人教版小学语文四年级下学期 第三组 单元知识点梳理

第3组知识梳理
一、生字
愚蠢(yú)　　气喘吁吁(xū)　　侦察(zhēn)
侵蚀(qīn)
蝙蝠(biān)
捕捉(bǔ)
荧光屏(yíng)
二、多音字
丧
折
散
蒙
扫
钻
三、近义词
侦察
INCLUDEPICTURE
"../../../小剪头.tif"
\
MERGEFORMAT
察看
焦急
INCLUDEPICTURE
"../../../小剪头.tif"
\
MERGEFORMAT
着急
颓丧
INCLUDEPICTURE
"../../../小剪头.tif"
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MERGEFORMAT
颓唐
震惊
INCLUDEPICTURE
"../../../小剪头.tif"
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MERGEFORMAT
吃惊
冷淡
INCLUDEPICTURE
"../../../小剪头.tif"
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MERGEFORMAT
冷漠留心
INCLUDEPICTURE
"../../../小剪头.tif"
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MERGEFORMAT
留意
踌躇不前
INCLUDEPICTURE
"../../../小剪头.tif"
\
MERGEFORMAT
犹豫不前
苦难
INCLUDEPICTURE
"../../../小剪头.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\小剪头.tif"
\
MERGEFORMATINET
灾难　　侵蚀
INCLUDEPICTURE
"../../../小剪头.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\小剪头.tif"
\
MERGEFORMATINET
腐蚀
沉积
INCLUDEPICTURE
"../../../小剪头.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\小剪头.tif"
\
MERGEFORMATINET
堆积
频繁
INCLUDEPICTURE
"../../../小剪头.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\小剪头.tif"
\
MERGEFORMATINET
屡次
方案
INCLUDEPICTURE
"../../../小剪头.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\小剪头.tif"
\
MERGEFORMATINET
方法
显著
INCLUDEPICTURE
"../../../小剪头.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\小剪头.tif"
\
MERGEFORMATINET
明显
迅速
INCLUDEPICTURE
"../../../小剪头.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\小剪头.tif"
\
MERGEFORMATINET
快速
忧患
INCLUDEPICTURE
"../../../小剪头.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\小剪头.tif"
\
MERGEFORMATINET
祸患
反复
INCLUDEPICTURE
"../../../小剪头.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\小剪头.tif"
\
MERGEFORMATINET
多次
模仿
INCLUDEPICTURE
"../../../小剪头.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\小剪头.tif"
\
MERGEFORMATINET
仿照
灵巧
INCLUDEPICTURE
"../../../小剪头.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\小剪头.tif"
\
MERGEFORMATINET
灵活
秘密
INCLUDEPICTURE
"../../../小剪头.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\小剪头.tif"
\
MERGEFORMATINET
奥秘
启示
INCLUDEPICTURE
"../../../小剪头.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\小剪头.tif"
\
MERGEFORMATINET
启发
横七竖八
INCLUDEPICTURE
"../../../小剪头.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\小剪头.tif"
\
MERGEFORMATINET
杂乱无章
改观
INCLUDEPICTURE
"../../../小剪头.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\小剪头.tif"
\
MERGEFORMATINET
改变
保持
INCLUDEPICTURE
"../../../小剪头.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\小剪头.tif"
\
MERGEFORMATINET
维持
栖息
INCLUDEPICTURE
"../../../小剪头.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\小剪头.tif"
\
MERGEFORMATINET
休息
隐蔽
INCLUDEPICTURE
