中学英语单词用法总结学习精编turn和twice和typical等
turn [tɜːn]
n.[C]轮流，(轮流的)顺序 ‖v.①旋转，翻转;②转
变，转弯;③使……变化
It was cloudy this morning, but fortunately it has turned fine.今天早上是阴天，幸好已经转晴了。
They answered the teacher’s questions in turn.他们依次回答了老师的问题。( in turn依次，轮流地]
I feel cold and I'd like to turn the heat up a little.我觉得冷。想把取暖器开大一点。[ turn up开大.
调大〕
Please turn the radio down. I'm trying to sleep.请把收音机的音位拧小，我想睡觉。[ turn do，减少，关小〕
Is it possible for such a person to turn himself into a good writer?这样的人有可能成为一名优秀作家吗?
【turn... into…把……变成……〕
If you don't like the programmes, you can simply turn off the television.要是你不喜欢这些节目，你完全可以把电视关掉。[ turn off 把……关掉]
Please turn on the light for me, it’s getting dark.天耍黑了，请把灯给我打开。( turn on打开]
短语：1.take one’s turn to do/doing sth 轮流做某事
2.It’s one’s turn to do sth 轮到某人做某事
3.turn on/off 打开/关闭
4.turn up/down 调高/调低
5.turn over 翻转
6.turn back 转身
背单词的好方法
随时随地背单词
不知不觉背单词
单词不用记
twice [twaɪs]
adv. 两次；两倍
Our study group gets together twice a week.我们的学习小组每周集中活动两次。
I am more than twice as old as he.我的年龄是他的两倍还不止。
two [tuː]
num二；两个.
At that time he had two helpers.当时他有两个助手。
typical ['tɪpɪk(ə)l]
adj.典型的
It is typical of him to take hard jobs.抢重活干就是他的特点。
Directions: After reading the passage below, fill in the blanks to make the passage coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.
A Live Map of Everywhere on Earth: Frightening or Cool?
Imagine turning on the GPS and seeing an image of your car from above. As the car drives, the map follows along in real time, (21)______ (alert) you to any traffic, pedestrians, animals, or other things nearby. Routes and names of roads appear over the livestream. It’s like the map has come to life.
This type of map isn’t available yet. But it could be soon. In 2014, the Worldview-3 satellite (22)______(launch) into space. Even though it circles round Earth at more than 370 miles (600 km) away, it can capture images of objects on Earth that are just 10 inches (25cm) across. Looking all the way from outer space, it can make out a smartphone (23)______ (hold) in your hand. It can tell what types of cars are traveling down a road. But it can’t identify your face or read the cars’ license plate numbers . . . at least not openly.
According to some reports, this satellite and other US spy satellites have the technology to take even (24)______ (sharp) images, with a resolution of up to around 4 inches (10cm). But US law forbids making these super-sharp pictures public, to prevent enemies from using them. But the idea (25)______ anybody might be able to spy on the entire Earth in such detail may seem frightening. Live, high-detail satellite mapping could probably be used to keep tags on anybody at any time, (26)______ the person’s knowledge. Ray Purdy of University College London told CNN that he is concerned about (27)______ this could mean for privacy. “Most satellites are commercially owned, so if you have money you can buy that imagery, (28)______ means anyone can spy on anyone,” he said.
At the same time, live, detailed maps of Earth’s surface (29)______ aid humanity in amazing ways.
Satellite images can help experts track storms as they form and chart their paths. At high detail, live maps of a disaster area could quickly and accurately reveal people in danger (30)______ ______ they could help rescuers determine the safest routes in or out in time. Higher detail may make it possible for farmers to watch over their crops or for prospectors to find minerals.
What do you think? Do you wish everyone could access high-detail live maps of Earth’s surface?
