it, five years, since, has, joined, he, been, the army
____________________.
never, he, has, met, problem, this
____________________.
ever, have, the, you, heard, story
____________________?
have, I, for, been, years, here, ten
____________________.
Every year, thousands of tourists from all over the world come to v1. the Great Wall.
Last Saturday I went to the Great Wall w2. some of my friends. On our way up, we saw many volunteers keeping working in the sun. They helped the elders with their bags, took photos for some tourists 3. answered people's questions. We were 4.(deep) moved when we saw this.
Just when we finished one 5.(three) of the way, we saw 6. little boy standing alone and crying. We asked what happened to 7.(he). From his answer we knew that he couldn't find his mother. We told him not to worry about it and then we tried to get in touch with his mother. Twenty minutes later, his mother turned up. When she saw her son, she was very 8.(excite) and thanked us with tears in her 9.(eye).
That day we not only enjoyed the beauty of the Great Wall, but also felt the 10.(warm) of the society.
One of the hottest places on the earth is Death Valley. It's a desert valley in North America.
The animals in Death Valley don't use technology to keep cool. They have special abilities that help them live there.
The kangaroo rat (更格卢鼠) is one animal that lives in Death Valley. During the day in Death Valley, it gets hotter than 100°F. The kangaroo rat rests all day in a hole in the ground. It covers the hole with grass to keep out the heat. The kangaroo rat comes out at night when it is cooler. This little rat is also very good at conserving (节约) water. It gets all the water it needs from the food it eats. Some kangaroo rats never take a drink of water in their whole lives!
The sun makes the desert sand very hot. Animals, like snakes, get too hot if they lie on the hot sand too long. One snake, called the sidewinder (响尾蛇), can solve this problem. When it travels, the sidewinder bends its body into a "W" shape. Then it uses the bottom parts of the "W" like legs and walks sideways. That way it touches only a little of the sand at a time, so the hot sand doesn't burn the snake. This strange way of moving is how the sidewinder gets its name.
Most of water in the desert is too salty for most animals to drink. All water has some salt in it. As the desert heat dries up pools of water, the salt is left behind. The remaining water in these pools can be much saltier than the ocean. One kind of fish, the desert pupfish, can live in these salty pools because it can drink the salt water.
1.完成句子：The animals in Death Valley have ____________ that help them live there.
2.简略回答问题：Why does the kangaroo rat cover the hole with grass?
____________________
3.简略回答问题：What kind of shape does the sidewinder bend itself into?
____________________
4.找出并写下第三段的主题句：
____________________
5.将文中画线句子译成汉语：
____________________
