随堂演练
及时体验 巩固提升
Ⅰ.单句语法填空(不多于3个单词)
1．He ________ (write) just one novel so far.
答案与解析 has written so far意为“到目前为止”，是完成时态的时间状语。
2．Now that she is out of a job, Lucy ________ (consider) going back to school, but she hasn't decided yet.
答案与解析 has been considering 根据“but she hasn't decided yet”判断，Lucy还在考虑这件事，要用现在完成进行时，表示动作还要继续下去。
3． More patients ________ (tre at) in hospital this year than last year.
答案与解析 have been treated treat与patient是动宾关系，应用被动语态；this year是表示现在时间的状语，所以应用现在完成时的被动语态。
4．The first use of atomic (原子的) weapons was in 1945 and their power ______ __ (increase) enormously ever since.
