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 lamp,???? __9__
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 ."

答案詳解:
1.While-When或After.本句的this指代的是to change the weather by using magic. when/after 引導時間狀語
r是early的比較級,其后應(yīng)有than
之后加引導定語從句
4. 刪除advance前的 advance為習語
5. connection with 為習語
6. controlled-controlling或在controlled前加that/lling the weather 或that/which controlled the weather做定語修飾the actual factors
7. 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. 引導的是條件句用的是remained一般過去時來源