ⅰ.单词拼写 1．the biggest problem i have to face is the language________(障碍) when i go abroad. 2．he slowed the bleeding by applying pressure to the wounds until the police and an________(救护车) arrived. 3．the________(复杂的) operating systems of computers are difficult for some aged people who lack knowledge about computers. 4．his rude behaviour is________(无法忍受的) to his classmates，so he makes few friends in his class. 5．liu xiang’s________(受伤) in his foot prevented him from participating in the 2008
