试题与答案

立方氮化硼和镏金刚石磨粒都属于立方晶系，因此硬度较高。

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题型：判断题

题目：

立方氮化硼和镏金刚石磨粒都属于立方晶系，因此硬度较高。

答案：

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参考答案：列出问题点并作成问题点一览表；决定问题点的重要度；依重要度决定活动题目；陈述活动题目选定的理由。

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题型：阅读理解

阅读理解。

     If I were writing a history of my family, some of the darkest moments recorded would be those about

Christmas trees. One would certainly think otherwise; selecting and putting up our trees have always been

filled with risk. For example, one afternoon dangerously close to Christmas Eve my mother bought what

she thought to be a bargain, a glorious tree that was so full and tall that we could hardly get it into the house.

Once we did, my father immediately realized that we would have to hire a carpenter (木匠) to build a stand

for it. Another December, perhaps the very next one, we bought a tree earlier than we ever had before. We

were happy with its shape and delighted that its size was manageable. We easily placed it in a stand, decorated

(装饰) it from top to bottom, and then self-satisfiedly sat back by the fire in its soft light. Two or three days

passed and the truth could not be hidden; we had bought a tree cut so long ago that its needles were coming

off. There was nothing to do but undecorate it, take it down, and begin tree shopping again. Our most recent

Christmas tree offered still another difficult task. When we brought it home, once again it seemed larger than

it was in the great outdoors. To complicate matters, we had bought a new stand, one whose nuts (螺帽) and

bolts (闩子) worked more mysteriously than those of our old stands. I persuaded two young neighbors to stop

playing basketball and to help us get the tree into the house and set it correctly in the stand. Unfortunately, no

one noticed the mud on our helpers' shoes, so only after removing several reddish brown spots from the carpet

were we able to discuss the question of where the lights and ornaments (装饰物) were stored. Perhaps those

who cut their own trees have tales more painful than these. I don't care to hear them, as my family's

experiences are enough to cause me to make the following suggestion:"Let's forget the tree next Christmas.

Let's simply hang some flowers on the front door and over the mirror in the hall."

1. The darkest moments in the writer's family were with the fact that _____.

A. the family bought big Christmas trees

B. they had problems decorating their Christmas trees

C. they had problems picking suitable Christmas trees

D. they had problems finding carpenters for putting up Christmas trees

2. We can learn from the passage that the writer would like to _____.

A. forget about Christmas stories

B. get the neighbors to put up their trees

C. buy a better tree to celebrate Christmas

D. make other decorations rather than Christmas trees

3. When the writer said "my mother bought what she thought to be a bargain", he means _____.

A. she bought the tree at a cheap price

B. she didn't really want to buy it

C. she had to bargain hard with the salesman

D. she couldn't afford a more expensive one

4. Which of the following can be the best title for the passage?

A. How to Choose a Christmas Tree

B. No More Christmas Tree for Us

C. Dark Moments of Life

D. Christmas Without Trees

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