1.选择题- (共15题)
6.阅读下面信息, 请从以下选项中选出符合各段意思的小标题, 选项中有一项是多余选项。
Traffic Safety Tips
If you are among those who think that traffic safety tips are something that need to be given to children and not adults, you are so very young. Being an adult, it is our responsibility to set a good example for others. Remember when you are driving a car with your teenaged son or daughter sitting next to you, he or she is watching you and observing how you drive. So make sure that you follow all the necessary traffic rules to set a good example. Some of the effective traffic safety tips are mentioned below.
{#blank#}1{#/blank#}
The first thing that you are supposed to do, and make sure that others in the car also do, is to put your seat belt on. In case there is a child in the car between the age of 4 and 8, a booster seat（儿童座椅）should be used as safety belts are not meant for small children and cannot protect them in case of accidents. Kids under the age of 12 should never sit on the front seat.
{#blank#}2{#/blank#}
Do you drive, listen to music, eat your sandwich and speak on the phone all at the same time? If you do this, you are not displaying your super powers but allowing multiple things to distract you. Once you are driving, be it alone or with your friends and family, you are responsible for everyone present in the car. So stop doing other things and focus on driving safe.
{#blank#}3{#/blank#}
Driving under pressure with your mind filled with problems at work or at home would easily allow you to distract your mind off the road leading to an accident. So make sure that you don't let the things outside your car affect you when you are in the car.
{#blank#}4{#/blank#}
Your emotions or impatience may make you break the signal at times. Or break the speed limit because you are getting late. Don't do that! The consequences for that may actually be enough to separate you from your driver's license on a permanent basis. Make sure you obey the traffic rules and guidelines and do all to be a responsible citizen.
{#blank#}5{#/blank#}
Last but not the least, keep your car in good condition. Make sure you are giving your car for servicing and maintenance on time. Make sure you always check your vehicle tires before hitting the road and don't run out of gas!
So these were some of the main traffic safety tips that should be followed by one and all in order to stay safe and be an example for others. Remember, rules and regulations are made for your own benefit and safety. So make sure that you obey them. Take care and have a safe ride.
| A. Be in a Good Mood B. Don't Try to many things C. Don't Break the Signal D. Stay Focused on the Road E. Keep Your Vehicle in Good Condition F. Put Your Seat Belt On |
If you are among those who think that traffic safety tips are something that need to be given to children and not adults, you are so very young. Being an adult, it is our responsibility to set a good example for others. Remember when you are driving a car with your teenaged son or daughter sitting next to you, he or she is watching you and observing how you drive. So make sure that you follow all the necessary traffic rules to set a good example. Some of the effective traffic safety tips are mentioned below.
{#blank#}1{#/blank#}
The first thing that you are supposed to do, and make sure that others in the car also do, is to put your seat belt on. In case there is a child in the car between the age of 4 and 8, a booster seat（儿童座椅）should be used as safety belts are not meant for small children and cannot protect them in case of accidents. Kids under the age of 12 should never sit on the front seat.
{#blank#}2{#/blank#}
Do you drive, listen to music, eat your sandwich and speak on the phone all at the same time? If you do this, you are not displaying your super powers but allowing multiple things to distract you. Once you are driving, be it alone or with your friends and family, you are responsible for everyone present in the car. So stop doing other things and focus on driving safe.
{#blank#}3{#/blank#}
Driving under pressure with your mind filled with problems at work or at home would easily allow you to distract your mind off the road leading to an accident. So make sure that you don't let the things outside your car affect you when you are in the car.
{#blank#}4{#/blank#}
Your emotions or impatience may make you break the signal at times. Or break the speed limit because you are getting late. Don't do that! The consequences for that may actually be enough to separate you from your driver's license on a permanent basis. Make sure you obey the traffic rules and guidelines and do all to be a responsible citizen.
{#blank#}5{#/blank#}
Last but not the least, keep your car in good condition. Make sure you are giving your car for servicing and maintenance on time. Make sure you always check your vehicle tires before hitting the road and don't run out of gas!
