【正文】
many times, he continued (do) the experiment. 答案 : 1. shot 2. to open 3. to do 4. The Smiths visited the Science Museum instead of (swim). 5. As soon as Jack (finish) his homework, he will go out to play basketball. 答案 : 4. swimming 5. finishes Ⅱ . 完成句子 1. 天開始下雪了 , 孩子們都很興奮。 It _______ _______ snow。 the children were very excited. 2. 杰克星期天沒有去看電影 , 而是去游泳了 。 Jack went swimming on Sunday _______ _______ seeing a film. 答案 : 1. began to 2. instead of 3. 如果你想要成功 , 你就應該繼續(xù)嘗試并且永不放棄 。 If you want to succeed, you should and never give up. 4. 你看起來有點兒累了 。 You look tired. 5. 除非我被邀請 , 否則我不會參加晚會 。 I go to the party I am invited. 答案 : 3. keep trying 4. a little bit 5. won’t。 unless