选修六unit1能力达标训练
C.more better D.by far better
解析 句中含than,所以句中应用比较级,排除A项;B项very应修饰形容词、副词原级;C项better本身是比较级,无需加more;D项by far修饰比较级。
答案 D
4.They had ________ to become the first to climb Everest without oxygen tanks and in the end,they made it.
A.managed C.succeeded
B.attempted D.predicted
解析 句意:他们努力成为第一个不需要氧气瓶就可以爬上珠穆朗玛峰的人,最终他们成功了。此句要用attempted指努力的过程。根据“and in the end,they made it”可知,managed不适合用在此句中。succeeded意思不合适,后面也不能接to do;predicted指“预测”,后面不接动词不定式。
答案 B
5.Scientists ________that global warming would make the icebergs on the Arctic melt in five hundred years.
A.inform
B.predict D.trust
C.promise
解析 句意:科学家预测500年后全球变暖将会使北极上的冰川融化。此句要用predict表示“预测”。inform“通知”;promise“许诺”;trust“信赖”。