题目

2011年汕头市实现生产总值(GDP）为人民币1218亿元，这个数据用科学记数法（保留三个有效数字）表示为 （ ） A . 元 B . 元 C . 元 D . 元 答案：AA.popular B.when C.at allD.interests E.pick up F.in allDo you know what gifts Western kids enjoy best? How do they give them? Let's have a quick look.The most 【1】gifts are fashionable things like the new video games, CDs and DVDs. A video game costs about US$60 and CDs or DVDs are cheaper at around US$20.Girls like to give jewellery (宝石) they make themselves. They 【2】pretty beads (串珠) in DIY shops and put them together in their own way.US kids give gifts according to their friends' 【3】. Puzzles or airplane models are good for smart kids.But if you are not sure what others will like, you can give them "gift certificate cards (授权卡)" from a store. They can get whatever they like with the cards. The cards can be worth US$20 or US$30 【4】.Usually parents help the kids buy the gifts that they want. So they can make the right decision.Before the parties, kids usually wrap the gifts in colourful paper. It's also fine to use newspaper as gift wrap.So 【5】to open the gifts? In the West, it's usually while everyone is at the party. The receiver (接受者) tries to say something about each gift - like how lovely it is.