【題目】 Today Jenny and I did a special experiment. Jenny filled a jar with water and then put a cardboard on the top of the jar. Jenny put her hand on the cardboard and turned the jar u【1】down quickly. I thought the water would p【2】out. But to my surprise, when Jenny 【3】(take) off her hand, the cardboard held the water. Jenny explained that the f【4】of the air was strong enough to hold the water. From the experiment I know science is very fantastic. Scientific 【5】(discovery) are amazing, too.

【答案】

【1】upside

【2】pour

【3】took

【4】force

【5】discoveries

【解析】

短文大意：本文作者講述了和珍妮共同做的一個(gè)實(shí)驗(yàn)，感受到科學(xué)是非常奇妙的。

【1】句意：珍妮把手放在紙板上，迅速地把罐子倒過(guò)來(lái)。

upside down顛倒，固定短語(yǔ)；根據(jù)句意語(yǔ)境和首字母提示，可知填upside。

【2】句意：我以為水會(huì)流出來(lái)。

pour out傾瀉，固定短語(yǔ)；根據(jù)上文“turned the jar upside down把罐子倒過(guò)來(lái)”，結(jié)合首字母提示，可知以為水會(huì)流出來(lái)。would將會(huì)，后接原形動(dòng)詞，故填pour。

【3】句意：但令我驚訝的是，當(dāng)珍妮松開(kāi)手的時(shí)候，紙板托住了水。

take off拿掉。本句是時(shí)間狀語(yǔ)從句，主句動(dòng)詞held是hold的過(guò)去式；根據(jù)句意時(shí)態(tài)和首字母提示，可知從句動(dòng)詞需用過(guò)去式，故填took。

【4】句意：詹妮解釋說(shuō)，空氣的力量足夠把水托住。

定冠詞the后接名詞；the force of……的力量，根據(jù)句意語(yǔ)境和首字母提示，可知填force。

【5】句意：科學(xué)發(fā)現(xiàn)也很驚人。

scientific discovery科學(xué)發(fā)現(xiàn)；系詞are需跟復(fù)數(shù)人稱，根據(jù)句意語(yǔ)境和首字母提示，可知填discoveries。

短文填空，要求根據(jù)句意語(yǔ)境和首字母提示填空，使句意通順，語(yǔ)法正確，文意連貫。主要考查單詞形式，包括名詞的單復(fù)數(shù)和所有格、動(dòng)詞的三單形式、非謂語(yǔ)動(dòng)詞、基數(shù)詞或序數(shù)詞，主格代詞/賓格代詞和物主代詞（形容詞性物主代詞/名詞性物主代詞）等。這類題目難度不大，重點(diǎn)是掌握句意，在理解的基礎(chǔ)上把握句子時(shí)態(tài)，從而判斷所填單詞的正確形式。例如小題5，scientific discovery科學(xué)發(fā)現(xiàn)；系詞are需跟復(fù)數(shù)人稱，根據(jù)句意語(yǔ)境和首字母提示，可知填discoveries。

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