译林版（三起）六年级上册《Unit 7 Protect the Earth》2021年同步练习卷（第4课时）（1）

一、单项选择。

• 1．Look!There are too many ________ in the river．（　　）

  A．fish

  B．plastic

  C．rubbish

  D．water
  组卷：120引用：6难度：0.5

  解析

• 2．We________use too many plastic bags．（　　）

  A．should

  B．shouldn't

  C．can
  组卷：11引用：2难度：0.8

  解析

• 3．Trees help _______ the air clean.（　　）

  A．keeping

  B．to keep

  C．keep

  D．keeps
  组卷：20引用：1难度：0.8

  解析

• 4．Water is__________.（　　）

  A．use

  B．using

  C．reuse

  D．useful
  组卷：23引用：2难度：0.6

  解析

• 5．We can use water ____________things．（　　）

  A．to clean

  B．cleaning

  C．clean

  D．cleans
  组卷：77引用：8难度：0.8

  解析

二、按要求完成句子

• 14．Mr White flew a model plane with us.（改成否定句）
  Mr White

  a model plane with us.
  组卷：3引用：1难度：0.7

  解析

三、根据短文内容，选择正确答案。

• 15．根据短文内容，选择正确答案。
     The earth has a lot of water and it comes from rain .But most water is very salty（咸的）and is not good for people to drink .In fact（事实上），there is not so much clean water for us to drink every day .And some farms have not so much rain every year .So the earth is dry（干燥的）and farmers can not grow rice on the earth .
     We students should know it is good to save water and don't waster any water .we can reuse water in life .So our earth will not lack（缺乏）clean water any more .
  （1）Where does the water come from ？

  
  A．It comes from rain .
  B．It comes from the factory.
  C．It comes from farm .
  （2）Most of the water on the earth is

  .
  A．clean
  B．salty
  C．dirty
  （3）What else do we know about the water on the earth ？

  
  A．We have too much clean water.
  B．We do not have a lot of clean water .
  C．It is going to rain a lot all over the world .
  （4）Why can't some farmers grow rice ？

  
  A．Because the earth is dry .
  B．Because they are tired .
  C．Because they don't have farms .
  （5）What can we students do to save water ？

  
  A．Use more water .
  B．Don't drink water .
  C．Reuse water in our life .
  组卷：21引用：1难度：0.4

  解析