VI. 书面表达(满分25分)

Dear friends,

　May I have your attention please? I have an announcement to make.

That’s all! Thank you.

V．短文改错(共10小题，每小题1分，满分10分)

I used to going into the countryside to draw animals and plants, one day I

was walking across a field, looking for rabbits to draw. Lost on thought, I hadn't

noticed a bull (公牛) to running towards me. About 100 metres ahead were a

tree under which I would sit and draw. Suddenly, I heard the noise behind me. I

turned and saw the bull. I knew a bull can run more faster than a man, and I also

knew that a bull can't see very clear and notice only shape and movement.

So I ran calmly towards the tree, keep the tree, myself and the bull in a

straight line. I also threw my bag to the right, so it was out the line of the 　tree. The bull saw a sudden movement and headed to the bag. I reached the tree and climbed up it.

V．短文改错(共10小题，每小题1分，满分10分)

　 假定英语课上老师要求同学之间交换批改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。

注意：1. 每处错误及其修改均仅限一词。

2. 只允许修改10处,多者(从第11处起)不计分.

　I used to going into the countryside to draw animals and plants, on one day 1 was

walking across a field, looking for rabbits to draw. Lost in thought, I hadn't noticed

a　 bull (公牛) to running towards me. About 100 metres ahead of was a tree under

which I would sit and draw. Suddenly, I heard the noise behind me. I turned and saw

the bull. I knew a bull can run more faster than a man, and I also knew that a bull

can't see very clearly and notice only shape and movement. So I ran calmly towards　

the tree, keep the tree, myself and the bull in a straight line. I also threw my bag to

the right, so it was out the line of the tree. The bull saw a sudden movement and

headed to the bag. I reached the tree and climbed up it.

40. 下列关于利用胚胎工程技术繁殖优质奶羊的叙述．错误的是

　 A．对受体母羊与供体母羊进行同期发情处理

　 B．人工授精后的一定时间内，收集供体原肠胚用于胚胎分割

　 C．利用胚胎分剖技术可以获得两个基因型完全相同的胚胎

　 D．一次给受体母羊植入多个胚胎．可增加双胞胎和多胞胎的比例

2009-2010学年度下学期期末考试

生物试题

39. 下列关于动物细胞培养的叙述，正确的是

A.培养保留接触抵制的细胞在培养瓶壁上可形成多层细胞

B.克隆培养法培养过程上多数细胞的基因型会发生改变

C.二倍体细胞的传代培养次数通常是无限的

D.恶性细胞系的细胞可进行付代培养