現在完成進行時學習早知道，現在完成進行時與現在完成時的區別
Dashan,who (learn) crosstalk,the Chinese comedic tradition,for decades,wants to mix it up with the Western stand-up tradition.(江蘇真題)
【答案】 has been learning
【解析】 本題考查動詞的時態。句意:大山學習相聲——中國的傳統喜劇形式——數十年了,他想把中國相聲與西方的脫口秀融合起來。由for decades可知who引導的非限制性定語從句要用完成時,再由主句謂語動詞wants可知應用現在完成進行時(has been learning)。
---We’ve spent too much money recently.
----well, it isn’t surprising. Our friend and relatives _______around all the time
A. are coming B. had come C. were coming D. have been coming
答案：D.“近來我們花了太多錢了。----並不驚奇，近來朋友和親戚總是來訪。”用have been coming表示從過去到現在一直髮生的動作。
—Excuse me,which movie are you waiting for?
—The new Star Wars.We (wait) here for more than two hours.(北京真題)
【答案】 have been waiting 本題考查動詞的時態。句意:——打擾了,你們在等著看哪部電影呢?——新版的《星球大戰》。我們在這兒等了兩個多小時了。結合句意可知,此處表示一直在等待著,並且還有可能繼續等下去,故用現在完成進行時(have been waiting)。
感悟語篇
The home computers industry has been growing rapidly in theUnited Statesfor the last ten years. Computers used to be large, expensive machines that were very difficult to use. But scientists and technicians have been making them smaller and cheaper while at the same time they have been made easier to use. As a result, their popularity has been increasing as more people have been buying computers for their homes and businesses. Computers have been designed to store information and compute complex problems. Some have voices that speak with the operators. Stores use computers to keep records of their inventories and to send bills to their customers. Offices use computers to type letters, record business and communicate with other offices. People have been using computers in their homes to keep track of expenses and turn appliances on and off. One important new use for computers is for entertainment. Many new games have been designed to be played on the computers. People of all ages have been playing these games. They have been going to Arcades where the computer games can be played for a small cost. People also have been buying home computers to play computer games at home. They have become very popular indeed.