So these were some of the main traffic safety tips that should be followed by one and all in order to stay safe and be an example for others. Remember, rules and regulations are made for your own benefit and safety. So make sure that you obey them. Take care and have a safe ride.
7.阅读理解
According to a new scientific research, we are rapidly going close to major climate change and the effects on the environment could be quite serious. Geographers predict that climate zones could completely disappear within the next eighty years. Where will crops be grown if this happens? When the climate changes a lot, polar regions will get colder and tropical regions will get even hotter. As a result, where will animals be forced to move on the earth?
Climate changes like these could lead to the spread of diseases. Tropical storms and hurricanes(飓风) will not only increase but may also become stronger. If the changes come too quickly, animals and plants may not be able to adapt(适应) right away and could disappear from the earth.
According to Science Daily, a new study predicts that, by the year 2100, many of today's familiar climates will be taken place by climate unknown in today's world. It is urgent that we reduce the risks of far-reaching results for the whole world. The planet itself has been showing signs of change. In 2004, a huge tsunami created by a major earthquake killed thousands in Sumatra and in 2008, thousands more died in China in another big earthquake. Egypt was hit in 2009 with a major earthquake and Haiti was destroyed seriously and became ruins in 2010 by another big earthquake.
Not long ago, scientists discovered ice melting(融化) in west Antarctica(南极洲). This is very worrying because temperatures in this area have remained rather constant(不断的) and actually even lower at time. Melting occurs when temperatures increase and since temperatures have remained, the ice should not be melting. However, satellite data(数据) shows melting around west Antarctica.
Within just the last few months, new reports from around the world have been coming in and most agree that our climate situation is much worse than previously expected. At this point, it doesn't matter what is causing it, but rather, what can be done about it. On the other hand, our world is getting more and more unstable(不稳定) every year. Natural disasters(灾难) are becoming more frequent(频繁的) and serious.
However, other planets are experiencing global warming as well as our own and some scientists believe there may be some connections between these. No one knows anything for sure at this point because there is simply not enough data.
According to a new scientific research, we are rapidly going close to major climate change and the effects on the environment could be quite serious. Geographers predict that climate zones could completely disappear within the next eighty years. Where will crops be grown if this happens? When the climate changes a lot, polar regions will get colder and tropical regions will get even hotter. As a result, where will animals be forced to move on the earth?
Climate changes like these could lead to the spread of diseases. Tropical storms and hurricanes(飓风) will not only increase but may also become stronger. If the changes come too quickly, animals and plants may not be able to adapt(适应) right away and could disappear from the earth.
According to Science Daily, a new study predicts that, by the year 2100, many of today's familiar climates will be taken place by climate unknown in today's world. It is urgent that we reduce the risks of far-reaching results for the whole world. The planet itself has been showing signs of change. In 2004, a huge tsunami created by a major earthquake killed thousands in Sumatra and in 2008, thousands more died in China in another big earthquake. Egypt was hit in 2009 with a major earthquake and Haiti was destroyed seriously and became ruins in 2010 by another big earthquake.
Not long ago, scientists discovered ice melting(融化) in west Antarctica(南极洲). This is very worrying because temperatures in this area have remained rather constant(不断的) and actually even lower at time. Melting occurs when temperatures increase and since temperatures have remained, the ice should not be melting. However, satellite data(数据) shows melting around west Antarctica.
Within just the last few months, new reports from around the world have been coming in and most agree that our climate situation is much worse than previously expected. At this point, it doesn't matter what is causing it, but rather, what can be done about it. On the other hand, our world is getting more and more unstable(不稳定) every year. Natural disasters(灾难) are becoming more frequent(频繁的) and serious.
However, other planets are experiencing global warming as well as our own and some scientists believe there may be some connections between these. No one knows anything for sure at this point because there is simply not enough data.
8.阅读理解
When Dean Arnold got his first job, he was miserable (痛苦的), Each time he went to work, he coughed and he couldn't breathe. Working in a bakery(面包房) when you are allergic to (对…过敏) flour can be painful.
But Arnold stayed with the National Biscuit Company for ten years. He was a businessman and he helped them improve production. At last his health problems became too serious. He left and formed his own company.
