Question

A：How long________Mr．Smith________as an engineer？

B：Since 1980．

1. A.
   does，work
2. B.
   has，worked
3. C.
   did，work
4. D.
   will，work

Answer 1

B
本題現(xiàn)在完成時也是表示一個從過去延續(xù)到現(xiàn)在的動作，不過是用since+動作的起點時間來表達動作的持續(xù)時間長度。(延伸)be動詞的現(xiàn)在完成時和since或for連用時，是表示一個從過去持續(xù)到現(xiàn)在的狀態(tài)，是現(xiàn)在完成時的第三種用法，如：He has been a Party memberfor five years．(since five years ago)．(他入黨已經(jīng)有五年了)(題型變化)Mr．Smith has worked as an engineer since 1980．(This is the year of 2005．)＝Mr．Smith has worked as an engineer for twenty-five years．(延伸)詢問職業(yè)可以說：What does he work as？What does he do？What's his job？What's his profession？What's his occupation？