has+过去式的用法有哪些
has+过去式的用法有哪些
has的原型是have，那么你知道has +过去式的用法是什么吗?下面是学习啦小编为你整理的has +过去式的用法，希望大家喜欢!
has +过去式的用法
主语+have(has)+过去分词(done)
1.现在完成时用来表示现在之前已发生过或完成的动作或状态,但其结果却和现在有联系,也就是说,动作或状态发生在过去但它的影响现在还存在.
I have lost my wallet.(含义是:现在我没有钱花了.)
Jane has laid the table.(含义是:已可以吃饭了.)
Michael has been ill.(含义是:现在仍然很虚弱)
He has returned from abroad. (含义是:现在已在此地)
2. 现在完成时可以用来表示发生在过去某一时刻的,持续到现在的情况,常与for,since连用.
Mary has been ill for three days.
I have lived here since 1998.
3. 现在完成时往往同表示不确定的过去时间状语连用,如already, yet, just, before, recently,still, lately等:
He has already obtained a scholarship.
I haven't seen much of him recently (lately).
We have seen that film before.
Have they found the missing child yet
4. 现在完成时常常与表示频度的时间状语连用,如often, sometimes, ever, never, twice, on several occasion等:
Have you ever been to Beijing
I have never heard Bunny say anything against her.
I have used this pen only three times. It is still good.
George has met that gentleman on several occasions.
5. 现在完成时还往往可以同包括现在时间在内的时间状语连用,如now, up to these few days/weeks/months/years, this morning/week/month/year, now, just, today, up to present, so far等:
Peter has written six papers so far.
Man has now learned to release energy from the nucleus of the atom.
There has bee too much rain in San Francisco this year.
The friendly relations and cooperation between our two countries have been enhanced in the past few years.
Up to the present everything has been successful.
6. 现在完成时表示现在之前业已完成的动作,虽然其效果或影响仍然存在但已不再继续,但是有一些现在完成时的句子,在后面加上for+一段时间,则现在完成时的动作就表示延续性.
Thomas has studied Russian. (现在不再学俄语)
Thomas has studied Russian for three years. (=Thomas began to study Russian three years ago, and is still studying it now.(同第2点用法第一个例句)
7. 现在完成时还可以用来表示过去的一个时间到现在这段时间内重复发生的动作.
We have had four texts this semester.
has done的例句
1. She has done more to divide the Conservatives than anyone else.
她在分裂保守党这件事上所起的作用比任何人都大。
2. Estonia has done much to cultivate the friendship of western European countries.
爱沙尼亚努力发展与西欧国家的友谊。
3. He has done enough to pull the party together.
他为使政党内部团结一致已经做得够多了。
4. The baby has done a wee in his potty.
婴儿往便壶里撒了尿。
5. He has done experiments comple-mentary to those of Eigen.
他做了一些实验，作为对艾根实验的补充。
6. His equivocal response has done nothing to dampen the speculation.
他模棱两可的回应丝毫没有消除人们的猜疑。
7. Rushton has done wonders for the industry.
拉什顿创造了行业奇迹。
8. This has done incalculable damage to his reputation.
这给他的声誉造成了难以估量的损失。
9. Jack had the hardihood to deny what he has done.
杰克厚颜地否认了自己所干的事.
has的用法
v.有( have的第三人称单数 ); (亲属关系中)接受; 拿; 买到
1. Beauty is an attitude. It has nothing to do with age.
美是一种态度，与年龄无关。
2. English has hurt me a thousand times, but I still regard it as my first love.
英语伤我千百遍，我待英语如初恋。
3. A changing world has put pressures on the corporation.
日新月异的世界使这家公司感到了压力。
4. There has been a busy start to polling in today's local elections.
今天地方选举的投票一开始就人头攒动。
5. The Estonian parliament has passed a resolution declaring the republic fully independent.
爱沙尼亚议会已经通过了宣布共和国完全独立的决议。
6. The Politburo has been meeting in Peking to discuss the situation.
政治局已在北京召开会议讨论形势。
7. The strike has taken on overtones of a civil rights campaign.
罢工带上了民权运动的意味。
8. He has received extensive corrective surgery to his skull.
他的头骨做过大面积的矫形手术。
9. There has been a very mixed reaction to the decision.
对于这个决定的反应非常不一致。