课文句子背诵：写在二卷答题纸相应位置上，写在其他地方该题不得分（共10分）(每空一词)
81. So whether life will continue on the earth for millions of years ①____ _____ will depend on whether this problem can be ② _______.
82.The universe began with a “Big Bang” that threw matter ③_____ ______ ________.
83. She is ④______ a busy life but she says : Once I stop, it all comes ⑤_______ ________ and I remember the chimps in laboratories.
84. ⑥_________ reading made me realize that it was hard work and determination as well as her
⑦_______ ________ that got her into medical school.
85. They went through a ⑧________ province and saw farms that ⑨ _________thousands of acres.
After dinner, they were back in an ⑩_______ area , the busy port city of Thunder Bay at the top of the Great Lakes.
