短文填词：（共10小题，每题1分，共10分）
It is said that each year China consumes 15 billion lunch           
boxes, _______which over a half are not qualified products.          1._______
These cheap lunch boxes pose threat to h_______. They                     2.______
contain ________(有毒的) chemicals, which could harm human     3.______
digestive and nervous systems, and even _______ cancers. Experts          4.______
suggest that consumers take their own table-ware _____ them rather      5._______
than use that _______(提供) by restaurants. If you really need to                 6._______
use a restaurant lunch box, _______ carefully first. Those which           7._______
break or leak easily, or smell t_________ are not suitable for you       8._______
to use them _______your lunch container. If you are careful about      9.______
what you eat your lunch from , you will also do your part in p____          10.______
our environment at the same time.