根据我国民事诉讼法的规定，人民检察院对民事案件进行抗诉，应当：A．在两年内提出 B．

上海国际一级方程式赛车场呈“上”字造型，赛道总长约5.4公里，拥有14个不同转弯半径的弯道和9种不同组合的赛道。赛车比赛中，车手要不断改变赛车的速度和运动方向。赛车比赛精彩激烈、难度大、科技含量高。

（1）为了保证比赛的安全，赛场安排了巡警，如图是巡警所用的某品牌电动巡逻车，其主要技术参数如表所示。已知该电动巡逻车在水平路面上匀速行驶时所受的阻力为人车总重的0.04倍，设该电动机能把电能全部用来牵引巡逻车克服阻力做功。总质量为220kg的四名巡警乘坐该车，在水平路面上以额定功率匀速行驶10min。求：

①电动机消耗了多少电能？

②巡逻车通过了多少路程？

③若轮胎与地面的总接触面积是9×10^-2m²，巡逻车停止时，人和车对地面的压强是多大？（g取10 N/kg）

（2）赛车运动对汽车工业的促进作用很大，为节约能源．目前汽车刹车器均采用油压制动。油压制动刹车时消耗的机械能以内能形式排放掉，形成能源的浪费。现有一种汽车再生制动器，能把汽车刹车制动时消耗的机械能转化为电能而储存起来，有效地利用了能量。将汽车正常行驶时关闭发动机，直至汽车停止的过程中，通过再生制动器将动能转化为电能的效率称为储能效率。从能量转化的角度看，汽车再生制动器相当于          。（电动机/汽油机/发电机）

（3）某次测试过程中，先让汽车正常行驶，然后关闭发动机，分别测出开启和关闭再生制动器两种情况下，汽车通过的路程s与对应的速度大小v，计算出动能E_k，作出E_k-s图像，如图。可以看出，开启再生制动器进行测试的图线是①、②中的_______，该次测试中储能效率为______。

下列说法不正确的是                                             

A．乙醇的比例模型：

B．化学式CH₂Br₂只能表示一种物质

C．正戊烷的碳链是直线形

D．正丁烷(C₄H₁₀)的二氯代物有六种同分异构体

第三部分阅读技能（共两节，共16小题，满分26分）

第一节阅读理解（共12小题；每小题1.5分，满分18分）

One morning I was woken by my mother’s angry voice. I opened my eyes and found it was seven forty , so jumped out of bed and rushed to a nearby bus stop without breakfast. Fortunately the bus started going as soon as I got on it. I was sure I could reach the school before the bell rang.

However, the bus suddenly stopped. There was something wrong with it and we had to get off and wait for another one. I felt I couldn’t wait and the school was only fifteen minutes’ walk, so I ran to the school as fast as possible. Just at this moment, it began to rain hard. 

I reached the classroom with all my clothes wet through. Mr. Smith, our physics teacher, had begun his class. I was always afraid of him. I hesitated (犹豫) for a moment, and then I opened the door.

“It’s you again, Jim,” Mr. Smith said angrily. “I’ve told you not to be late, but you...” Then he suddenly stopped when he noticed my wet clothes. He quickly took off his own jacket and asked me to put it on. “I don’t want you to catch a cold,” he said kindly. I went to my seat with Mr. Smith’s jacket on. It was a bit large for me but I felt very warm in it. I found, for the first time, Mr. Smith’s physics class so interesting and I changed my mind, there and then, about being afraid of him.

49. According to this passage, classes in Jim’s school probably began at _______.

A. 9 am             B. 8 am            C. 7 am            D. 7:30 am

50. Why did Jim not open the door at first?

A. He was afraid of facing Mr. Smith.         

B. He didn’t like to have the physics class.

C. Mr. Smith didn’t let him go into the classroom.   

D. He didn’t want to interrupt others.

51. Jim found Mr. Smith’s physics lesson interesting that day because ________.

A. he knew physics was very important         B. he wanted to go to a famous college

C. he didn’t want to fall behind the others       D. he was moved by his physics teacher

52. We can infer from the passage that _______.

A. Jim usually went to school by bike        B. it was the first time Jim had been late

C. Jim was often late for school             D. Jim’s mother also got up late that morning

下列过程一定释放出能量的是（　　）

A．化合反应

B．分解反应

C．分子拆成原子

D．原子组成分子