"../../../小剪头.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\小剪头.tif"
\
MERGEFORMATINET
隐藏
宽敞
INCLUDEPICTURE
"../../../小剪头.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\小剪头.tif"
\
MERGEFORMATINET
宽广
轻而易举
INCLUDEPICTURE
"../../../小剪头.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\小剪头.tif"
\
MERGEFORMATINET
易如反掌
四、反义词
紧张
INCLUDEPICTURE
"../../../剪头新.tif"
\
MERGEFORMAT
轻松
伤害
INCLUDEPICTURE
"../../../剪头新.tif"
\
MERGEFORMAT
保护
颓丧
INCLUDEPICTURE
"../../../剪头新.tif"
\
MERGEFORMAT
振作
冷淡
INCLUDEPICTURE
"../../../剪头新.tif"
\
MERGEFORMAT
热情
若无其事
INCLUDEPICTURE
"../../../剪头新.tif"
\
MERGEFORMAT
郑重其事
踌躇不前
INCLUDEPICTURE
"../../../剪头新.tif"
\
MERGEFORMAT
勇往直前
凶猛
INCLUDEPICTURE
"../../../剪头新.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\剪头新.tif"
\
MERGEFORMATINET
温顺　　
肥沃
INCLUDEPICTURE
"../../../剪头新.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\剪头新.tif"
\
MERGEFORMATINET
贫瘠
松散
INCLUDEPICTURE
"../../../剪头新.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\剪头新.tif"
\
MERGEFORMATINET
紧密
破坏
INCLUDEPICTURE
"../../../剪头新.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\剪头新.tif"
\
MERGEFORMATINET
保护
敏锐
INCLUDEPICTURE
"../../../剪头新.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\剪头新.tif"
\
MERGEFORMATINET
迟钝　　
安全
INCLUDEPICTURE
"../../../剪头新.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\剪头新.tif"
\
MERGEFORMATINET
危险
灵巧
INCLUDEPICTURE
"../../../剪头新.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\剪头新.tif"
\
MERGEFORMATINET
笨拙　清楚
INCLUDEPICTURE
"../../../剪头新.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\剪头新.tif"
\
MERGEFORMATINET
模糊
提高
INCLUDEPICTURE
"../../../剪头新.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\剪头新.tif"
\
MERGEFORMATINET
降低
宽敞
INCLUDEPICTURE
"../../../剪头新.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\剪头新.tif"
\
MERGEFORMATINET
狭窄
灾难
INCLUDEPICTURE
"../../../剪头新.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\剪头新.tif"
\
MERGEFORMATINET
幸运
轻而易举
INCLUDEPICTURE
"../../../剪头新.tif"
\
MERGEFORMAT
INCLUDEPICTURE
"H:\\RJ4下单元部分所需文件\\点拨
四年级语文下R\\剪头新.tif"
\
MERGEFORMATINET
来之不易
五、词语积累
含有一对反义词的词语：
争先恐后
弃暗投明
取长补短
舍近求远
空前绝后　顶天立地
形容数量多的词语：
成百上千　成千上万
不计其数　　数不胜数
比比皆是　　　不胜枚举
不可胜数　
多如牛毛
描写河流的词语：
清澈见底　九曲回肠
一泻千里　波光粼粼
含有数字的词语：
横七竖八　五颜六色　三头六臂
五花八门　四面八方
形容不费力气的词语：
轻而易举　探囊取物　举手之劳
唾手可得　手到擒来　兵不血刃
信手拈来　易如反掌
描写树木的词语：
古树参天　万木争荣　绿树成荫
郁郁葱葱　枝繁叶茂　树大根深
玉树琼枝
六、词语搭配
(焦急)地说　
(关心)地说
(紧张)地看着
　(淡定)地看着
(若无其事)地答道
(郑重其事)地答道
(成百上千)的幼龟
(难以计数)的幼龟
(深重)的苦难
(沉重)的苦难
(清朗)的夜空
　(高远)的夜空
(灵巧)地避开
(敏捷)地避开
(漆黑)的夜里　
(寂静)的夜里
(绿色)的植被　(翠绿)的植被
(无限制)地开垦放牧
(无计划)地开垦放牧
(天然)的保护层
(异想天开)的命令
(不切实际)的命令
(轻而易举)地超过
(非常容易)地超过
(人工)的保护层
七、积累句型
第9课　自然之道
“被”字句：那只幼龟被向导引向大海，巢中的幼龟得到错误信息，以为外面很安全，于是争先恐后地结伴而出。
第10课　黄河是怎样变化的
比喻句：人们都说，黄河是中华民族的摇篮。
第11课　蝙(biān)蝠(fú)和雷达
设问句：在漆黑的夜里，飞机怎么能安全飞行呢？原来是人们从蝙蝠身上得到了启示。
第12课
　大自然的启示
感叹句：生物真是人类的好老师啊！