内容正文:
仁爱英语八下Unit9
语法详解及练习
一、语法点1:复合词(Compound words)
语法讲解
定义:由两个或多个独立单词组合而成的新单词,表达新的含义。
常见类型(本单元核心):
1. 名词+名词:两个名词直接组合,如 snow(雪)+ storm(风暴)= snowstorm(暴风雪);
2. 动词/形容词+名词:如 flash(闪光)+ light(光)= flashlight(手电筒)。
本单元典型复合词:
复合词
构成词1
构成词2
含义
snowstorm
snow(雪)
storm(风暴)
暴风雪
thunderstorm
thunder(雷)
storm(风暴)
雷暴
earthquake
earth(地球)
quake(震动)
地震
flashlight
flash(闪光)
light(光)
手电筒
sandstorm
sand(沙)
storm(风暴)
沙尘暴
二、语法点2:副词的比较级和最高级(Comparative and superlative adverbs)
语法讲解
定义:用来比较动作的程度、频率等,分为比较级(两者比较)和最高级(三者及以上比较)。
变化规则:
1. 规则变化:
单音节副词:直接加 -er(比较级)/ -est(最高级),如 fast → faster → fastest;
多音节副词:在词前加 more(比较级)/ most(最高级),如 carefully → more carefully → most carefully;
2. 不规则变化:
原级
比较级
最高级
well
better
best
badly
worse
worst
far
farther
farthest
用法注意:
比较级后常接 than;
最高级前常加定冠词 the(也可省略),且常接表示范围的短语(如 in my life)。
三、语法练习题
题型一:复合词拼写
根据提示写出复合词:
1. snow + storm = ___________(暴风雪)
2. thunder + storm = ___________(雷暴)
3. earth + quake = ___________(地震)
4. flash + light = ___________(手电筒)
5. sand + storm = ___________(沙尘暴)
6. flood + way = ___________(泄洪道)
7. after + shock = ___________(余震)
8. super + market = ___________(超市)
9. rain + bow = ___________(彩虹)
10. sun + shine = ___________(阳光)
题型二:复合词选词填空
从方框中选复合词填空(每词限用一次):
flashlight; sandstorm; supermarket; floodway; aftershock
1. You need a ___________ to walk in the dark.
2. A strong ___________ hit the desert area yesterday.
3. We bought food in the ___________ before the snowstorm.
4. The ___________ helped reduce the flood damage.
5. A small ___________ happened 30 minutes after the earthquake.
题型三:副词比较级/最高级变化
写出下列副词的比较级和最高级:
1. fast → (比较级)___________ ;(最高级)___________
2. carefully → (比较级)___________;(最高级)___________
3. far → (比较级)___________;(最高级)___________
4. well → (比较级)___________;(最高级)___________
5. badly → (比较级)___________;(最高级)___________
6. slowly → (比较级)___________;(最高级)___________
7. early → (比较级)___________;(最高级)___________
8. quickly → (比较级)___________;(最高级)___________
9. high → (比较级)___________;(最高级)___________
10. terribly → (比较级)___________;(最高级)___________
题型四:单项选择
1. The wind blew ___________ than before, so we stayed indoors.
A. strong B. stronger C. more strongly
2. Among all the students, Lily finished the safety drill ___________.
A. most quickly B. quicker C. more quickly
3. A ___________ is a storm with a lot of sand.
A. snowstorm B. sandstorm C. thunderstorm
4. We need to run ___________ to escape the flood.
A. far B. farther C. farthest
5. The ___________ destroyed many houses in the village.
A. earthquake B. aftershock C. floodway
题型五:完成句子
根据汉语提示完成句子:
1. 雷暴比暴风雪更危险。
A ___________ is ___________ dangerous than a ___________.
2. 他开车比我更小心。
He drives ___________ ___________ than I do.
3. 在所有救援人员中,他跑得最快。
Among all the rescuers, he ran ___________ ___________.
4. 地震后,我们用手电筒照亮了道路。
After the ___________, we used a ___________ to light the road.
5. 这场沙尘暴是我见过的最严重的。
This ___________ is the ___________ serious one I’ve ever seen.
四、参考答案与解析
题型一:复合词拼写
1. snowstorm
2. thunderstorm
3. earthquake
4. flashlight
5. sandstorm
6. floodway
7. aftershock
8. supermarket
9. rainbow
10. sunshine
解析:直接按“名词+名词”的规则组合即可。
题型二:复合词选词填空
1. flashlight(黑暗中需要手电筒)
2. sandstorm(沙漠地区的风暴是沙尘暴)
3. supermarket(购买食物的场所是超市)
4. floodway(减少洪水破坏的是泄洪道)
5. aftershock(地震后的震动是余震)
题型三:副词比较级/最高级变化
1. faster; fastest
2. more carefully; most carefully
3. farther; farthest
4. better; best
5. worse; worst
6. more slowly; most slowly
7. earlier; earliest
8. more quickly; most quickly
9. higher; highest
10. more terribly; most terribly
解析:单音节副词加 -er/-est,多音节副词加 more/most,不规则变化需牢记。
题型四:单项选择
1. C(blow是动词,用副词修饰;strongly是多音节副词,比较级加more)
2. A(三者及以上比较用最高级,quickly的最高级是most quickly)
3. B(含沙的风暴是sandstorm)
4. B(两者比较用比较级,far的比较级是farther)
5. A(摧毁房屋的是地震,aftershock是余震、floodway是泄洪道)
题型五:完成句子
1. thunderstorm; more; snowstorm(thunderstorm是雷暴,比较级用more)
2. more carefully(carefully是多音节副词,比较级加more)
3. the fastest(最高级前加the,fast的最高级是fastest)
4. earthquake; flashlight(地震是earthquake,手电筒是flashlight)
5. sandstorm; most(sandstorm是沙尘暴,最高级用most)
(
1
)
学科网(北京)股份有限公司
$