解析广西北海市合浦一中高二下学期周练物理试卷2 含解析
2015-2016学年广西北海市合浦一中高二（下）周练物理试卷（2）
一、选择题：（每题6分，共66分）
1．关于电子伏特（eV），下列说法中正确的是（）
A．电子伏特是电势的单位 B．电子伏特是电场强度的单位
C．电子伏特是能量的单位 D．1 eV=1.60×1019J
2．下列关于U=Ed说法正确的是（）
A．在电场中，E跟U成正比，跟d成反比
B．对于任何电场，U=Ed都适用
C．U=Ed只适用于匀强电场，d是电场中任意两点间距离
D．U=Ed只适用于匀强电场，d是沿着电场线方向两点间距离
3．关于等势面的说法，下列哪些说法是正确的（）
A．等势面和电场线处处垂直
B．同一等势面上的点场强大小必定处处相等
C．电荷所受电场力的方向必和该点等势面垂直，并指向电势升高的方向
D．在同一等势面上移动电荷，电场力一定不做功
4．关于电场力做功和电势差的说法中，正确的是（）
A．电势差的大小由电场力在两点间移动电荷做的功和电荷量决定
B．电场力在电场中两点间移动电荷做功的多少由这两点间的电势差和电荷量决定
C．电势差是矢量，电场力做的功是标量
D．在匀强电场中，与电场线垂直的某个方向上任意两点间的电势差均为零
5．下列措施中，不属于防止静电危害的是（）
A．油罐车后面有一条拖在地面上的铁链
B．小汽车上有一根露在外面的小天线
C．在印染厂中保持适当的湿度
D．在地毯中夹杂0.05mm～0.07mm的不锈钢丝导电纤维
6．某电场的电场线分布如图所示，以下说法正确的是（）
A．c点场强大于b点场强
B．a点电势小于b点电势
C．若将一试探电荷+q由a点释放，它将沿电场线运动到b点
D．若在d点再固定一点电荷﹣Q，然后将一试探电荷+q由a移至b的过程中，电势能减小7．在电场中A、B两点间的电势差为U AB=75V，B、C两点间的电势差为U BC=﹣200V，
则A、B、C三点电势高低关系为（）
A．φA＞φB＞φC B．φA＜φC＜φB C．φC＞φA＞φB D．φC＞φB＞φA
8．在一正点电荷电场中A、B两点间的电势差U AB=200V，将电量为+2×10﹣8C的电荷q
从A点移到B点，则下列说法中错误的是（）
A．电场力对电荷做正功4×10﹣6J
B．电荷q具有的电势能增大4×10﹣6J
C．电荷q的动能增大了4×10﹣6J
D．电荷q电势能的减小量等于动能的增加量
9．如图所示，是一个正电荷的电场，两虚线是以点电荷为圆心的同心圆，A、B两点的电势差为4V．有一个q=﹣1.0×10﹣8C的点电荷，从A点沿不规则曲线移到B点，电场力做功为（）
A．4.0×10﹣8J B．﹣4.0×10﹣8J
C．﹣2.5×10﹣9J D．路径不清，不能确定
10．如图所示，a、b、c是一条电场线上的三个点，电场线的方向由a到c．a、b间的距离等于b、c间的距离．用φa、φb、φc和E a、E b、E c分别表示三点的电势和场强，可以判定（）
A．φa﹣φb=φb﹣φc B．φa＞φb＞φc C．E a＞E b＞E c D．E a=E b=E c
11．如图所示表示某静电场等势面的分布，电荷量为1.6×10﹣9C的正电荷从A经B、C到达D点．则从A到D电场力对电荷做的功为（）
A．4.8×10﹣8J B．﹣4.8×10﹣8J C．8.0×10﹣8J D．﹣8.0×10﹣8J
二、计算题：（共34分）
12．如图所示的匀强电场中，有a、b、c三点，ab=5cm，bc=12cm，其中ab沿电场方向，bc和电场方向成60°角，一个电荷量为q=4×10﹣8C的正电荷从a移到b电场力做功为W1=1.2×10﹣7J求：
（1）匀强电场的场强E
（2）电荷从b移到c，电场力做功W2
