问题 选择题

准晶体是以色列科学家谢赫特曼首次在电子显微镜下观察到的一种“反常”现象:铝锰合金的原子采用一种不重复、非周期性但对称有序的方式排列。但是,这一新发现因有悖原子在晶体内应呈现周期性对称有序排列的“常识”,而饱受批评与诟病。这启示我们

①认识具有反复性和无限性,追求真理是一个永无止境的过程

②客观事物随着人们认识的深化而不断改变

③对同一确定对象会有多个真理性认识

④创新是对既有理论的突破和抛弃

A.①

B.①②

C.①②③

D.①②③④

答案

答案:A

题目分析:②项否认了事物的客观性,是错误的,故不能入选;对同一确定对象的真理性认识只有一个,故③项的说法错误,不能入选;④项中“创新是对既有理论的抛弃”的说法是错误的,故不能入选;①项说法正确且符合题意要求,可以入选。因此,答案是A项。

阅读理解

Because earthquakes happen without warning, it’s important to take steps now to prepare. Because you don’t know where you will be when an earthquake happens, prepare some supplies for your home, workplace, and car.

1. Water.

A person needs at least 1/2 gallon of water daily just for drinking. Store at least 1 gallon of water per person per day and be prepared for a 72-hour period. It is suggested that you buy bottled water. Keep bottled water in its original container and do not open it until you need to use it. Also, do check the “use by” date.

2. Food.

It’s always a practical idea to keep a supply of non-perishable(不易腐烂的) food on hand. Have an enough supply of canned food, powdered milk, dried fruits, non-salted nuts and canned juices for at least 72 hours.

3. Flashlights(手电筒) and spare batteries.

Keep a flashlight beside your bed, at your place of work, and in your car. Do not use matches or candles after an earthquake until you are sure that no gas leaks.

Prepare a battery-powered radio and spare batteries. Most telephones will be out of order, so radios will be your best source of information.

4. Clothes.

If you live in a cold place, you must think about warmth. You might not have heat after an earthquake. Think about your clothing and bedding supplies.

小题1: Why should people prepare themselves for an earthquake?

A.Because earthquakes can be known before they happen.

B.Because earthquakes take place without warning.

C.Because earthquakes usually take place in the neighborhood.

D.Because it’s people’s daily work to prepare the earthquakes.小题2: About the prepared water, which description is RIGHT?

A.A person should prepare 0.5 gallon of water for one day.

B.You’d better use your own containers to keep water.

C.You’d better open the bottled water when you buy it.

D.You shouldn’t open the bottled water until you need it.小题3: You should prepare all of the following except ______.

A.powdered milk

B.fresh vegetables

C.dried fruits

D.canned juices小题4:According to the article we know that ______.

A.we need to prepare some supplies only at home

B.a telephone is the most important prepared thing

C.flashlights but not matches are first used after earthquakes

D.clothes are used to protect your head小题5: If you live in a cold place, you should prepare _______.

A.some warm clothes and bedding supplies

B.some hot water

C.some batteries

D.some flashlights

多项选择题