英语现在完成时的用法复习知识点精析精练
1. 表示过去的动作对现在的影响或结果，常用recently, lately, ever, never, once, before, yet, just等作时间状语。
He hasn't heard any news from his son lately. 他最近没有得到他儿子的任何信息。
Have you ever been to London? 你曾去过伦敦呢？
2. 表示开始于过去某一时刻，一直持续到现在而且还有可能继续下去的动作。常用so far, up till now, since, for a long time, in the past/last few years, these days等作时间状语。
So far no life has been found outside the earth.
迄今为止，没有在地球外的星球上发现生命。
He has learned 5，000 English words since he went to college.
自从他上大学以来已经学会了5,000英语单词。
3. “This/It is＋the ＋序数词＋time ＋that...”句式中，that后的从句用现在完成时。
This is the second time that I have visited the university.
这是我第二次参观这所大学。
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非延续性动词的否定形式可以与表示延续时间的状语连用，即动作不发生的状态是可以持续的。
I haven''t received his letter for almost a month. 我将近一个月都没有收到他的来信。
since与for用法比较
since 用来说明动作起始时间
for 用来说明动作延续时间长度
I have lived here for more than twenty years. 我在这里住了二十多年了。
I have lived here since I was born.. 我从出生起就住在这里。
My aunt has worked in a clinic since 1949. 我姑姑从1949年开始一直在一个小诊所工作。
误区提醒
并非有for 作为时间状语的句子都用现在完成时。
I worked here for more than twenty years. 我现在已不在这里工作。
I have worked here for many years. 现在我仍在这里工作。
The freezing Northeast hasn’t been a terribly fun place to spend time this winter, so when the chance came for a weekend to Sarasota, Florida, my bags were packed before you could say “sunshine”. I left for the land of warmth and vitamin C(维生素C), thinking of beaches and orange trees. When we touched down to blue skies and warm air, I sent up a small prayer of gratefulness. Swimming pools, wine tasting, and pink sunsets(at normal evening hours, not 4 in the afternoon) filled the weekend, but the best part - particularly to my taste, dulled by months of cold- weather root vegetables- was a 7 a.m. adventure to the Sarasota farmers’ market that proved to be more than worth the early wake-up call.
The market, which was founded in 1979, sets up its tents every Saturday from 7:00 am to 1 p.m., rain or shine, along North Lemon and State streets. Baskets of perfect red strawberries; the red-painted sides of the Java Dawg coffee truck; and most of all, the tomatoes: amazing, large, soft and round red tomatoes.
Disappointed by many a broken, vine-ripened(蔓上成熟的) promise, I’ve refused to buy winter tomatoes for years. No matter how attractive they look in the store, once I get them home they’re unfailingly dry, hard, and tasteless. But I homed in, with uncertainty, on one particular table at the Brown’s Grove Farm’s stand, full of fresh and soft tomatoes the size of my fist. These were the real deal- and at that moment, I realized that the best part of Sarasota in winter was going to be eating things that back home in New York I wouldn’t be experiencing again for months.
Delighted as I was by the tomatoes in sight, my happiness deepened when I learned that Brown’s Grove Farm is one of the suppliers for Jack Dusty, a newly opened restau rant at the Sarasota Ritz Carlton, where - luckily for me - I was planning to have dinner that very night. Without even seeing the menu, I knew I’d be ordering every tomato on it.
1. What did the author think of her winter life in New York?
A. Exciting. B. Boring. C. Relaxing. D. Annoying.
2. What made the author’s getting up late early worthwhile?
A. Having a swim. B. Breathing in fresh air.[来源:学科网]
C. Walking in the morning sun. D. Visiting a local farmer’s market.
3. What can we learn about tomatoes sold in New York in winter?
A. They are soft. B. They look nice. C. They taste great. D. They are juicy.
4. What was the author going to that evening?
A. Go to a farm. B. Check into a hotel. C. Eat in a restaurant. D. Buy fresh vegetables.
