A.popular              B.when             C.at all

D.interests            E.pick up               F.in all

    Do you know what gifts Western kids enjoy best? How do they give them? Let's have a quick look.The most ____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 ____pretty beads (串珠) in DIY shops and put them together in their own way.

    US kids give gifts according to their friends' ____. 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 ____.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 ____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.

克隆羊多莉长得非常像（    ）

阅读理解

如图（1），在正多边形A₁A₂A₃…A_n的边A₂A₃上任取一不与点A₂重合的点B₂，并以线段A₁B₂为边在线段A₁A₂的上方作以正多边形A₁B₂B₃…B_n，把正多边形A₁B₂B₃…B_n叫正多边形A₁A₂…A_n的准位似图形，点A₃称为准位似中心．

特例论证

如图为地球公转示意，回答下列问题．