PETS證書含金量高用途廣
PETS證書優(yōu)勢
成人學歷英語
PETS-3可免考自考(二)、網(wǎng)絡教育、夜大電大英語科目
本科學位英語
PETS-3可申請自考、網(wǎng)絡教育、夜大電大學士學位
網(wǎng)絡學歷英語
PETS-3可免考成人高考英語考試
公務員英語
PETS-3可免考公務員英語考試
CURRICULUM PLAN
階段 | 內(nèi)容 | 課程 |
---|---|---|
精講班 | 公共英語一級精講班 | 28課時 |
公共英語二級精講班 | 56課時 | |
公共英語三級精講班 | 80課時 | |
公共英語四級精講班 | 54課時 | |
課課練 | 公共英語一級習題班 | 28課時 |
公共英語二級習題班 | 56課時 | |
公共英語三級習題班 | 60課時 | |
公共英語四級習題班 | 77課時 | |
真題解析班 | 公共英語一級真題解析班 | 35課時 |
公共英語二級真題解析班 | 55課時 | |
公共英語三級真題解析班 | 72課時 | |
公共英語四級真題解析班 | 22課時 | |
口試常見話題 | 公共英語一級(口試常見話題)考點解析班 | 19課時 |
公共英語二級(口試常見話題)考點解析班 | 20課時 | |
公共英語三級(口試常見話題)考點解析班 | 13課時 | |
公共英語四級(口試常見話題)考點解析班 | 15課時 |
LEARNING SERVICE
課程學習中心免費答疑
名師課程配套講義免費下載
課件離線下載隨時隨地省流量學習
短信提醒考試節(jié)點
協(xié)議保障 [ 考不過終身免費重學 ]
Certain animals have an intuitive awareness of quantities. They know without analysis the difference between a number of objects ands a smaller number. In his book The Natural History of Selbourne (1786), the naturalist Gilbert White tells how he surreptitiously removed one egg a day to make up plover’s nest, and how the mother laid another egg each day to make up for the missing one. He noted that other species of birds ignore the absence of a single egg but abandon their nest if more than one egg has been removed. It has also been noted by naturalist that a certain type of wasp always provides five-never four, never six-caterpillars for each of their eggs so that their young have something to eat when the eggs hatch. Research has also shown that both mice and pigeons can be taught to distinguish between odd and even numbers of food pieces.