*** *** I.用所给词的适当形式填空 some________in math.
1.The people in _________(German) speak German A decisions B mistakes C progress D plans
2. We are satisfied with their_______(perform) 4. Nowadays , it ’s convenient and cheap for us ________a
3. lily's father has a large________ (ceoclt )of old coins. shared-bicycle.
4.Teenagers should __________(encourage)tosolve their A ride B to rid e C flying D to fly
problems by themselves 5. Your mother is very busy. She hardly does morning
5. Working as a volunteer in Sichuan was an exercise,________?
_________(usual) experience A isn’t she B does she C doesn’t she D is she
6. What do you think is the greatest________ (invent) of the 6. ---Here are still ________minutelseft. We don’t have to
twentieth century? run, honey.
7. The old man wanted to move to a _______(peace)place. ---No! The movie has already ________for five minutes.
压强练习
基础题
一.选择题：
1.下列关于压力和压强的说法中正确的是( )
A.单位面积上受到的压力越大，压强越大 B.受力面积越大，压强越大
C.压力越小，压强越小 D. 重力越大，压力越大
2.下列事例中为了增大压强的是( )
A.书包的背带做得扁而宽 B.推土机上装有宽大的履带
C.铁轨铺在一根根路枕上 D.纸盒包装学生奶配备吸管，有一端是尖的
3.放在水平桌面上的电视机，受到彼此平衡的力是( )
A.电视机受到的重力和桌面对电视机的支持力
B.电视机受到的重力和电视机对桌面的压力
C.电视机对桌面的压力和桌面对电视机的支持力
D.电视机对桌面的压力和桌子受到的重力
4.如图所示的鞋底、轮胎上都有凹凸不平的花纹，这主要是为了 ( ）
A.增大受力面积，减少压强
B.减少受力面积，增大压强
C.使接触面粗糙，增大摩擦
D.增强产品的美观
5.某同学在水平道路上骑自行车,当车胎发生慢漏气时,车胎对地面的压强将( )
A. 变大 B. 变小 C. 不变 D. 不好确定.
6.某同学用压强计研究液体内部压强的特点时，将压强计的金属盒放入水中同一深度，并将金属盒朝向不同方向，实验结果如图
所示。那么，该实验能得出的结论是（ ）
A.在水中深度越大，压强越大
B.不同液体同一深度，压强不相等
C.在水中同一深度，液体向各个方向的压强相等
D.在水中同一深度，液体向各个方向的压强不相等
7.有关下列描述符合实际的是( )
A.人体感觉最舒适的环境温度是35℃
B.一个普通中学生的质量约是50kg C.我们用的物理课本的长是45.70cm
D.双脚站立在水平地面的人对地面的压强约是1.5×105Pa
8.盲道是为盲人提供行路方便和安全的道路设施，一般由两种砖铺成，一种是条形引导砖，引导盲人放心前行，称为行进盲道；一种是带有圆点的提示砖，提示盲人前面有障碍，该转弯或上、下坡了，称为提示盲道。砖上的条形或圆点高出地面5cm，当盲人走在上面时（ ）
( )1. Tom is taller than ___________ student in his class.
A. any B.the other C.any other D.other any
( )2. —What’s ___________ mountain in the world?
—Qomolangma. It’s 8,844.43 meters high.
A. highest B. the highest C. higher D the higher
( )3. Could you speak in a __________ voice? We can hardly hear you.
A. friendlier B. louder C. softer D. lovelier
( )4. —Which one do you like_________?— Neither, thanks.
A.better B.the better C.best D .the best
( )5.The store has __________ the prices. The things there are cheaper than before.
A. kept B. put C. improved D. cut
( )6. —Did you know China is one of the oldest countries in the world?
—Yes, I did. It’s much older than the US.
A. much older B. more older C. much elder D. more elder
( )7.—Which is __________, Town Cinema, Screen City or Movie Palace?
—Movie Palace.
期中测试
一、单项选择（15分）
（ ）1. Granny often tells us ________ water in our daily life.
A. save B. saving C. to save D. saves
（ ）2. —I don’t do well in English. What should I do?
—________.
A. You must read and listen more B. You will read and listen more
C. You should speak as much as possible D. You can read and speak
（ ）3. —Smoking is bad for your health.
—You’re right. I decide to ________.
A. take it down B. find it out C. turn it off D. give it up
（ ）4. Where ________ you ________ this time last year?
A. were; working B. had; worked C. did; work D. do; work
（ ）5. If you go to visit London, don’t forget your ________ because it rains a lot.
A. passport B. money C. map D. umbrella
（ ）6. We should learn how to ________ well with people around us.