With his wife and mother, he founded Arnold Bakery. They tried new recipes (配方). changing the kind and amount of flour used. This enabled Arnold to work there without too much pain. The bread, made with unbleached flour (标准粉), was baked in a brick oven (烘炉).
They began by baking two dozen loaves(条). The bread was sold door to door for fifteen cents a loaf. Winning customers to his unusual, old-fashioned bread took time. But Arnold, struggling against his allergy, built his bakery into one of the largest in the United States.
When Dean Arnold got his first job, he was miserable (痛苦的), Each time he went to work, he coughed and he couldn't breathe. Working in a bakery(面包房) when you are allergic to (对…过敏) flour can be painful.
But Arnold stayed with the National Biscuit Company for ten years. He was a businessman and he helped them improve production. At last his health problems became too serious. He left and formed his own company.
With his wife and mother, he founded Arnold Bakery. They tried new recipes (配方). changing the kind and amount of flour used. This enabled Arnold to work there without too much pain. The bread, made with unbleached flour (标准粉), was baked in a brick oven (烘炉).
They began by baking two dozen loaves(条). The bread was sold door to door for fifteen cents a loaf. Winning customers to his unusual, old-fashioned bread took time. But Arnold, struggling against his allergy, built his bakery into one of the largest in the United States.
10.
阅读下面材料, 在空白处填入适当的内容(一个单词)或括号内单词的正确形式。将答案填写在答题卷的相应位置。
Everyone seems{#blank#}1{#/blank#}(have) his or her own holiday. Dad has Father's Day. Mom has Mother's Day. Children have Children's Day. {#blank#}2{#/blank#}(lover)have Valentine's Day. But is there a special day{#blank#}3{#/blank#}older people?
Of course. The Chongyang Festival is the holiday when Chinese people show love for their{#blank#}4{#/blank#}（old）. Celebrated on the ninth day of the ninth lunar month, the festival is also known as the Double Ninth Festival. Nine is the{#blank#}5{#/blank#}(high) digit(数字), so it{#blank#}6{#/blank#}(regard)that the two together mean a long life.
The festival comes {#blank#}7{#/blank#}the golden time of autumn. The clear weather and the joy of harvest make for a happy atmosphere. On the day, people{#blank#}8{#/blank#}(traditional)climb a mountain and carry dogwood(茱萸). People in ancient times believed{#blank#}9{#/blank#}the plant could drive away evil{#blank#}10{#/blank#}(spirit) and prevent people against cold in winter.
2.单选题- (共6题)
16.
一单摆的摆长为40cm，摆球在t=0时刻正从平衡位置向右运动，若g取10 m／s2，则在1s时摆球的运动情况是：
| A．正向左做减速运动，加速度正在增大 | B．正向左做加速运动，加速度正在减小 |
| C．正向右做减速运动，加速度正在增大 | D．正向右做加速运动，加速度正在减小 |
18.
如图所示，理想变压器原线圈接在交流电源上，副线圈向电阻R1、R2和R3供电， A为交流电流表，V为交流电压表，开关S闭合后与闭合前相比( )
| A．V示数变大，A示数变小R1消耗的电功率变大 |
| B．V示数变大，A示数变大，R1消耗的电功率大 |
| C．V示数变小，A示数变小，R1消耗的电功率变小 |
| D．V示数变小，A示数变大，R1消耗的电功率变小 |
19.
分别用220 V和1100 V的电压输电，输送电功率相同，导线材料和送电距离也相同。若要输电线路上的功率损失也相同，则所用导线的截面积之比是（ ）
| A．25∶1 | B．5∶1 | C．1∶5 | D．1∶25 |
20.
理想变压器的原副线圈匝数之比为4：1，若在原线圈上加u=1410Sin100t(V)的交变电压，则在副线圈两端用理想交变电压表测得的电压是：
| A．250V | B．352.5V | C．203.8V | D．327.5V |
21.
我国家用照明电路电压瞬时值可表示为：
| A．u=380sin3.14t(V) | B．u=311sin314t(V) |
| C．u=220sin314t(V) | D．u="36sin0.02t(V)" |
3.多选题- (共5题)
22.
