1. Water is the main threat to Holland because ____.
A. the sea is too rough
B.the land is lower than the sea
C.the high and strong dykes can not keep the floods out
D. the weather is too rough
2. “Netherlands” means ____.
A.high land
B.land of water
C.low land
D. land of dykes
3. Holland is threatened not only by the sea, but also by ____.
A.the floods from broken dykes
B.the three rivers
C.the sea tides
D. many passages the three rivers have cut across the country
4. The Holland claim land from the sea in order to ____.
A.prevent floods
B.make their country larger
C.make their country more beautiful
D. have more farmland
5. If pumps stop working there will be very floods because _____.
A.the water will run back at high tide
B.the sea may break the dykes in rough weather
C.the battle against water will never end
D. the land is too low and water can rise up through the drained land
6. The word “polder” means ____.
A.a piece of newly-claimed land
B.a small island
C.a newly built dyke
D. a long canal 内容提示与分析：
本文主要介绍了荷兰人与洪涝灾害斗争的情况。第一段讲述荷兰大部分地区的海拔都在海平面以下，所以经常遭洪灾，损失惨重。第二段讲述三条大河也是一大问题。第三段讲述荷兰人通过占有或重新收回水下的土地来扩大领土。第四段讲述荷兰人如何重新收回水下的土地。第五段讲述水泵必须不停的工作，以确保荷兰的安全。第六段讲述重新收回的土地(即开拓地)起着重要的作用。