1.what happened in the poor boy's life made me very emotional.
2.so all the kids are going to shanghai to attend the shanghai expo.they are all very excited about it and can't wait to go.
3.we are engaged in some charity event to help the people in the southern part of china that has been devastated by some natural disaster.they need clean drinking water.so we asked people to donate bottled water to be sent to the people in need.
remember,there is a difference between explain and paraphrase.i'm not sure what you want.without proper context the best one can do is paraphrase.hope this is what you need.