计算机控制欠加料量允许欠至零。

根据《水土建筑物岩石基础开挖工程施工技术规范》(SL47—97)，露天石方开挖常采用的爆破方法有( )

A．深孔爆破法

B．浅孔爆破法

C．药壶爆破法

D．洞室爆破法

E．预裂爆破法

阅读《三峡》和《与朱元思书》，完成下列各题。

　　自三峡七百里中，两岸连山，略无阙处；重岩叠嶂，隐天蔽日。自非亭午夜分，不见曦月。

　　至于夏水襄陵，沿溯阻绝。或王命急宣，有时朝发白帝，暮到江陵，其间千二百里，虽乘奔御风，不以疾也。

　　春冬之时，则素湍绿潭，回清倒影。绝多生怪柏，悬泉瀑布，飞漱其间，清荣峻茂，良多趣味。

　　每至睛初霜旦，林寒涧肃，常有高猿长啸，属引凄异，空谷传响，哀转久绝。故渔者歌曰：“巴东三峡巫峡长，猿鸣三声泪沾裳！”

　　风烟俱净，天山共色。从流飘荡，任意东西。自富阳至桐庐一百许里，奇山异水，天下独绝。

　　水皆缥碧，千丈见底。游鱼细石，直视无碍。急湍甚箭，猛浪若奔。

　　夹岸高山，皆生寒树，负势竞上，互相轩邈，争高直指，千百成峰。泉水激石，泠泠作响；好鸟相鸣，嘤嘤成韵。蝉则千转不穷，猿则百叫无绝。鸢飞戾天者，望峰息心；经纶世务者，窥谷忘反。横柯上蔽，在昼犹昏；疏条交映，有时见日。

1．解释下列加粗的词。

（1）沿溯阻绝（               ）    

（2）猛浪若奔（               ）

（3）故渔者歌曰（               ）  

（4）经纶世务者（               ）

2．用现代汉语翻译下列句子。

（1）素湍绿潭，回清倒影。

译文：__________________________________________________________________

（2）鸢飞戾天者，望峰息心。

译文：__________________________________________________________________

3．找出甲、乙两文中所使用的通假字各1个，并写出其意思。

（1）甲文中_______通_______，意思是_____________________________________

（2）乙文中_______通_______，意思是_____________________________________

4．乙文中从侧面表现水的清澈的句子是______________；以声音来反衬山林之静的句子是_______________________。   

5．甲、乙两文都写了水流的湍急，但描写的侧重点有所不同，甲文侧重于写水流之_____________，乙文侧重于写水流之____________；甲、乙两文都描写了难见天日之景，但着眼点却不同，甲文以“不见曦月”来突出_____________，乙文以“有时见日”来突出____________。

One cold winter evening, some young families and young couples were eating in a McDonald’s when an old couple walked slowly into McDonald’s hand in hand.

Some of the customers looked admiringly at them .You could tell what the admirers were thinking. Look, there is a couple who has been through a lot together, probably for 60 years or more.” The little old man walked right up to the cash register, placed his order with no hesitation(迟疑) and then paid for their meal. The couple took a table near the back wall and started taking food off the tray. There was one hamburger, one order of French fries and one drink. The little old man unwrapped(打开) the plain hamburger and carefully cut it in half. He placed one half in front of his wife. Then he carefully counted out the French fries, divided them in two piles and neatly placed one pile in front of his wife. He took a sip(吸) of the drink, his wife took a sip and then set the cup down between them.

When the man began to eat his few bites of hamburger, the crowd began to get restless. Again you could tell what they were thinking. “That poor old couple. All they can afford is one meal for the two of them.” Then, the man began to eat his French fries, when one young man stood and came over to the old couple’s table. He politely offered to buy another meal for the old couple to eat. But the old man replied that they were just fine and they were used to sharing everything.

Then the crowd noticed that the little old lady hadn’t eaten a bite. She just sat there watching her husband eat and occasionally taking turns sipping the drink. When the little old man finished eating and was wiping his face neatly, the young man could stand it no longer. Again he came over to their table and offered to buy some food.

After being politely refused again, he finally asked a question of the little old lady. “Ma’am, why aren’t you eating? You said that you shared everything. What is it that you are waiting for?”

She answered, “The false teeth”.

小题1:According to the first paragraph, the old couple _____.

A．enjoyed the scene outside the McDonald’s

B．didn’t look suitable(合适的) for the environment

C．loved being with young families and couples

D．liked the food in McDonald’s小题2:The little old man cut the plain hamburger in half because _____.

A．he couldn’t finish eating it with one bite

B．he was very careful with his food

C．he ordered more than he could eat

D．he wanted to share it with his wife小题3:The young man who offered to buy the old couple food was _____.

A．impolite

B．stubborn

C．sympathetic(有同情心的)

D．doubtful小题4:From the old lady’s answer, we know that _____.

A．she was not interested in the food

B．the couple suffered a terrible toothache

C．the couple were using the same false teeth

D．actually she didn’t answer the young man’s question

通常凡是能起到降低摩擦阻力，起到润滑作用的介质都叫做（）。

A、润滑剂

B、稀释剂

C、调和剂

D、增稠剂

国家对严重危及生产安全的工艺和设备实行（）制度。