76.The most significant feature of Irish landscape is______，which provides peat used for fuel.

A.bogs B.streams C.islands D.cliffs

77.Ireland is unique among European countries for_______.

A.its small population B.its beautiful scenery

C.its rich natural resources D.its century-long population emigration

78.The population decreased from 1840s until about 1970，largely because of_______.

A.a low birth rate B.a high death rate

C.a low employment rate D.a high emigration rate

79.The population of Ireland is predominantly of______origin.

A.English B.Celtic C.Norman D.French

80.Irish nationalism climaxed in________in which an Irish Republic was proclaimed.

A.the massacre of Drogheda B.the Easter Uprising of 1916

C.the battle of Borne（1690）D.the Chartist Movement