3(2019全国I卷)Modem methods of tracking polar bear populations have been employed only since the mid-1980s, and are expensive ___ (perform) consistently over a large area. 4[2019·新课标I卷·语法填空]Modem methods ___63___ tracking polar bear populations have been employed only since ...
1[2019·新课标I卷·语法填空]Modem methods ___of__ tracking polar bear populations have been employed only since the mid-1980s, and are expensive ___64___ (perform) consistently over a large area. 2【2019·新课标I卷·语法填空】Modem methods___tracking polar bear populations have been emp...
˙再分析句子成分,主语是“modern methods of tracking polar bear populations”,其中中心词是of之前的“methods”, 为复数所以用have, 且methods和动词employ 之间是被动关系(方法被采用),所以要用被动语态。故本题的答案为have been employed. 反馈 收藏 ...
(1)Modern methods ___of__ tracking polar bear populations have been employed only since the mid-1980s, and are expensive (perform) consistently over a large area. (2)On the last day of our week-long stay,we _were invited__(invite) to attend a private concert on a beautiful farm on...
(1) Modern methods of tracking polar bear populations have been employed only since the mid-1980s, and are expensive to perform ( perform)consistently over a large area. 相关知识点: 试题来源: 解析 答案见上to perform 句意:跟踪北极熊数量的现代方 法只是从20世纪80年代中期以来才开始采 用,并且...
题目.用所给词的正确形式填空Modern methods of tracking polar bear populations have been employed only since the mid-1980s, and are expensive ___(perform) consistently over a large area. 相关知识点: 试题来源: 解析 to perform 【核心短语/词汇】: methods of doing sth 做某事的方法;since+一段...
【题目】单句语法填空1. Modern methods of tracking polar bear populations have been employed only since the mid 1980s, and are expensive ___(perfurm) consistently over a large area.2. Scientisis have responded by (note) that hungry bears may he congregating(聚集)around human settlements...3...
Modern methods of tracking polar bear populations___(employ) only since the mid-1980s.相关知识点: 试题来源: 解析 have been employed 答案:have been employed.methods与employ之间是动宾关系,根据状语since the mid-1980s要用现在完成时的被动语态。故填:have been ...
12. Modernmethods for tracking polar bearpopulations(employ) only since themid-1980s, andareexpensive to performconsistently over a large area.(2019全国I,语法填空) 2【题目】语法填空(2019·全国I卷语法填空改编)Modern methods oftracking polar bear populations(employ)onlysince the mid-1980s, and ...
Modern methods of tracking polar bear populations have been employed only since the mid1980s,and are expensive to perform(perform) consistently over a large area. 相关知识点: 试题来源: 解析 perform意为"实施执行",是动词。此处是"主语+be+adj.+不定式"结构,不定式用主动形式表示被动含义。故填:...