一.仔细阅读听力题，找出重点单词、短语和句型。在听力材料中勾画出生词、短语、句型和交际用语，并结合语境猜测其含义。
1.hunger_________2.homeless____________3.sign________4.advertisement______
_5.establish___________________6.clean up _____________7. cheer up ________________8. give out _______________9. put off _______________
10. put up __________________11.set up ____________
