2 . This was not an easy task. The reason why this was difficult was that the team had __________ resources. They did not have enough staff, and the laboratory in which they worked had poor air quality.(根据句意填空)

3 . Machines ________________ (使人们……成为可能) do more work with less time. (根据汉语提示补全句子)

4 . We took the kids to the zoo as ________________ (一个特别的款待). (根据汉语提示补全句子)

5 . 交通是全球变暖和气候变化的主要原因之一。
Traffic is one of the_____________ causes of global warming and_____________ change.

8 . 有些城市因为建造了参天高塔而保持着世界纪录。但是让西班牙塔拉哥纳引以为傲的，却是由男人、女人和小孩叠成的人塔!您在这项被称为叠罗汉大赛的惊险壮观赛事中，就能目睹这令人屏息赞叹的景象。
Some cities hold the record for having the tallest towers made by men. But Tarragona, Spain, boasts tall towers made of men, women and children! This _____ _____ can be witnessed during a breathtaking contest called Concurs de Castells.

9 . He looked ________ ________ after a day’s climbing. (疲惫不堪) （根据汉语提示完成句子）

10 . Inner beauty is much more important than _________ _________. （外在美）