（3）a、c两点的电势差U ac．
2015-2016学年广西北海市合浦一中高二（下）周练物理
试卷（2）
参考答案与试题解析
一、选择题：（每题6分，共66分）
1．关于电子伏特（eV），下列说法中正确的是（）
A．电子伏特是电势的单位 B．电子伏特是电场强度的单位
C．电子伏特是能量的单位 D．1 eV=1.60×1019J
【考点】元电荷、点电荷．
【分析】本题考查学生对单位的理解，知道电子伏是能量的单位．
【解答】解：A、电子伏特是能量的单位，代表一个电子电位改变（增加或减少）单位伏特时其能量的改变量；故AB错误，C正确；
D、1eV=1.60×10﹣19J，故D错误；
故选：C．
2．下列关于U=Ed说法正确的是（）
A．在电场中，E跟U成正比，跟d成反比
B．对于任何电场，U=Ed都适用
C．U=Ed只适用于匀强电场，d是电场中任意两点间距离
D．U=Ed只适用于匀强电场，d是沿着电场线方向两点间距离
【考点】匀强电场中电势差和电场强度的关系．
【分析】（1）在电场中，电场强度E是由电场本身决定的，与其他的因素无关；
（2）U=Ed是根据在匀强电场中移动点电荷时，电场力做功与电势差的关系导出的公式，因此只适用于匀强电场，d是沿着电场线方向两点间距离，若不是沿着电场线方向，则使用公式U=Edcosθ．
【解答】解：A：在电场中，电场强度E是由电场本身决定的，与其他的因素无关，故A 错误；
BCD：U=Ed是根据在匀强电场中移动点电荷时，电场力做功与电势差的关系导出的公式，因此只适用于匀强电场，d是沿着电场线方向两点间距离，若不是沿着电场线方向，则使用公式U=Edcosθ，故BC错误，D正确．
故选：D
3．关于等势面的说法，下列哪些说法是正确的（）
A．等势面和电场线处处垂直
B．同一等势面上的点场强大小必定处处相等
C．电荷所受电场力的方向必和该点等势面垂直，并指向电势升高的方向
D．在同一等势面上移动电荷，电场力一定不做功
【考点】等势面．
【分析】电场中电势相等的各个点构成的面叫做等势面；等势面与电场线垂直，沿着等势面移动点电荷，电场力不做功．场强与电场线的分布情况有关．正电荷所受电场力与场强方向相同，负电荷所受电场力与场强方向相反．由此分析即可．
【解答】解：A、等势面与电场线的关系是：等势面和电场线处处垂直，故A正确．
B、电场中电势相等的各个点构成的面叫做等势面，等势面上各个点的场强大小情况要看具体的电场，场强不一定处处相等，故B错误；
C、负电荷所受电场力的方向必和该点等势面垂直，并指向电势升高的方向，而正电荷所受电场力的方向和该点等势面垂直，并指向电势降低的方向．故C错误．
D、电荷所受的电场力方向与等势面垂直，则在同一等势面上移动电荷时，电场力与速度方向一直垂直，电场力不做功，故D正确；
故选：AD
4．关于电场力做功和电势差的说法中，正确的是（）
A．电势差的大小由电场力在两点间移动电荷做的功和电荷量决定
B．电场力在电场中两点间移动电荷做功的多少由这两点间的电势差和电荷量决定
C．电势差是矢量，电场力做的功是标量
D．在匀强电场中，与电场线垂直的某个方向上任意两点间的电势差均为零
【考点】匀强电场中电势差和电场强度的关系．
【分析】电势差的定义公式：U AB=，是用比值法定义的，电势差与试探电荷无关，电
势差是标量；在匀强电场中，与电场线垂直的某个方向上为等势面．
【解答】解：A、电场中两点间的电势差与试探电荷无关，由电场本身和两点的位置共同决定，故A错误；
B、根据公式W AB=qU AB，电场力在两点间移动电荷做功的多少由两点间的电势差和该电荷的电荷量决定，故B正确；
C、公式：U AB=，是用比值法定义的，可知电势差是标量，电场力做的功是标量．故C
错误；
