1、(一)阅读下面的文言文，完成1—4题。有子曰:“其为人也孝弟，而好犯上者，鲜矣;不好犯上，而好作乱者，未之有也。君子务本，本立而道生。孝弟也者，其为仁之本与!” 子夏问孝。子曰:“色难。有事，弟子服其劳，有酒食，先生馔，曾是以为孝乎?” 1.请从上述文字中写出一个成语( )。

50.He said he( ) a report since two o’clock that morning.

49. I have worked here since I( ) from college.

48. In the past， flying carpets and wind-fire wheels only( )in myths or people’s dreams.

47. These new generation tools are the results of human efforts to( ) their dreams.

46. If a friend sends you a photo of himself riding on a single wheel self-balance car， you( )find it too cool.

45. I like to hold potlucks at the office and invite volunteers to make them ( ) like part of the team.

44. By the end of each year， we’d try to show our appreciation to those volunteers ( )have helped to make life more beautiful.

43. ( )the coming of the telephone， people could not only read words， but also hear each other’s voices.

42. — Is this () apple tree? — No， it is () orange tree.

41. His plane is due at 10 in Pairs. Look， () plane is now at () airport.