题目内容
【题目】Middle school students should keep taking exercise every day ____ they are busy with so many subjects.
A.untilB.becauseC.thoughD.unless
【答案】C
【解析】
句意：中学生虽然课业很忙，但他们应该每天坚持锻炼。
考查连词。until直到……；because因为；though虽然；unless如果不，除非；根据句意理解可知，Middle school students should keep taking exercise every day与they are busy with so many subjects.前后两句是让步关系，所以这里应该用引导让步状语从句的连词though，故选C。
阅读快车系列答案【题目】 London Bridge is between the City of London and Southward. It is between Cannon Street Railway Bridge and Tower Bridge. London's original bridge made this one of the most famous bridge in the world.
The first London Bridge is thought to have been built by the Romans sometime in the first century, with several rebuild over the centuries. In the end, wooden bridges were replaced (代替) with a stone bridge, the first one being started in 1176 and finished years later. During its whole history, London bridge has been a busy thoroughfare (通道) and was once lined with shops. The road over the bridge was only about 4 meters wide between the shops. It was not wide enough and it was often crowded with people, horses and cars. In 1773 a keep left rule was enforced (强制执行) to keep the traffic moving. This became the rule of the road in Britain.
In 1757 the houses and shops on the bridge were pulled down. A new bridge was built in 1831 to replace the old one. This in turn was pulled down in 1967 and rebuilt in Lake Havasu City, USA, as a tourist attraction. The present London Bridge opened in 1973.
Location | Between the city of London and Southward |
Builders of the first London Bridge | 【1】 |
Materials used for the bridge | At the beginning Wood |
Later 【2】 | |
Building time of the stone bridge | The first bridge was started in 1776 |
A new bridge In 【3】 | |
The present bridge In 【4】 | |
The passage is about the 【5】 of London Bridge | |