Sometimes we wish that we could have more time. The good news is that this year will be longer than the previous! Although don’t get excited just yet, because if you blink (眨眼), you may just miss it. That’s because 2015 will be one second longer than 2014 －also known as a leap second (闰秒). And surprisingly, they are pretty common. But why do we need them?
Over the centuries, Earth has been slowing down. This means that we must keep changing our clocks to keep in step with Earth’s time. We’ve all heard of leap years. Our calendars hold 365 days in a year. Yet Earth takes slightly longer to orbit the sun. So we save this time and every 4 years we have an extra day in February.
As for the leap seconds, the International Earth Rotation Service (IERS) manages the global time, known as the atomic time(原子钟时间). This is the timekeeping that’s used for every single country.
To keep up with Earth’s time, they add a second every now and then. They’ve been doing this since 1972. And this year will be the 26th second they’ve added!
It’ll be added just before 8:00 a.m. on July 1 Beijing time. So you will see 7:59:60 on July 1.
Although adding a second sounds harmless, it can have negative effects. In 2012 when a leap second was added, it caused problems for companies like social networking sites Reddit and LinkedIn. As they weren’t prepared for the change, it caused their computers to record errors.
1.Why does a leap second have to be added in some years?
A. Because this year is shorter than the previous one. B. Because we need to have more time.
C. Because the Earth is slowing down. D. Because it can help make a leap year.
2.In a leap year, there is an extra day in_____.
A. January B. February C. March D. December
3.In order to keep up with Earth’s time, how many seconds have been added until last year?
A. 43 B. 42 C. 26 D. 25
4.What’s the negative effect of adding a leap second?
A. It makes the day longer than the previous one. B. It causes some recording errors for companies.
C. It makes people stay up late. D. It does harm to people’s health.
九年级英语阅读理解困难题
Sometimes we wish that we could have more time. The good news is that this year will be longer than the previous! Although don’t get excited just yet, because if you blink (眨眼), you may just miss it. That’s because 2015 will be one second longer than 2014 －also known as a leap second (闰秒). And surprisingly, they are pretty common. But why do we need them?
Over the centuries, Earth has been slowing down. This means that we must keep changing our clocks to keep in step with Earth’s time. We’ve all heard of leap years. Our calendars hold 365 days in a year. Yet Earth takes slightly longer to orbit the sun. So we save this time and every 4 years we have an extra day in February.
As for the leap seconds, the International Earth Rotation Service (IERS) manages the global time, known as the atomic time(原子钟时间). This is the timekeeping that’s used for every single country.
To keep up with Earth’s time, they add a second every now and then. They’ve been doing this since 1972. And this year will be the 26th second they’ve added!
It’ll be added just before 8:00 a.m. on July 1 Beijing time. So you will see 7:59:60 on July 1.
Although adding a second sounds harmless, it can have negative effects. In 2012 when a leap second was added, it caused problems for companies like social networking sites Reddit and LinkedIn. As they weren’t prepared for the change, it caused their computers to record errors.
1.Why does a leap second have to be added in some years?
A. Because this year is shorter than the previous one. B. Because we need to have more time.
C. Because the Earth is slowing down. D. Because it can help make a leap year.
2.In a leap year, there is an extra day in_____.
A. January B. February C. March D. December
3.In order to keep up with Earth’s time, how many seconds have been added until last year?
A. 43 B. 42 C. 26 D. 25
4.What’s the negative effect of adding a leap second?
A. It makes the day longer than the previous one. B. It causes some recording errors for companies.
C. It makes people stay up late. D. It does harm to people’s health.
九年级英语阅读理解困难题查看答案及解析
Sometimes we wish we could stop time and go back in time. Well, twice a year, some countries actually decide to______the time.
As summer begins, some countries, like the US, UK and most of other countries in the EU, move the time forward one hour: 12 o’clock becomes 1 o’clock. This is to give people one more hour of ____. This is called “daylight saving time (夏令时时间)”.
But as winter arrives, you’ll notice the darkness stays with us______. The sun doesn’t enjoy being out as often as in the summer. To deal with this, these countries turn the clocks______one hour: 1 o’clock goes back to 12 o’clock.
