No one knows when such a custom first _____.
A. came into power B. came into being
C. came true D. came out
高一英语单项填空简单题
No one knows when such a custom first _____.
A. came into power B. came into being
C. came true D. came out
高一英语单项填空简单题查看答案及解析
No one knows when such a custom first _____.
A. came into power B. came into being
C. came true D. came out
高一英语单项填空中等难度题查看答案及解析
No one knows when such a custom first _____.
A. came into power B. came into being
C. came true D. came out
高一英语单项填空中等难度题查看答案及解析
No one knows for sure when such a custom first _____.
A. came into power B. came into being C. came true D. came out
高一英语单项填空简单题查看答案及解析
.
No one knows when such a custom first __________.
| A．formed | B．came into being |
| C．was come into being | D．was forming |
高一英语单项填空简单题查看答案及解析
. No one knows when exactly the lake _____.
A. took its place B. came into being C. happened D. came over
高一英语单项填空简单题查看答案及解析
Such a custom came into _______ long ago.
A．being B．use C．service D．existence
高一英语单项填空中等难度题查看答案及解析
No one really knows exactly of when the first people arrived in we now know as California
A．where B．when C． what D．which
高一英语单项填空中等难度题查看答案及解析
Almost every machine with moving parts has wheels, yet no one knows exactly when the first wheel was invented or what it was used for. We do know, however, that they existed over 5,500 years ago in ancient Asia.
The oldest known transport wheel was discovered in 2002 in Slovenia. It is over 5,100 years old. Evidence suggests that wheels for transport didn't become popular for a while, though. This could be because animals did a perfectly good job of carrying farming tools and humans around.
But it could also be because of a difficult situation. While wheels need to roll on smooth surfaces（光滑表面）, roads with smooth surfaces weren't going to be built until there was plenty of demand for them. Finally, road surfaces did become smoother, but this difficult situation appeared again a few centuries later. There had been no important changes in wheel and vehicle design before the arrival of moden road design.
In the mid-1700s, a Frenchman came up with a new design of road—a base layer (层) of large stones covered with a thin layer of smaller stones. A Scotsman improved on this design in the 1820s and a strong, lasting road surface became a reality. At around the same lime, metal hubs (the central part of a wheel) came into being, followed by the pneumatic tyre(充气轮胎) in 1846. Alloy(合金) wheels were invented in 1967, sixty years after the appearance of tarmacked roads (柏油路). As wheel design took off, vehicles got faster and faster.
1. What might explain why transport wheels didn't become popular for some time?
A. Few knew how to use transport wheels.
B. Humans carried farming tools just as well.
C. Animals were a good means of transport.
D. The existence（存在）of transport wheels was not known.
2.How is the last paragraph mainly developed?
A. By giving examples.
B. By making comparisons.
C. By giving discussion
D. By making classifications.(分类)
3.What is the passage mainly about?
A. The beginning of road design.
B. The development of transport wheels.
C. The history of public transport.
D. His invention of fast-moving vehicles.
高一英语阅读理解简单题查看答案及解析
When the expression first came into being, people refused （拒绝）to use it but _____ they began to accept it.
A. usually B. gradually C. entirely D. quickly
高一英语单项填空中等难度题查看答案及解析