四、短文填空
Water overflows(溢出)onto dry land and a flood happens. People build the cities along rivers because they use the water for drinking and 1.
farming
(farm). For that reason, river floods affect many people. People usually build dams(堤坝)to protect lands 2.
from
river flooding.
Floods can be dangerous. They often leave the villages or towns in 3.
a
terrible state. People may be 4.
trapped
(trap) in a place for days without food. 5.
However
, floods are not always bad. When muddy floodwater goes down, it sometimes leaves a layer(层)of wet earth(泥土). People in the past grew their crops, like rice and corn by 6.
using
(use) the wet earth.
Most often flooding is caused by heavy rain. After the rain, the ground becomes full of water, and new rainwater runs off, or flows downhill. The extra(多余的)water makes the water level(水位线)rise. If the level 7.
rises
(rise) too much, a flood will happen.
Flash floods(暴洪)are the most serious kind of flood. They are caused by sudden heavy rainfall or a 8.
broken
(break) dam. They happen very 9.
quickly
(quick) and can catch people before they are able to get away. Flash floods often happen in hilly countries or around dry riverbeds. In a flash flood, a completely dry riverbed can fill in 10.
minutes
(minute).
解析:
【分析】
本题为短文填空题,考查词汇形式变化、固定搭配、语法结构等。解题思路:先通读全文把握主旨,再结合每个空的前后语境、语法规则、固定搭配逐一确定答案。例如,第1空由并列结构需用动名词;第2空考查固定搭配protect...from...;第5空需转折连词连接前后语义相反的内容,以此类推完成所有填空。
【解析】
1. 考查并列结构:and连接并列成分,前面是动名词drinking,故填farming。
2. 考查固定搭配:protect...from...意为“保护……免受……”,符合语境,故填from。
3. 考查冠词:in a...state是固定短语,意为“处于一种……的状态”,故填a。
4. 考查被动语态:be trapped是固定搭配,意为“被困住”,此处为被动结构,故填trapped。
5. 考查连词:前文说明洪水危险,后文指出洪水不总是有害,为转折关系,且有逗号隔开,故填However。
6. 考查介词用法:by是介词,后接动名词作宾语,故填using。
7. 考查时态:if引导条件状语从句,主句用一般将来时,从句用一般现在时;主语the level为单数,故动词用rises。
8. 考查形容词:修饰名词dam需用形容词,broken意为“破损的”,符合语境,故填broken。
9. 考查副词:修饰动词happen需用副词,quickly是副词,故填quickly。
10. 考查名词复数:in minutes是固定短语,意为“在几分钟内”,故填minutes。
【答案】
1. farming 2. from 3. a 4. trapped 5. However 6. using 7. rises 8. broken 9. quickly 10. minutes
【知识点】
动名词的运用、固定搭配、词性转换
【点评】
本题侧重考查英语基础语法与常用搭配,需结合语境分析句子结构,难度适中,适合巩固基础知识点。
【难度系数】
0.5