课文句子背诵。

1. So whether life will continue on the earth for millions of years ①______ ______ will depend on whether

    this problem can be ②______.

2.The universe began with a"Big Bang" that threw matter ③______ ______ ______.

3. She is ④______ a busy life but she says: Once I stop, it all comes ⑤______ ______ and I remember the 

    chimps in laboratories.

4. ⑥______ reading made me realize that it was hard work and determination as well as her ⑦______ ______ 

     that got her into medical school.

5. 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.