根据短文内容及首字母提示，填写所缺单词，使短文意思完整。
阅读短文，从方框中所给的六个句子中选择五个还原到短文中，使短文通顺完整、衔接自然。
March 20th is World Water Day every year. According to a report from the United Nations, more than half of the world's major rivers have serious water loss and are polluted.The Yellow River, the world's fifth longest river, watered some of the oldest farms on earth. But now it has a serious problem. 1.In most of the past 35 years, it didn't reach the sea.The Nile in Egypt, running 6, 650 km, is the longest river in the world. 2._ Now it is down to 2 billion m' or so. Australia's Murray River reaches the sea only every other year. One fifth of America's Rio Grande has no water, either. 3._Mostly it's damming (筑坝) and global warming that make rivers dry.
4. Now about 45, 000 of them lie across the world's rivers. They hold back around 15% of the world's fresh water from running to the sea.Global warming is making things worse. Warmer weather takes water away. The glacier (冰川) are becoming smaller. 5.Global warming has had certain effects on water sources (源头). Droughts (干旱) happening around the world make people pay more attention to this fact.
写出各单词的正确形式；每空只写一词。
Reading is an activity people enjoy a lot in their free time.
Some like reading newspapers and o1. enjoy novels or comic(喜剧的) books. My f2._books are those about the lives of great people. Reading them always gives me a lot of ideas on how to make my o3. life better.
Great people are remembered not because they were handsome or beautiful, but because they did not give up w4.their lives were difficult. They tried to use e5. chance to change their lives and make the world better.
One good example is Orville and Wilbur Wright, the two brothers w6. invented the airplane. The plane has m_7. the world into a small village. Hard work, not good luck, is the r8._ why the Wright Brothers could invent this convenient(方便的) machine and become great people. Today we will remember them when we see planes i9. the sky.
Whenever I read s10. about great people, I always learn a lot from them and they encourage me to march on.
This is why I enjoy reading about great people’s lives.
—Mom, shall we have supper now?
—Oh, we won’t have supper ______ your dad comes back.
A. until B. since
C. while D. after
Mr Zhang is a kind teacher. He devotes much of his time _________ us with English.
A. to help B. helps
C. help D. to helping
My father has worked there ___________.
A. since five years B. since 2005
C. since ten years ago D. B&C
_______ fine day it is! Let’s go and fly a kite.
A. What B. What a
C. How D. How a
