專八改錯練習(xí)第二十四篇：

Ancient man attempted to change the weather by using
magic. While experience taught him this was impossible, __1__
he tried to forecast weather conditions. Even earlier in __2__
1000 were weather seers in Babylon----and
priests clever enough to denounce as frauds those predicted__3__
the weather a year in the advance. Some forecasters used__4__
methods that seemed to take no connection with the actual __5__
factors controlled the weather. Chickens and other animals __6__
were sacrificed and their intestines poked to find signs
indicating rain and drought. Somewhat more scientific were __7__
predictions based on vegetation:"Onion's skin very thin ,mild
weather coming in. Onion's skin thick and tough, coming
weather is cold and rough." Insects and animals were also __8__
favorite weather clues: "Before the glowworm lights his __9__
lamp , then the air is always damp ." "If spiders their cobwebs
forsake , the weather will for certain break ." "If frogs remained
in pools , the weather will be fine . If they were seen on rocks, __10__
rain and cold were due." It's difficult to say whether this rhyme
should be taken seriously : " Hark , I hear the asses bray . Me thinks
we'll have some rain today ."

答案及解析(反白可見):

1.While—When或After
本句的this指代的是to change the weather by using magic. when/after 引導(dǎo)時間狀語

earlier是early的比較級，其后應(yīng)有than

之后加who
who引導(dǎo)定語從句

4. 刪除advance前的the
in advance為習(xí)語

5. take—have
have connection with 為習(xí)語

6. controlled—controlling或在controlled前加that/which
controlling the weather 或that/which controlled the weather做定語修飾the actual factors

7. and—or
rain和draught只能是二者之一

8. 刪除is
與上文平衡，均為省略句

9. before—when/if
條件句

10. will—would
if引導(dǎo)的是條件句用的是remained一般過去時