玲玲小朋友站在地球上的位置是（20°N，0°），她所在的半球是北半球西半球。

根据短文内容，选择最佳答案。

    Do you know what the White House is? Perhaps some of you do，while others don't.

    The White House is a house in Washington. The president of the U.S.A. lives in it. It's really white. But do you know why the White House is white? The story happened in 1812. That year England was at war with America. The British army got to Washington and set the president's house on fire. In 1814，in order to hide the marks of the fire，the stone walls of the president's house were painted white and it has been the “White House” ever since.

下面细胞器中能合成有机物的是（）

①核糖体②线粒体③内质网④高尔基体⑤叶绿体．

填入下面横线处的句子，排列顺序最恰当的一项是（   ）（2分）
进入天山，戈壁滩上的炎暑就远远地被撇在后边，迎面送来的雪山寒气，立刻会使你感到像秋天似的凉爽。             。当这个时候，饮马溪边，你坐在马鞍上，就可以俯视那阳光透射到的清澈的水底，在五彩斑斓的水石间，鱼群闪闪的磷光映着雪水清流，给寂静的天山添上了无限的生机。
①蓝天衬着高矗的巨大的雪峰，在太阳下，几块白云在雪峰间投下云影，就像白缎上绣上了几朵银灰的暗花。
②这飞泻下来的雪水，在山脚汇成冲激的溪流，浪花往上抛，形成千万朵盛开的白莲。
③那融化的雪水，从峭壁断崖上飞泻下来，像千百条闪耀的银链。
④可是每到水势缓慢的洄水涡，却有鱼儿在跳跃。

写作。

题目：《我的亲人》

你一定有你最喜欢的亲人，写一写你最喜欢的她（他）吧！