Countries have done this for about 100 years. At some point, most of the world has tested with it. In fact, from 1986 to 1991, China used daylight saving time.
By having another hour of sunlight, you can save______by not needing to turn the lights on. Also, it can help the economy (经济), as people enjoy shopping when it is brighter. But people think it disrupts (打乱) sleeping habits. And because mornings are darker, the______of people getting to work and school is a problem.
1.A. change B. stop C. pass
2.A. sleep B. sports C. sunlight
3.A. shorter B. longer C. slower
4.A. back B. up C. forward
5.A. money B. energy C. time
6.A. life B. tradition C. safety
九年级英语完型填空中等难度题查看答案及解析
We wish that we could be better at sports or more attractive. We wish we had nicer clothes or more money. Everyone likes to feel that he or she is special. , many of us grow up believing that we’re not special at all. We believe we are not good enough just as we are.
Most parents want us to be the best we can be. Very often, they compare (比较)us to . By doing this, they try to encourage us to do better. They well, but the message we often get is that we’re not good enough. We begin to believe that the only way we can be special is being better than someone else, but we are often disappointed(失望). There will always be someone out there who is better than we are at . Plenty of people around may not be as smart as we are, but they are better at sports. Or they may not be as good-looking, but they have more money. It is for us to be better than everyone else all the time.
We all want the things that we believe will make us better people. But very often we don’t realize that we already have us the very things that we want. These things make us others. When we are growing up, sometimes forget to tell us that we are special, that we are good enough. Maybe no one told them when they were growing up. , it’s up to us to remind them from time to time that each of us, in our own way, is special. What we are is enough.
1.A. Again B. Next C. Otherwise D. However
2.A. other B. others C. another D. the others
3.A. believe B. work C. mean D. show
4.A. to B. on C. by D. in
5.A. something B. anything C. everything D. nothing
6.A. helpful B. impossible C. necessary D. important
7.A. inside B. among C. around D. for
8.A. worse than B. better than C. different from D. the same as
9.A. friends B. scientists C. parents D. doctors
10.A. Also B. Anyway C. Although D. After all
九年级英语完形填空困难题查看答案及解析
Be Yourself
We wish that we could be better at sports or more attractive．We wish we had nicer clothes or more money．Everyone likes to feel that he or she is special．__________ , many of us grow up believing that we're not special at all．We believe we are not good enough just as
we are．
Most parents want us to be the best we can be． Very often, they compare us to __________．By doing this, they try to encourage us to do better．They __________ well, but the message we often get is that we're not good enough．We begin to believe that the only way we can be special is __________ being better than someone else, but we are often disappointed (失望)．There will always be someone out there who is better than we are at __________ Plenty of people around may not be as smart as we are, but they are better at sports．Or they may not be as good-looking, but they have more money, It is __________ for us to be
better than everyone else all the time．
We all want the things that we believe will make us __________ people．But very often we don't realize that we already have __________ us the very things that we want．These things
make us different from others．When we are growing up, __________ sometimes forget to tell us that we are special, that we are good enough．Maybe no one told them when they were growing up．__________ , it's up to us to remind them from time to time that each of us, in our own way, is special．What we are is enough．
1.A.Again B.Next C.Otherwise D.However
2.A.other B.others C.ourselves D.themselves
3.A.believe B.work C.mean D.show
4.A.to B.on C.by D.in
5.A.something B.anything C.everything D.nothing
6.A.helpful B.impossible C.necessary D.important
7.A.smarter B.kinder C.better D.happier
8.A.inside B.among C.around D.for
9.A.friends B.scientists C.parents D.doctors
10.A.Also B.Anyway C.Although D.After all
九年级英语完型填空困难题查看答案及解析
Be Yourself
We wish that we could be better at sports or more attractive．We wish we had nicer clothes or more money．Everyone likes to feel that he or she is special．__________ , many of us grow up believing that we're not special at all．We believe we are not good enough just as
