【名词&注释】
运载火箭(launch vehicle)、电流表(ammeter)、文化节(cultural festival)、接触不良(bad contact)、化学方程式(chemical equation)、浮光掠影、载重汽车(truck)、流连忘返(on the scoop)、惟妙惟肖、艺术价值。
[单选题]运载火箭的主要燃料是偏二甲肼（用R表示），其反应的化学方程式为：R + 2N2O4 == 3N2 + 4H2O + 2CO2，则偏二甲肼的化学式是
A.
B. C2H8N2
C. N2H4
E. CH4
G. C6H7N
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举一反三：
[单选题]（2）电路改正后闭合开关，发现电流表的指针偏转，电压表指针没有偏转，则该故障的原因是 （填下列故障原因的代号）
A. 小灯泡接线短路
B. 电源接触不良
C. 小灯泡接线断路
D. 电流表接线短路
[单选题]下面对文段内容理解有误的一项是（ ）
A. 第②段介绍了华表的来历。
B. 第③段介绍了华表的形制。
C. 第④段主要介绍了华表的应用场所。
D. 第⑤段介绍了华表原名和艺术价值。
[单选题]14．
A. for
B. Have
C. For
D. At
[单选题]下列事例中，为了减小压强的是
A. 注射器的针头很尖 B．压路机上的碾子很重
B. 载重汽车(truck)的车轮很宽 D．滑冰鞋上的冰刀刀口很薄
[单选题]下列句子中加点的成语便用不恰当的一项是( )
A. 近日，柳州市图书馆正式向市民免费开放，前来办证、借书的读者络绎不绝。
B. 在融水苗族坡会文化节上，现场斗马、跳芦笙舞、苗歌对唱等活动让数千游客流连忘返(on the scoop)。
C. 喷泉伴着音乐铺牺开来，如珠玉迸放，如风吹梳动，如静水花开，在彩灯映照下浮光掠影。
D. 小选手通过形体表演，将二十多个人体象形字惟妙惟肖地展现出来，博得了满堂喝彩。
[单选题]（孝文帝）“诏不得以北俗之语言于朝廷，若有违者，免所居官。”对于诏令内容理解准确的是（ ）
A. 在朝廷必须说汉语，违反者免其官职
B. 采用汉族的法律，惩治违法的官员
C. 朝廷令所有的鲜卑人都说汉语
D. 朝廷有权惩处违法官员
[单选题]8．—What's your________ subject?—English．
A. like
B. most
C. favorite
D. good
[单选题]BTom lived a long way from the town．One day he went into the town to buy something in a shop，and after he bought it，he went into a restaurant and sat down at a table． When he looked round，he saw some old people put glasses on before reading their books，so after lunch he went to a shop to buy glasses，too． He walked along the road，and soon found a shop．The man in the shop made him try on a lot of glasses，but each time Tom said，"No，l can't read with this pair． "The man became more and more puzzled． At last he said，"Excuse me，but can you read at all?"No，l can't!"Tom said，"lf I can read，do you think I will come here to buy glasses?"
A. Tom saw some old people _______'
B. far away from the town
C. in a shop
D. in a restaurant
E. in the village
[单选题]BThe world is not only hungry，it is also thirsty for water． this may seem strange to you，since nearly 75% of the earth is covered with water． But about 97% of this water is sea water．Man can only drink and use the other 3% fresh water that comes from rivers，lakes，under-ground and other places． And we cannot even use all of that，because some of this fresh water has been made dirty．
A. However，our need for water is getting greater and greater． Only if we take steps to solve this problem now，we can get away from a serious world water shortage later on． The people of the world cannot have an enjoyable life without enough clean water．
C. lf we can make it clean again，it can be used once more just as if it were fresh from a spring．
D. Where．could we turn to next for water? To the ocean! How can we do to make use of this great a-mount of sea water? We can take the salt from the water to make it fresh．
E. So if we take all these steps，we'll be in no danger of drying up!
F. Why does the writer say that the world is thirsty for water?
G. The amount of fresh water is really very small．
H. The people of the world waste too much water．
I. The people of the world have to drink a lot of water every day．
J. There are too many people in the world needing water．
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