名词之前的一种。
1、an用在以元音字母(a,e,i,o,u)开头,或以不发音的h字母开头的单词前面。
例如:an apple一个苹果,an island一个岛,an uncle一位大叔。
2、an还用在发音以元音开头的单个字母前面。
例如:an L-plate一块“实习驾驶”车牌,an MP一个国会议员,an SOS一个呼救信号。
3、an没有性别的变化。
例如:an actor一个男演员,an actress一个女演员。
1、She wanted to rent an apartment near the campus.
她想在学校附近租一套房子。
2、Before she left for London,Sally sent me a picture of herself.
萨莉动身去伦敦前送给我一张她的照片。
3、A grammar book is necessary to a language learner.
对语言学习者来说,语法书是很必要的。
4、A teacher likes putting a watch on his/her desk while lecturing.
老师讲课时总爱将手表放在讲台上。
5、I am not girl.I am boy.
我不是女孩,我是男孩。
1、The media played an important part in the last election.
大众传媒在上一次选举中发挥了重要作用。
2、This piece of equipment is an exciting new development.
这台设备是一项振奋人心的最新研究成果。
3、An accurate diagnosis was made after a series of tests.
准确的诊断是在一系列的检查后作出的。
4、I think you have made an error in calculating the total.
我想你在计算总数时出了差错。
5、We put an ad in the local paper.
我们在当地报纸上登了一则广告。
6、The government's policy is an open door to disaster.
政府的政策为灾难敞开了大门。
7、The company needs an infusion of new blood.
公司需要吸收新人。
8、This door should only be used in an emergency.
这道门只能在紧急情况下使用。
9、He's an expert at getting his own way.
他在如何达到自己的目的方面很在行。
10、Lack of money will have an adverse effect on our research programme.
缺少资金将对我们的研究方案有不利影响。
11、It's an ideal proving ground for the new car.
这里是个理想的新车试验场。
12、Always make a backup disk as an insurance policy.
为保险起见,每次都要做备份磁盘。
13、There was so much traffic that we were an hour late.
路上车辆那么多,我们迟到了一个小时。
14、The new office block has become an expensive white elephant.
这座新办公大楼成了昂贵的摆设。
15、There is still an immense amount of work to be done.
还有非常非常多的工作没有做。
16、The new regulations will not make an appreciable difference to most people.
新的规定对大多数人将无大影响。
17、It is important that students develop an awareness of how the Internet can be used.
重要的是学生逐渐懂得如何使用互联网。
18、She's an old hand at dealing with the press.
她是对付新闻界的一位老手。
19、Cars have become an indispensable part of our lives.
汽车已成了我们生活中必不可少的一部分。
20、He's got an O level in Russian.
他通过了俄语普通证书考试。