题目内容

综合填空,阅读下面短文,根据短文内容及首字母提示,在空白处填入一个适当的单词。

Have you ever tried the “Magic Cube”(魔方) ? Pick up one of these cubes and you probably won’t be able to p__1. it down. How hard can it be to rearrange(重新安排) the nine little squares on each s_2.___ of the cube? In fact, there are millions of possibilities! It has been over 30 years s__3._ the cube first hit the market(上市). However, not many people know that it was used just a_4._ a simple classroom model at the beginning.

In 1974, Mr. Erno Rubik i__5.__ the “Magic Cube” as he called it. He did this to help his students to u__6.__difficult 3D concepts(概念). This classroom example was quickly turned into a p 7. toy. In 1979, Ideal Toys started to sell it as “Rubik’s Cube”. The invention quickly became a 1980s cultural icon.(文化偶像)

As time went by, the cube once lost i_8.__ attractive qualities. However, it made a comeback with the internet. Now anyone can go online and find many videos that show w_9.___to solve the cube. Erik Akkersdijk of the Netherlands holds the world r_10.___ now. He finished in just 7.08 seconds!

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Choose the best words and complete the passage You may be surprised to learn how many animals actually have a memory. _______ your goldfish can show evidence (证据) of learning ability. If you have a pet fish, try this _______. Every day when you feed the fish, sprinkle (撒) the food only in the same location.

Keep a record of daily observations (观察) of the fish, taking down notes about the fish's swimming directions or behavior whenever you come to feed it. Before long, the fish should swim to the spot where you sprinkle the food whenever you approach (靠近) the tank. See how it reacts (反应) to your approaching the tank and take notes before, _______, and after your experiment.

In this example of animals' memory, we don't really know if your fish knows the fact that you are going to feed it. But it has showed its _______ ability to learn and to remember.

Bees _______ with each other in a way which shows an intelligent memory. When a bee finds a good location for gathering nectar (花蜜), it will remember _______ to get to this location from its hive (蜂巢). The bee then returns to the hive and passes along its memory by doing a complex dance to inform the others of where the food was found. It uses wings, legs, antennae (触角) and body to deliver the message. When the dance is over, other bees fly to this location to bring back food for the hive.

1.A. Ever B. Never C. Even D. Eve

2.A. experience B. experiment C. exercise D. excitement

3.A. during B. with C. to D. about

4.A. weak B. strong C. bad D. terrible

5.A. compare B. complete C. communicate D. complain

6.A. what B. where C. why D. how

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