一质点作简谐运动，图象如图所示，在0.2s到0.3s这段时间内质点的运动情况是：
A. 沿负方向运动，且速度不断增大
B. 沿负方向运动的位移不断增大
C. 沿正方向运动，且速度不断增大
D. 沿正方向的加速度不断减小
A. 沿负方向运动，且速度不断增大
B. 沿负方向运动的位移不断增大
C. 沿正方向运动，且速度不断增大
D. 沿正方向的加速度不断减小
23.
图中的y-x图线表示一列简谐波沿x轴传播时的波形图，若以图示的情况为计时起点，那么下面的y-t图线表示的是（）
| A．当这列波沿x轴的正方向传播时，是表示a质点的振动图象 |
| B．当这列波沿x轴的负方向传播时，是表示a质点的振动图象 |
| C．当这列波沿x轴的正方向传播时，是表示b质点的振动图象 |
| D．当这列波沿x轴的负方向传播时，是表示b质点的振动图象 |
25.
如图所示是一列简谐波在某一时刻的波形，λ代表波长。则：
| A．C质点的振幅是0 |
| B．BC两质点平衡位置间距是λ／4 |
| C．该时刻速度最大的质点是A、C、E |
| D．在质点A振动一周期时间内，波由A点传到E点 |
4.解答题- (共4题)
27.
如图所示，实线为t1 = 0时刻的图象，虚线为t2 = 0.1s时刻的波形。
试求：
（1）若波的传播方向为+x方向，波速多大？
（2）若波的传播方向为-x方向，波速多大？
（3）若波速为450m／s，波沿什么方向传播？
试求：
（1）若波的传播方向为+x方向，波速多大？
（2）若波的传播方向为-x方向，波速多大？
（3）若波速为450m／s，波沿什么方向传播？
28.
某交流发电机输出功率为5×105 W，输出电压为1.0×103 V，已知输电线的总电阻R =" 40" Ω，在输电线上损失的电功率等于输电功率的5%，用户使用电压U="380" V.输电所使用的变压器均为理想变压器。
（1）画出输电线路的示意图.（标明各部分的符号）
（2）求所用升压和降压变压器的原、副线圈的匝数比各是多少？
（1）画出输电线路的示意图.（标明各部分的符号）
（2）求所用升压和降压变压器的原、副线圈的匝数比各是多少？
29.
如图为交流发电机的示意图．正方形线框处于匀强磁场中，已知边长L=10cm，磁感应强度B=1T，线圈匝数n=100，线圈电阻r=5
，外电路负载电阻R=5，线圈以10r/s的转速匀速转动．从图示位置开始计时，两块电表均为理想电表。（无理数一律保留原形，不必求值！）
(1)写出该发电机产生的电动势的瞬时值e的表达式；
(2)求电流表示数I和电压表示数U．
，外电路负载电阻R=5，线圈以10r/s的转速匀速转动．从图示位置开始计时，两块电表均为理想电表。（无理数一律保留原形，不必求值！）(1)写出该发电机产生的电动势的瞬时值e的表达式；
(2)求电流表示数I和电压表示数U．
30.
如图所示，边长为
的单匝正方形线圈在磁感应强度为B的匀强磁场中，以
边为轴匀速转动，角速度为
，转轴与磁场方向垂直，线圈电阻为R。
求:
（1）线圈从图示位置转过
的过程中产生的热量Q。
（2）线圈从图示位置转过的过程中通过线圈某截面的电量
。
的单匝正方形线圈在磁感应强度为B的匀强磁场中，以边为轴匀速转动，角速度为，转轴与磁场方向垂直，线圈电阻为R。求:
（1）线圈从图示位置转过
的过程中产生的热量Q。（2）线圈从图示位置转过
的过程中通过线圈某截面的电量。5.实验题- (共1题)
试卷分析
-
【1】题量占比
选择题:(15道)
单选题:(6道)
多选题:(5道)
解答题:(4道)
实验题:(1道)
-
【2】：难度分析
1星难题：0
2星难题：0
3星难题：0
4星难题：0
5星难题：0
6星难题：15
7星难题：0
8星难题：1
9星难题：0