Ⅱ.补全信息
选择正确选项填入空白处，补全所给句子提供的信息。
A．to record its migration and make sure that there are enough plants for it to feed on
B．to measure the position of the sun
C．to find food，seek a partner，or in search of warmer weather
D．where the sun is in the sky
E．where it will spend the winter
F．where the butterfly can be found
1．These two pieces of information—the time of day and the point ________—allow the butterfly to determine the way to go.
2．Eventually，the monarch butterfly manages to reach the places ________．
3．Many animals migrate ________．
4．The monarch butterfly uses its eyes ________．
5．People have been working together ________．
[答案] 1－5 DECBA
