3．It_took_more_than_two_decades，though，until 1951，for regular colour TV broadcasts to_begin in the USA.

翻译：________________________________________________________

　　It takes some time (for sb./sth.)to do sth.表示"做某事花费(......)多少时间"，可用"It takes(sb./sth.)some time to do sth."替换。

　　It took me three days to repair the house. 修房子花了我三天的时间。

　　It took us a week to finish the work. 完成这项工作花了我们一个星期的时间。

　　"花费"相关句型荟萃：

　　take

　　pay

　　spend

　　cost：Sth.costs sb.some money.

选词填空：cost/pay/spend/take

　　①It _____________ Jim two hours to walk to the station.

　　②I have to ____________ 20 pounds for this room each month.

　　③I _____________ two hours on this maths problem yesterday evening.

　　④How much does your pen ____________？

4．Satellites allow TV to be broadcast live over vast distances，with_everyone_receiving_the_same_broadcast at the same time.

翻译：________________________________________________________

with everyone receiving the same broadcast为with的复合结构，在句中作状语。

　　She felt nervous with the whole class staring at her.

　　由于全班都盯着她看，她感到紧张。

　　He becomes stronger and stronger with time going on.

　　时光流转，他变得越来越强壮。

　　with复合结构常在句中作定语或状语，其结构如下：

with＋宾语＋宾补