Prep Test1-138

[kotokolin]

According to scientists at the University of Alaska, while the surface temperature of the globe has risen over the last century by about one degree Fahrenheit, the surface temperature in Alaska, Siberia, and northwestern Canada has increased in the previous thirty years by about five degrees.

(A) the surface temperature in Alaska, Siberia, and northwestern Canada has increased in the previous thirty years by about five degrees
(B) the surface temperature in Alaska, Siberia, and northwestern Canada has increased over the last thirty years by about five degrees
(C) there was an increase in the last thirty years by about five degrees in Alaska, Siberia, and northwestern Canada
(D) it had increased in Alaska, Siberia, and northwestern Canada by about five degrees over the previous thirty years
(E) it has increased in Alaska, Siberia, and northwestern Canada over the previous thirty years by about five degrees





答案B

考時態: while引導的子句為has risen, 預期逗點後沒有看到since就要找現在完成式, (C)(D)時態不對
考代名詞: (D)(E)的it指誰?

(A)和(B) 長的很像, increased in the previous thirty years V.S. increased over the last thirty years
當初我硬是想和前一句over the last century平衡, 不太能確定句意哪個對, 所以選了(B)

請教大家A的問題在哪~ 乾溫呀~

[dibert8]

(A) (D) (E) 的 previous 指啥? 句子裡毫無線索.
i.e. previous 30 yrs: 哪一個30 yrs?

[zephyr_h]

參考CD的PP破解筆記
(A)in the previous 30 yrs -->搭配簡單過去式即可
(B)over the last 30 yrs 才有during 整個30 yrs的感覺，可以搭配have Ved

[dibert8]

考 although/while 的對稱結構,這也是值得硬梆梆比較的:
while
the surface temperature of the globe has risen over the last century by about one degree Fahrenheit
the surface temperature in Alaska, Siberia, and northwestern Canada has increased over the last thirty years by about five degrees

[hwatai]

prep 1-138 / 151

考點相同

只要留意未畫線的地方，就可以發現完美的對稱結構

不然可能會陷在二選一的僵局之中