1 . Finally, let’s work together _________ (save) energy and protect our _________ (nature) environment. (所给词的适当形式填空)

2 . The same goes for________(nature) fibers;…（所给词的适当形式填空）

3 . This proverb is saying we have to let things go in their ________ (nature) course. （所给词的适当形式填空）

4 . I love cooking, so it’s very ________ (nature) for me to share the food 1 make with my family and friends. （所给词的适当形式填空）

5 . It is hoped that ________(nature) resources will be found on Mars. (所给词的适当形式填空）

6 . As ________ (nature) architects, the Pueblo Indians figured out exactly how thick the adobe walls needed to be to make the cycle work on most days. (所给词的适当形式填空)

7 . I want to experience some Chinese culture and ______(nature) beauty there. (所给词的适当形式填空)

8 . It is hoped that ________(nature) resources will be found on Mars in the near future. (用所给词的适当形式填空)

9 . ________ (nature) food is good for our health. (所给词的适当形式填空)

10 . Honest is a ________ (nature) quality (品质). (所给词的适当形式填空)