若集合M={x|x≤6}，a=5，则下面结论中正确的是（ ） A．a⊂M B．a⊄M

古诗文阅读（22分）

乡村四月 （4分）

【宋 】翁卷

绿遍山原白满川，子规声里雨如烟。

乡村四月闲人少，才了蚕桑又插田。

小题1:这首诗前两句着重写景：绿原、    、子规、    ，寥寥几笔就把水乡初夏时特有的景色勾勒了出来。（2分）

小题2:细细品读，诗歌表达了诗人怎样的感情？(2分)

阅读理解。

     When I was a child, I often dreamed of the time when I could leave home and escape to the city. We lived

on a farm. In the winter especially, we wear quite out off from the outside world. As soon as I left school, I

packed my bags and moved to the capital. However, I soon discovered that my life has its too.

     One big disadvantage is money. It costs so much to go out, not to mention basics like food and housing.

Another disadvantage is pollution. I suffer from asthma (哮喘), and the air is so that I am afraid to go outside.

Then there is the problem of traveling round. Although I have a car, I seldom use it became of the traffic jams.

One choice is to go by bicycle, but that can be quite dangerous.

     Of course there are advantages. First, there is so much to do in the city, whatever you tastes in culture or

entertainment (娱乐活动). Besides, there are wonderful jobs and greater chances of moving to a more important

job or position. Finally, if you like shopping, the variety of goods is very surprising-and, what is more, shops

are often only a short walk away.

     Is life better then, in the city? Perhaps it is, when you are in your teens (十几岁) or twenties. However, as

you get older, and especially if you have small children, the peace of the countryside may seem preferable. I

certainly hope to move back there soon.

1. What was the writer always thinking about when he was a child?

A. Staying on the farm.

B. Moving to the countryside.

C. Leaving home for the city.

D. Running away from the school.

2. Which of the following is true about the writer?

A. He is very old now.

B. He is in good health.

C. He prefers driving a car.

D. He lives in the city now.

3. In the passage, the writer tries to _____.

A. express his opinions about way of life

B. describe his life in the countryside

C. an interest in the outside world

D. persuade the reader to live in the city

4. How is the passage mainly developed?

A. By inferring.

B. By comparing.

C. By listing examples.

D. By giving explanations.

接地有什么作用？有几种接地方式？

吸收酸浓越低吸收过程的推动力越（）。

A、大

B、小

C、先增大后减小

D、先减小后增大

下列实验操作能达到预期结果的是（）

A.在“观察根尖分生组织细胞的有丝分裂”实验中，统计每一时期细胞数占细胞总数的比例，能比较细胞周期各时期的时间长短

B.在鉴定还原糖时为避免样液本身颜色的干扰，应选取接近白色或无色的甘蔗提取液

C.将载有水绵和好氧细菌的装片置于黑暗且缺氧的环境中，用极细光束照射后，细菌集中于有光照的部位，能说明光合作用产生的氧气来自于水

D.在单侧光照射下，金丝雀虉草胚芽鞘向光弯曲生长，去尖端的胚芽鞘不生长也不弯曲，能说明生长素具有极性运输的特点