need to do意思是“需要做……”。
此时,need随主语的人称和数的变化而变化。如:He needs to get up early. 他需要早起。
need doing=need to be done 意思是“需要被……”,
如:My watch needs to be repaired. 我的手表需要修理。
.Example: He needs to go to the hospital. 他需要去医院。
.Example: She needs to get some rest. 她需要休息。
.Example: My hair needs washing badly. 我的头发非常需要洗一洗。
.Example: Pets need to be taken out for a walk every day. 宠物得每天带出去遛一遛。