济宁农民刘大成获得了2010年度星光大道年度总冠军,为济宁市人民争了光。如图所示,是他在表演用树叶演奏美妙的音乐,他是靠改变树叶振动的_________改变音调的。
频率
句型转换,一空一词。
1. Frank has a new watch and a nice bike. (改为否定句)
Frank ______ ______ a new watch ______ a nice bike.
2. What are your parents' jobs?(改为同义句)
______ ______your parents ______ ?
3. My brother want to be a soccer player. (就画线部分提问)
______ ______your brother want to be?
4. It's windy in Wuhan.(就画线部分提问)
______ the ______in Wuhan?
5. Tom often gets to school early. (用现在进行时改写)
Tom ______ ______ to school early.
正常胎动每小时()次。