The Japanese Macaca monkey has been studied in the wild for over 50 years. In 1952, on one small Japanese island, scientists dropped some 1 in the dirt for the monkeys. The monkeys liked their taste, but they found the dirt 2 .
One clever 18-month-old monkey found she could 3 the problem by washing the sweet potatoes in a nearby river. She taught this to her mother. Her 4 also learned this new way and they taught their mothers, too.
All the younger monkeys 5 learned to wash the dirty sweet potatoes to make them 6 to eat. But many old monkeys found it very hard to learn this and still ate the 7 sweet potatoes.
Then something very surprising . In the autumn of 1958, scientists found that the monkeys on other nearby 8 began washing their sweet potatoes too. Scientists still don't fully understand how this knowledge was 9 from one island to another.
When you are reading something in English, you may often meet with a new word. What's the best way ① (know) it?
You may ② in the English-Chinese dictionary. It will tell you a lot about the word: the pronunciation, the Chinese meaning and how to use the word. But how can you know where the word is in thousands of English words? How to find it in the dictionary both quickly and correctly?
First, all the English words are arranged in the letter order. In the dictionary you can first see the words beginning with letter A, then B,C,D... That means, if there are two words both beginning with the same letter, you may look at the second letter, then the third, the fourth.... For example, "pardon" is before "plough", "judge" before
"just", etc.
③Do you understand how we can look up a word in a dictionary?
The dictionary will be your good friend. ④我希望在你的英语学习中,你会尽可能经常地使用它。
What's the best way (know) it?
You may ____in the English-Chinese' dictionary.
Do you understand up a word in a dictionary?
I hope you'll use it in your English study.
spelling; pronounce; possible; shy; practise