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　　66、turn one’s back on sb. 不理睬(某人),背棄,拋棄

　　同義替換：

　　turn away from sb. in an impolite way

　　造句：

　　We cannot turn our back on the world outside.

　　我們不能不去理睬整個世界。

　　67、behind one’s back 背著某人(說壞話)

　　造句：

　　Don' t speak ill of him behind his back.

　　別在背后說他壞話。

　　68、be based on upon 基于

　　base原始涵義：

　　n.基礎, 底座The lamp stands on a circular base.這盞臺燈是裝在圓形底座上的。

　　基地, 根據(jù)地The country maintains military bases on foreign soil.那個國家在國外設有軍事基地。

　　vt.把…建立在, 以…為基礎One should always base one's opinion on facts.我們應總是把自己的觀點建立在事實的基礎上。

　　基于;以…為根據(jù)(on， upon)He based the book on his own life.他根據(jù)他自己的生活寫這本書。

　　vi.基于(on, upon)Fluctuating prices usually base on a fickle public's demand.物價的波動往往因公眾需求的變化而造成。

　　真題重現(xiàn)：

　　Superhigh scores like vos Savant's are no longer possible, because scoring is now based on a statistical population distribution among age peers.

　　人們已經不可能得到像薩凡特那么高的分數(shù)了，因為現(xiàn)在的得分以各年齡段的人口統(tǒng)計學分布為依據(jù)。 (2007閱讀)

　　造句：

　　A visual interface is based on visual patterns.

　　視覺模式是視覺界面的基礎。

　　69、on the basis of 根據(jù)…, 在…基礎上

　　basis原始涵義：

　　n.基礎,要素;基點The simplest basis for classification is in terms of structure or texture.最簡單的分類基礎是結構或構造。

　　真題重現(xiàn)：

　　On the basis of their models, scientists are of the opinion that the climate of the world should be becoming cooler.

　　科學家根據(jù)他們的模型，認為全球的氣候應該是在變冷。 (1992閱讀)

　　造句：

　　On the basis of the evidence we deduced that he was guilty.

　　根據(jù)這些證據(jù),我們推論他是有罪的。

　　70、beat…at 在…運動項目上打贏

　　beat原始涵義：

　　vi. (心臟等)跳動His heart was still beating.他的心臟還在跳。

　　(翅膀)撲扇;有節(jié)奏地拍動;顫動，震動The wings of the sea gull were beating frantically.海鷗的翅膀在瘋狂地撲扇著。

　　vt. & vi.接連地擊打It is wrong to beat others.打人是不對的。

　　vt.打敗At last they beat their enemy.最終, 他們打敗了敵人。

　　n.敲打, 敲打聲We heard the beat of a drum.

　　造句：

　　He said that no one could beat him at tennis, but he had to eat his words after losing several games.

　　他說過打網球誰都贏不了他，可是輸了幾場比賽后他不得不認錯了。

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