3 . The teacher suggested we do the exercises with great ________ though they were easy.

A．caution

B．check

C．capability

D．challenge

8 . 阅读下面材料，根据其内容和所给段落开头语续写两段，使之构成一篇完整的短文。

“ Rachel Pettingill! ”

As Truman came home from school, he repeated the name in his head. Throughout third grade and the year before, Rachel Pettingill had earned the highest science grade in the class. Truman was used to being second best.

“ But science is my thing, ” he declared.

Truman’s parents were scientists, and he would be a scientist. That was just a fact. Somehow, with only one week and one assignment left before break, they were neck and neck. Dead even.

The subject of the project was beehives (蜂窝). As his teacher had explained, to earn an A+, he needed a “ new angle. ”

Truman pushed open the front door to find his four-year-old brother, Bryan, playing his paper towel tubes on the living room floor, hard at work.

Bryan leaped to his feet. “ Truman, help me build a city! ”

“ I’d like to, but I have to do a report on beehives. Bryan. Sorry. ” Truman stepped carefully between the tubes. He went to his room, dropped onto the bed, and studied the ceiling.

“ Rachel Pettingill! ”

Her report would be extraordinary.

“ Truman? I know where there’s an old beehive. ” Bryan poked his head in. “ Follow me. ”

They marched to the firewood. Bending down, Bryan pointed out the hive deep inside the tree. Truman carefully removed the hive from its hole.

Back in his room, Truman sat at his desk, turning the delicate hive under a lamp. Each cell was a perfect hexagon (六角形). How did the bees fit the cells together so neatly? And how did they make each cell six-sided? Could they count?

“ Boys, dinner’s ready! ” his mother called.

As he walked to have dinner, his foot came down on something strange.

“ Truman! You’re ruining my city! ” Lost in thought, Truman hadn’t seen Bryan settle in behind him with a mess of paper tubes. Bryan began to cry. Loudly. He gathered an armful of his tubes, threw them into a sink and ran sobbing into the living room.

Truman sighed and gathered the rest of the tubes in both hands.

注意：
1.所续写短文的词数应为150左右；
2.至少使用5个短文中标有下划线的关键词语；
3.续写部分分为两段，每段的开头语已为你写好；
4.续写完成后，请用下划线标出你所使用的关键词语。
Paragraph 1:

As he held the tubes over the wastebasket, they suddenly reminded him of something.

___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Paragraph 2:

Truman ran to the living room and gave his brother a big hug.

___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

9 . When I was a practice teacher in a middle school，the students in my class were always making ______，and had no interest in chemistry. So I decided to do ______to change their______ towards chemistry.

The evening before I would teach all by myself，I gave a piece of paper to everyone. I told them to write ______ they wanted on the paper and handed it in and then I could tell what each one had ______ .All the students said I _____ be longsighted(远视)．Then I stood ______ my back towards them. I didn't turn back ______ they had finished and ______ all the paper in a cardboard case.

I turned the cardboard case with the bottom(底部)towards the students，and told them calmly what each one had written on the paper. The students were surprised，______ that I had learned their ______ completely in such a short time.

I told them the truth and they were ______ at my brightness：there were five lines of students in the classroom，and every line had ten students. I had written serial number(from 1 to 50 )on every ______ of the paper in a chemical reagent(试剂)that cannot be seen ______eyes，and then gave ______out to the students according to the groups of their seats. After the paper was ______ in，I used______ chemical reagent onto the corner of the paper. Thus the serial number was ______！

______ ，the students became ______ interested in chemistry，and we became good friends.

1.

A．progress

B．troubles

C．faces

D．efforts

2.

A．something

B．nothing

C．all

D．them

3.

A．methods

B．attitudes

C．feelings

D．interest

4.

A．that

B．how

C．when

D．what

5.

A．thought

B．seen

C．written

D．heard

6.

A．would

B．needed

C．had to

D．might

7.

A．with

B．for

C．to

D．as

8.

A．after

B．when

C．until

D．now that

9.

A．put

B．left

C．had

D．gave

10.

A．knowing

B．believing

C．seeing

D．hearing

11.

A．names

B．faces

C．characters

D．handwritings

12.

A．frightened

B．angry

C．sad

D．amazed

13.

A．corner

B．bottom

C．top

D．side

14.

A．in

B．for

C．with

D．to

15.

A．it

B．that

C．them

D．those

16.

A．given

B．handed

C．passed

D．offered

17.

A．expensive

B．useful

C．another

D．smelly

18.

A．made

B．seen

C．found

D．looked

19.

A．From then on

B．However

C．Though

D．So far

20.

A．a lot of

B．a lot

C．partly

D．greatly