化简，求值：(1x+2+1)÷x2-9x2+4x+4，其中x=4．
题型：解答题
问题：
化简，求值：(
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题型：解答题
阅读理解
As I was finishing seventh grade, my school decided to make some changes because of financial
(财政)problems. The school would make the classes bigger，so there could be fewer teachers. We
needed to write down the names of all my close friends.
I found out that none of my close friends were in any of my new classes. Also, my new classmates
were quite different from my old ones. I thought they weren’t as smart as my old classmates. They also
weren’t in the school activities I was in. I couldn’t find common interests with them .
As the year went on, I began to feel lonely and envy people in other groups. Why could they be with
all their friends? As I found out, they didn'
t 
have many friends at first. They had made new friends in their
new classes. They seemed pretty happy with their new friends.
I decided it was time for me to make new friends. I noticed that the people with many friends were
very active. They often talked to others first, while I was too scared to talk to others and hoped other
people would talk to me first.
Once I realized that, I found that making friends is very easy if you can accept people for who they
are, respect them, and talk to them. Now I feel a lot happier because I have more friends.
1. What problem did the writer have in the new classes?
A. He couldn't do what he used to do.
B. His classmates had no interests.
C. His classmates didn't want to talk to him.
D. He had no close friends in the class.
2. What does the word envy mean in this passage?
A. Hope to join other groups.
B. Wish to be in other people's situation.
C. Expect other people to come to him.
D. Want to share other people's interests.
3. What can we know about the writer?
A. He was an outgoing happy boy.
B. He can't get on well wit
h his classmates.
C. He was good at making friends.
D. He liked to take part in school activities.
4. From the reading, we can infer that ________.
A. there were fewer classes in the school
B. some students were asked to go to other school
C. students spent more moneyon new classes
D. the writer's friends didn't like him any more
5. The writer wants to tell us that ________.
A. it's difficult to make new friends
B. the school needs much money to run
C. being active is good for making friends
D. it's not good to envy your close friends