某校研究性学习小组同学对经初步净化处理的浓缩海水(主要含NaCl和MgSO4)进行研究。
（1）实验时若需要配制1 000 mL 0．20 mol·L-1NaOH溶液，则需要称量固体NaOH的质量为 g。
（2）取初步净化处理的浓缩海水100 mL，加入200 mL 0． 20 mol·L-1NaOH溶液，恰好把其中的Mg2+完全沉淀，则浓缩海水中Mg2+的物质的量浓度为 。
（3）研究小组同学把上述沉淀完全转化为无水MgCl2，并在熔融状态下进行电解，可得标准状况下Cl2的体积为 L。
阅读下面材料，在空格处填入适当的内容（1个单词）或使用括号中单词的正确形式。
Jane: Hi, Leo. You seem tired and sleepy today. Are you OK?
Leo: Oh, my neighborhood is so ______ (noise)—I can’t sleep much.
Jane: What’s going on in your neighborhood?
Leo: The road near my home ______ (repair), and that makes a lot of noise. That’s____
___ I can’t sleep well at night these days.
Jane: Is it really loud?
Leo: Oh, it’s terrible! ______ (hope), the construction won’t last long.____
___ they don’t finish the road soon, I’m afraid I’m going to go deaf.
Jane: Oh, that’s awful. How about your neighbors? Are they quiet and friendly?
Leo: Yes, most of them are. But one of my neighbors, David, ________ holds parties every night, won’t stop making noise. Being exposed____
____ so much noise day after day really drives me mad!
Jane: It’s no use just________ (complain). Why not hold a neighborhood meeting? I’m sure you could come up with some good __
____ (approach).
Leo: That’s a good idea. Why didn’t I think of that? _______ seems that I haven’t got a brain in my head these days.
阅读下列材料，在空白处填入适当的单词或用括号内单词的正确形式填空。
There once was a man who (be) blind from birth! He owned a fruit stand on a very busy street.
One day his only son came to him told him that he had read a new discovery in the newspaper
they could operate on his eyes. The father and his son traveled to the doctor and paid for the operation.
The doctor asked the man the operation, “ What is the first thing you want to see when I take the bandages(绷带) off?”
The blind man replied, “ I want to see my (beauty) fruit on my stand!”
The doctor and the son led the man to busy street where his fruit stand was located. They
(careful) unwrapped the bandages. The man was so happy to see his life’s work taking care of his fruit!
After a few hours of enjoying his beautiful fruit stand, looked down at the street both ways and saw there were quite a few fruit
(stand) in both directions. He looked across the street and saw other fruit stands. He spent so much time
(look) at other fruit stands that he failed in his business!
阅读下面材料，在空白处填入适当的内容或括号内单词的正确形式。
Last Friday a storm swept through two villages in the New Territories, (destroy) fourteen homes. Seven others were so badly damaged
their owners had to leave them, and fifteen others had broken windows or roofs. One person was killed, several were
(serious) hurt and taken to hospital, and a number of other people received smaller hurt. Altogether over two hundred people were homeless after the storm.
A farmer, Mr. Tan, said that the storm began early the morning and lasted for over an hour.
“I (eat) with my wife and children when we heard a loud noise” he said, “ A few minutes later our house fell down on top of us. We tried our best
(climb) out but then I saw that one of my children was
(miss). I went back inside and found him, safe
very frightened.”
Mrs. Woo Mei Fong said that her husband had just left for work when she (feel) that her house was moving. She ran outside at once with ___
_children.
Soldiers helped to take people out of the flooded area and the welfare department brought them food, clothes and shelter.
阅读下面材料，用不多于1个单词的正确形式填空（每小题1.5分，15小题；30分）
Once a farmer's donkey (驴) fell into a deep well. The animal cried loudly for hours, but the farmer couldn't figure out what to do it. Finally, he decided that the animal was old and that the well needed to be covered anyway, so he
(think) the donkey wasn't worth saving.
Then, he invited some of his neighbors to come over and help . They all took a shovel (铁铲) and began to put dirt into the well.
At first, the donkey realized what was happening and cried (pitiful). Then, to everyone's surprise, the donkey became quiet. A few shovel loads later, the farmer looked down into the well and was astonished at
he saw.
Each shovel of dirt hit its back, but the donkey was doing something (amaze) . It was shaking the dirt off and taking a step up.
the neighbors continued to put more dirt on top of the animal, it would shake the dirt off and take one more step up.
Pretty soon everyone was surprised as the donkey stepped up over the edge of well and ran off happily!
When life sometimes ( put) dirt on you, the best way of getting out of the well is to shake the dirt off and take a step up. Each of your troubles is a stepping stone. You can get out of die deepest well just
never giving up!
It has become acceptable for people to say that women work less than men and therefore deserve less! It may have been true in the past when women were expected to stay at home and look after children, but women have changed over the years. They have “come out”! Gone ______ (be) the days when they toiled (辛苦) the kitchen stove all day long; they are now aware of their needs and are willing to fight for them. They expect to be given the respect they deserve, both at home and at work. They have realized
_____ intellectual potential and have determined to do something about it!
Women on two wheels have become ______ familiar sight on the roads of most Asian countries during the past few years. It is common to find a woman
______ (take) her children on her bicycle to school and then reaching her office in time.
“Super woman” ______ she is, it is rather difficult to combine a career and a decent home life. She needs to feel
______ (support). She may arrive at work feeling as if she has already done a full day’s job.
______ colleagues doubt her passion to her job, she will feel sad. At the same time, women of today expect their partners to contribute towards childcare and household chores.
Today’s women are learning to avoid situations that make them feel more stressed and it is a hard struggle. ______ ______ ______all this, the new woman, “the superpower” has arrived. She still believes in the power and value of a family unit and she holds it in high esteem (尊重).
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