1. With annual rainfall close to zero, Antarctica is technically a desert.(P2)

　　南极洲降雨量几乎为零，严格说来该区域就是一片荒漠。

　　★With annual rainfall close to zero是"with＋宾语＋宾语补足语"结构，在句中作状语。with 复合结构常见的形式有：

　　①The boy always sleeps with his head on the arm.

　　这个男孩总是头枕着胳膊睡觉。

　　②With so many people talking_and_laughing,_I couldn't settle down to my work.

　　有那么多人又说又笑，我无法静下心来工作。

　　③With_all_my_work_finished,_I went out to play.

　　所有的工作都做完了，我就出去玩了。

　　2. Antarctica holds 90% of the world's ice, and most of its fresh water (70%) is in a frozen state, of course.(P2)

　　南极洲拥有世界90%的冰，当然其大部分淡水(70%)都处于一种冰冻状态。

　　★state n. 状态；状况；国家；州 vt.规定；声明；陈述

　　写出下列句中state的含义

　　①Railways in China belong to the state. 国家

　　②He stated that he had never seen that man.声明

　　 in a(n) ...state　　　　　　处于......状态

return to normal state 恢复到正常状态

　　③The old house is in_a_bad_state now and needs repairing.

　　这座老房子现在状况不好，需要修缮。

　　④After three hours' hard work, the electricity supply eventually returned_to_normal_state.

　　在三个小时的努力工作后，电能供应最后恢复了正常。

　　3. Yet Antarctica is full of wildlife, which has adapted to its extreme conditions.(P2)

　　但南极洲仍然栖息着很多野生生物，它们已经适应了那里极其恶劣的条件。

　　★adapt to (使)适应；改编；改写

①Our bodies adapt to everything we do to them.