we are．
Most parents want us to be the best we can be． Very often, they compare us to __________．By doing this, they try to encourage us to do better．They __________ well, but the message we often get is that we're not good enough．We begin to believe that the only way we can be special is __________ being better than someone else, but we are often disappointed (失望)．There will always be someone out there who is better than we are at __________ Plenty of people around may not be as smart as we are, but they are better at sports．Or they may not be as good-looking, but they have more money, It is __________ for us to be
better than everyone else all the time．
We all want the things that we believe will make us __________ people．But very often we don't realize that we already have __________ us the very things that we want．These things
make us different from others．When we are growing up, __________ sometimes forget to tell us that we are special, that we are good enough．Maybe no one told them when they were growing up．__________ , it's up to us to remind them from time to time that each of us, in our own way, is special．What we are is enough．
1.A. Again B. Next C. Otherwise D. However
2.A. other B. others C. ourselves D. themselves
3.A. believe B. work C. mean D. show
4.A. to B. on C. by D. in
5.A. something B. anything C. everything D. nothing
6.A. helpful B. impossible C. necessary D. important
7.A. smarter B. kinder C. better D. happier
8.A. inside B. among C. around D. for
9.A. friends B. scientists C. parents D. doctors
10.A. Also B. Anyway C. Although D. After all
九年级英语完型填空困难题查看答案及解析
Be yourself
We wish that we could be better at sports or more attractive. We wish we had nicer clothes or more money. Everyone likes to feel that lie or she is special.____ ____ , many of us grow up believing that we’re not special at all. We believe we are not good enough just as we are.
Most parents want us to be the best we can be. Very often, they________us to others. By doing this, they try to encourage us to do better. They mean well, but the message we often get is that we’re not good enough. We begin to believe that the only way we can be special is by being better than someone else, but we are often_______.There will always be someone out there who is better than we are at something. Plenty of people around may not be as smart as we are, but they are better at sports. Or they may not be as good-looking, but they have more money. It is ______ for us to be better than everyone else all the time.
We all want the things that we believe will make us better people. But very often we don’t realize that we already have________us the very things that we want. These things make us different from others. When we are growing up, ______sometimes forget to tell us that we are special, that we are good enough. Maybe no one told them when they were growing up. Anyway, it’s up to us to remind them from time to time that each of us, in our own way, is special. What we are is enough.
1.A. Again B. Next C. Besides D. However
2.A. describe B. compare C. introduce D. prefer
3.A. lonely B. forgetful C. disappointed D. nervous
4.A. helpful B. impossible C. necessary D. unfair
5.A. inside B. among C. around D. for
6.A. friends B. scientists C. parents D. doctors
九年级英语完型填空极难题查看答案及解析
We believe that the new Silk Road will provide more countries with a good _______ to know about China.
A.purpose B.chance C.memory D.level
九年级英语单选题简单题查看答案及解析
根据所给的中文完成句子翻译，并将其答案写在答题卡的相应位置上。
1.多亏了这个新的政策，我们目前有了更多睡眠的时间。
the new policy, we have more time to sleepat present.
2.春天里, 孩子们情不自禁到户外去庆祝这个多彩的季节。
Signs of spring are everywhere. Children__ going outside to celebrate this colorful season.
3.我们应该把动物视为我们的朋友，要保护他们。
We should _____animals _____our friends and protect them.
4.如果你集中精力去学习， 成绩很快就会提高。
If you ______ your lessons, your grades will soon be improved.
5.那条裙子不适合你在冷天里穿。
The dress you to wear in cold weather.
6.当别人说话时请不要打断他们，那是不礼貌的。
Don’t ________others when they are talking. It is not polite.
7.所有的学生对于老师们的辛勤工作很感激。
8.你可以给我提供一份你要买的东西的清单吗?
9.雨天使我伤感。
10.夜已经深了，但是他们一点都不觉得累。
11.你从邮箱中收到过邮件吗？
九年级英语翻译中等难度题查看答案及解析
—Shall we go to the park this weekend?
—_______.
A.You’re right B.Have a good time C.Thank you D.That’s a good idea.
九年级英语单选题中等难度题查看答案及解析
—I’m going to Sanya for the summer holiday.
—________!
A.Have a good time B.Well done C.Best wishes to you D.Thanks a lot
九年级英语单项填空简单题查看答案及解析