water will make the fish in the pond       .

A．Polluting; die away                      B．Being polluted; die off

C．Polluted; die out                        D．Pollution; die down

Once upon a time a king, in the company of his ministers, went to the imperial garden for a walk. When he was walking around a pond, a strange idea 26 upon him and he asked, “How many buckets(桶) of water are there in the pond?” The ministers looked at each other,  27 to give an answer.
Rather 28 , the king ordered, “You have three days’ grace. Any one who offers an answer will be handsomely awarded. Those who fail will be 29 .”
The time limit was due in the twinkling（闪烁）of an eye, yet the ministers were still at their wit’s end. At this time a child appeared who declared that he knew the answer. The king told his 30 ministers to go with the child for the measurement. To their 31 , the child refused the suggestion with a smile, “It is very easy. No 32 to go to the pond.” This made the king laugh 33 ,  “Alright, let us know what it is.” The child winked (眨眼) and said, “That 34 on the size of the bucket. If it is as big as the pond, there is one bucket of water; if it is half as big, two buckets; if one third as big, three buckets; if...”“Stop! That’s it. You’ve got the 35 .” The king was satisfied and the child was duly rewarded.
Why did the ministers feel it so different to settle the problem? Because they fell in a pitfall (陷阱), following a wrong way of thinking. People’s thinking often goes a habitual way — the beaten track of straightforwardness. 36  is a static (静态的) way presupposing every object definite and certain, i.e. the size of the pond and the bucket should be clearly 37 . If one of them is unknown, it will be difficult to do the measurement, let alone 38 . Why not change your mode of thought — from static to dynamic（动态的）, from concrete to 39  ? If you adopt an indirect way and try to find out the proportional relation between the pond and the bucket, you’ll get an answer — flexible yet 40 to solve the problem.
Sometimes to get out of the difficulty one must change one’s way of thinking, or simply change one’s approach towards a problem.

MELBOURNE, Australia – A kangaroo frightened by a man walking his dog attacked the pair, throwing the pet underwater and hitting the owner in the stomach with its back legs. The Australian, Chris Rickard, was in stable condition Monday after the attack, which ended when the 49-year-old struck the kangaroo in the throat.

Rickard said he was walking his blue dog, Rocky, on Sunday morning when they surprised a sleeping kangaroo in Arthur's Creek northeast of Melbourne. The dog chased the animal into a pond, when the kangaroo turned and knocked the pet underwater.

When Rickard tried to pull his dog free, the kangaroo turned on him, attacking with its back legs and tearing a deep cut into his stomach and across his face.

"I thought I might take action to drag the dog out from under his grasp, but I didn't expect him to actually attack me," Rickard, 49, told The Herald Sun newspaper. "It was a shock at the start because it was a kangaroo, about 5 feet high, they don't go around killing people."

"I was stuck having to hold on to the dog with both hands because it was half drowned and I couldn't really see anything because the kangaroo just attacked me.”

He added, "All I could do was just keep pushing for the bank and he was trying to push me under the water, so at that point I struck him in the throat and that made him back off a little bit.

"I don't think I'll ever be able to watch kangaroo programs quite the same as I used to — it might bring back a couple of bad memories.”

Kangaroos rarely attack people but will fight if they feel threatened.

    Dogs often chase kangaroos, which have been known to lead the pets into water and defend themselves there.

Rickard said he ended the attack by hitting the kangaroo in the throat adding Rocky was "half-drowned" when he pulled him from the water.

1.Rickard and his pet dog were attacked when _________.

A. swimming in the pond                     B. he was teasing a kangaroo

C. he was walking his dog                    D. dragging his dog out from water

2.In Australia, kangaroos ________.

A. get along rather peacefully with people        B. are only seen in zoos

C. frequently attack people and pets             D. can be found swimming in ponds

3.The kangaroo attacked the man and his dog probably because ________.

A. the man struck it in the throat               B. it wanted to drown the dog

C. the man wanted to drown it                 D. the dog chased it

4.As a result of the attack, ________.

A. the kangaroo was killed

B. Rickard was left a deep impression

C. kangaroos should be under stricter protection

D. the dog was drowned dead

Dae Jon is the city in South Korea, where I was born and grew up. There was a public park there. It was a very popular place, and I have tons of precious (珍贵的) memories from times spent there.

Our teachers often took us to that park for a spring or fall picnic. When I learned martial arts (武术)—Tae Kwon Do, my master usually took us there to train us. There was a hill there which was not high, so I could reach the peak (山顶) within forty minutes even though I was very young. From the peak, I could see a lot of places if it was a sunny day.

There was a huge rock on the top called Eagle Rock because the shape of the rock looked like the head of an eagle. We spent lots of fun days there. We played hide-and-seek within the limited area, and we sometimes caught frogs and fish in the pond. When we felt thirsty, we enjoyed drinking cold spring water.

When I was a ten-year-old boy, I usually went to the park with my father to exercise early in the morning. It was quite dark, so I sometimes felt afraid, but after I got used to going there, I enjoyed breathing the fresh air and hearing the birds sing.

Recently, I went back to the park to remember my good times there. When I arrived at the entrance, I was surprised because it didn’t seem to be the same as I remembered it. Everything has changed in the thirteen years since I last saw it, but the good memories soon came back. I could almost imagine a boy playing there with a slight smile and shaking hands with me.

1.The writer went to the park with his teachers __________.

A. to read books                                                    B. to have a picnic          

C. to do morning exercises                                          D. to catch dogs

2.As a child, the writer did the following in the park EXCEPT __________.

A. practicing martial arts                           B. climbing the hill

C. swimming in the pond                                        D. playing hide-and-seek

3.How long has the writer not been there?

A. 10 years.                      B. 13 years.              C. 20 years.                      D. 23 years.

4.The writer went back to the park in order to __________.

A. meet his old friends

B. play with his old classmates

C. exercise with his father

D. remember his good times  

5.The writer was surprised when he got to the park because __________.

A. the park had changed a lot

B. his good memories didn’t come back

C. he didn’t see the boy with a slight smile

D. he couldn’t breathe the fresh air as usual

Go and ask for help．The bull got ________ in the pond．

1. A.
   sticking
2. B.
   caught
3. C.
   killed
4. D.
   stuck