1、用所给词的适当形式填空
1.They’repreparingforaclass_____abouttheoceans.(compete)
2.Peopleuse____tocleantheirteeth.(brush)
3.NowShanghaihasbecomeoneof________citiesinChina.(beautiful)
4.Doyouthinkdolphinsare_____(intelligence)
5.Watercoversalmostthree________oftheEarth.(quarter)
2、按要求改写句子
1.PeoplecansavetheEarthbypaintingmoretrees.(对划线部分提问)
__________PeoplesavetheEarth?
2.Theydon’thaveanybrothersorsisters.(保持句子意思不变)
They___________brothersorsisters.
3.Ireadbooksathomelastweekend.Ididn’tgoshopping.(保持句子意思不变)
Ireadbooksathome______-______goingshopping.
4.WhalesarelargerthananyotheranimalontheEarth.(保持句子意思不变)
Whalesare_________animalsontheEarth.
5.Wecansavewater.Don’tplaywatergames.(合并为一句话)
Wecansavewater____not____watergames.