1.Also important is an arrangement for family members to communicate if there is an earthquake. 2.Although scientists still cannot predict earthquakes,they are learning a great deal about how the large plates in the Earth's crust move,the stresses between plates,how earthquakes work,and the general porbability that a given place will have an earthquake.
这是倒装句
Also important 是表语
is是系动词
an arrangement 是主语
for family members to communicate 是动词不定式的复合结构 作定语 修饰 an arrangement
if there is an earthquake是状语从句 .
2.Although scientists still cannot predict earthquakes这是让步状语从句 作状语,
they 是主语
are learning 是谓语
a great deal 是宾语 后面是介词短语 作定语
about是介词 后面是名词性从句 作介词宾语 是宾语从句
how 是连接副词
the large plates in the Earth's crust是宾从中的 主语
move是宾从中的 谓语,the stresses between plates是宾从主语的同位语,
后面是并列的 宾从 how earthquakes work,
后面是并列的介词about 的 宾语
也就是介词about后面有三个 并列的介词宾语 两个宾语从句 一个名词
and the general porbability 是并列的介词宾语
后面 是 porbability的 同位语从句that a given place will have an earthquake.
这是倒装句。An arrangement for family members to communicate if there is an earthquake is also important. 宾语前置。
这是复合句。主句为Although scientists still cannot predict earthquakes，they are learning about ....... 后面那一串都是宾补，how the large plates in the Earth's crust move,the stresses between plates,how earthquakes work,and the general porbability that a given place will have an earthquake，相当于and 并列句。