1.They're speaking to each other.2.We must all help each oth

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/07/13 15:57:41

1.They're speaking to each other.2.We must all help each other.
第一个句子加了to,因为speak to是个词组,为什么第二个句子help后面不加个in,构成一个词组,

1、speak 有两种用法.作为及物动词,后面只能跟语言（如 speak English 讲英语）或话语（speak the truth 说实话,speak words of sympathy 说一些同情的话）之类的名词作宾语；如果要表达“对某人说话”,speak 则是不及物动词,必须和表示“向”之意的介词 to 以后才能带表示人的名词或代词作宾语.
2、help 也有两种用法
1）及物动词,后面可以直接跟表示人的帮助对象作宾语.help in sb.或者 help sb.in 中的 in 是副词,意思是“把某人搀扶进来”,如：
He helped in his grandmother.（或者 He helped his grandmother in.）他搀扶着祖母进屋.
—— 如果宾语是代词,宾语只能放在副词 in 前.如：
Please help him in.把他搀扶进来.
They helped each other in.他们互相搀扶着进来.
2）不及物动词,后面加介词 in 表示的是“帮助干某事”或“ 在…方面给予帮助”,其宾语是事物,如：
They often help in the farm work in our village.他们常常帮助我们村干农活.
He helped in the recent affair.他在近期的事务中给予帮助.

1.They're speaking to each other.2.We must all help each oth We must help each other. They're speaking to each other.这句话中为什么speaking后面加to we must l_ from each other ahd help each other We must help each other and-------from each other. 填词1.We must help each other and l___ from each other. what did they say to each other?they both said must help eac We may not get to see each other.的句型转换____we____see each oth We must learn from each other and help ______ each other We must(h )each other We should help each other They like help each other .help each other 提问