3．Robot scientists（70）are not just trying to make robots look like people．For example，there are already robots working（71）in factories．These robots look more like huge arms．They do simple jobs over and over again．People would not like to do such jobs and would get bored．But robots will never get bored．In the future，there will be more robots everywhere（72），and humans will have less（73）work to do．New robots will have many different shapes．Some will look like humans，and others might look like snakes．After an earthquake，a snake robot could help look for people under buildings（74）．That may not seem possible now，but computers，space rockets and even electric toothbrushes seemed impossible（75）a hundred years ago．We never know what will happene in the future．

分析 機(jī)器人科學(xué)家不只是試圖讓機(jī)器人看起來像人，還能做許多事情，機(jī)器人越多，人類干得活兒越少，蛇形機(jī)器人在建筑物下面幫助找人比較方便．

解答 70．scientists  考查名詞的辨析．根據(jù)句意：機(jī)器人科學(xué)家不只是試圖讓機(jī)器人看起來像人，即 研究制造機(jī)器人的是科學(xué)家，根據(jù)動詞are，確定用復(fù)數(shù)形式，故填scientists．
71．working．考查固定句型．根據(jù)題干可知是使用了"there be sb．doing…"句型，現(xiàn)在分詞修飾做主語的名詞robots，結(jié)合句意：已經(jīng)有在工廠里工作的機(jī)器人，故填working．
72．everywhere考查副詞的辨析．結(jié)合有：未來將會到處是機(jī)器人，此處表示地點(diǎn)，應(yīng)該用everywhere．
73．less考查比較級的辨析．與前面的more相呼應(yīng)，意思是機(jī)器人越多，人類干得活兒越少．故填less．
74．buildings考查名詞的辨析．根據(jù)句意：地震后這種機(jī)器人在建筑物下面幫助找人比較方便．故填buildings，可數(shù)名詞，注意應(yīng)該用名詞的復(fù)數(shù)．
75．impossible考查形容詞的辨析．根據(jù)上句的"may not seem possible"或許看起來是可能的，可知此處應(yīng)該是：但一百年前，電腦、太空火箭甚至電動牙刷似乎是不可能的．故填impossible．

點(diǎn)評 做這類題，不但要選擇正確意義的詞、詞組及句型，還要根據(jù)具體語法和語境，選擇適當(dāng)?shù)臅r態(tài)、語態(tài)及使用正確的詞形．

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