题目内容

— Congratulations! You've got the first prize in the English Contest.
—_____ it be true? It's unbelievable!
A．MayB．ShouldC．MustD．Can
D解析:
略
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阅读短文，用方框内所给单词的正确形式填空，使短文意思通顺、完整。请将答案写在短文后相应题号的横线上。注意：①每个单词只能用一次。②每空限填一词，有些词需要做相应的变化。③其中有两个多余选项。

A car needs gas to run and your body also needs food to work. 【小题1】_____ the right kind of food is very important. It can help your body grow strong, so take care of _【小题2】____ you eat.
There are four main food groups together. The dairy group has food like mild, cheese, and yogurt. The other three __【小题3】____ are the meat and fish group, the fruit and vegetable group, and the bread and rice group. Each meal should have at ___【小题4】___ one food from all the four main groups. With all these food together, you will be __【小题5】____ enough energy during the day.
It’s easy to get into bad eating __【小题6】___. You may eat your breakfast in a hurry to get to school on time. Or you may not have time for a good lunch. It may seem easy to _【小题7】 your supper with fish and chips all the time. But you will find ___【小题8】__tired during these days and you can’t think quickly.
Watching what you eat will help keep your body __【小题9】_ and strong. It’s also good to take some exercise. It will __【小题10】_ you eat more if you take a walk or play games in the open air. Having a good eating habit with some exercise is the key to your health.
请根据故事内容，按事情发生顺序，重新排序。
A.So the two men walked down the road until they came to a bridge.
B.Fred and Bert asked him where he got the dish. He told them, “ I got it from a river near here.
C.Two men, Fred and Bert, were walking along a road.
D.Fred said to Bert, “When you catch a fish, shout and I can pull you up.”
E.They net another man on the road. He was coming in the opposite direction, carrying a very big fish.
F.An hour later Bert suddenly shouted,” Quick, quick. Pull me up! QUICK!”
G.“ It’s great!” The fish there are jumping so high that you can catch them in your hands-from the bridge!” said the man.
H.“Have you got a fish?” Fred asked. “How big is it? Enormous?”
I.Fred held Bert’s feet while Bert hung over the river.
J.“No, I haven’t got a fish.” Bert answered. “ There’s a train coming!”
C--【小题1】_____ --B—【小题2】______ -- A -- 【小题3】 _________ -- D--【小题4】_______ -- H –【小题5】__________
—_____ will you play basketball with me?
—In about 20 minutes after finishing my homework.
A．How soonB．How longC．How oftenD．How far
用笔画线代替导线，把图中的三孔插座、电灯及控制电灯的开关接
到电路上。
                  
要使红细胞破裂,以便观察寄生在红细胞内的微生物,应把红细胞放置在     
A．30%的蔗糖溶液中B．9%的盐水中
C．0.9%的盐水中D．蒸馏水中
细胞通讯是指一个细胞发出的信息通过介质传递到另一个细胞产生相应的反应。细胞间的通讯对于多细胞生物调节生命活动是必需的。下图是几种细胞通讯的实例，下列说法错误的是                     （   ）
A．甲图中a是胰岛素，肝细胞上的受体与a结合后，可引起糖元的合成速率加快
B．乙图中的b是细胞表面受体，其化学本质是糖蛋白
C．丙图中的抗体是由游离于细胞质基质中的核糖体合成，内质网运输，高尔基体再加工后经外排方式分泌的，它的产生与释放都不需要能量
D．发生丙图中生理过程的e细胞至少接受过两次过敏原的刺激，它释放的d物质为组织胺
人体细胞中共有46条染色体，玉米体细胞中共有20条染色体，要测定人类基因组和玉米基因组的核苷酸序列，分别需要测定的染色体数为（  ）
A．46，20B．23，10C．22(常)+X+Y，10D．22(常)+X+Y，11
Whenever you meet with difficulties, you can ask the policeman ____help.
A．atB．inC．forD．with

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