D、由于等势面与电场线垂直，所以在匀强电场中，与电场线垂直的某个方向上任意两点间的电势差均为零，故D正确；
故选：BD．
5．下列措施中，不属于防止静电危害的是（）
A．油罐车后面有一条拖在地面上的铁链
B．小汽车上有一根露在外面的小天线
C．在印染厂中保持适当的湿度
D．在地毯中夹杂0.05mm～0.07mm的不锈钢丝导电纤维
【考点】静电现象的解释．
【分析】静电危害是由于相互间不断摩擦，从而产生大量的静电，不及时导走，会出现放电危害．
【解答】解：A、油罐车在运输过程中，油和罐之间不断摩擦，从而产生大量的静电，通过后面装一条拖地的铁链，及时导走，这是防止静电危害．不符合题意．
B、小汽车上有一根露在外面的小天线，无线信号接收天线．符合题意．
C、印刷车间中，纸张间摩擦产生大量静电，所以印刷车间中保持适当的湿度，及时把静电导走，避免静电造成的危害．不符合题意．
D、不锈钢丝的作用是把鞋底与地毯摩擦产生的电荷传到大地上，以免发生静电危害．不符合题意．
本题选择不属于防止，故选：B．
6．某电场的电场线分布如图所示，以下说法正确的是（）
A．c点场强大于b点场强
B．a点电势小于b点电势
C．若将一试探电荷+q由a点释放，它将沿电场线运动到b点
D．若在d点再固定一点电荷﹣Q，然后将一试探电荷+q由a移至b的过程中，电势能减小【考点】电场线；电场强度；电势能．
【分析】电场线的疏密表示电场的强弱，沿电场线方向电势逐渐降低．判断电势能的高低可通过电场力做功来判断．注意电场线不一定与带电粒子的运动轨迹重合，除非电场线是直线，且初速度为0或与电场线平行．
【解答】解：A．电场线的疏密表示电场的强弱，b点比c点密，所以c点场强小于b点场强．故A错误．
B．沿电场线方向电势逐渐降低，所以a点电势大于b点电势．故B错误．
C．由于电场线是曲线，将一试探电荷+q由a点释放，运动轨迹不可能与电场线重合．故C错误．
D．在d点再固定一点电荷﹣Q，然后将一试探电荷+q由a移至b的过程中，电场力做正功，电势能减少．故D正确．
故选D．
7．在电场中A、B两点间的电势差为U AB=75V，B、C两点间的电势差为U BC=﹣200V，则A、B、C三点电势高低关系为（）
A．φA＞φB＞φC B．φA＜φC＜φB C．φC＞φA＞φB D．φC＞φB＞φA
【考点】电势差．
【分析】本题根据电势差与电势的关系：U AB=φA﹣φB，U BC=φB﹣φC，U AC=U AB+U BC，即可判断三点电势的高低关系．
【解答】解：由题意，U AB=φA﹣φB=75V，则得：φA＞φB；
U BC=φB﹣φC=﹣200V，则得：φB＜φC；
又U AC=U AB+U BC=（75﹣200）V=﹣125V，则得：φA＜φC；
故有：φC＞φA＞φB；故ABD错误，C正确．
故选：C．
8．在一正点电荷电场中A、B两点间的电势差U AB=200V，将电量为+2×10﹣8C的电荷q
从A点移到B点，则下列说法中错误的是（）
A．电场力对电荷做正功4×10﹣6J
B．电荷q具有的电势能增大4×10﹣6J
C．电荷q的动能增大了4×10﹣6J
D．电荷q电势能的减小量等于动能的增加量
【考点】电势能．
【分析】根据公式W AB=qU AB求解电场力做功；电场力做正功时，电荷的电势能将减小，相反，电势能将增加；根据动能定理分析动能的变化量．
【解答】解：
A、电场力对电荷做功为W AB=qU AB=2×10﹣8×200J=4×10﹣6J，是正功，故A正确．
B、电场力对电荷做正功4×10﹣6J，则其电荷电势能减小4×10﹣6J，故B错误．
C、根据动能定理：合外力对物体做的总功等于物体动能的变化，由于不知是否有其他力做功，所以不能确定动能的增加量，则电荷q的动能不一定增大4×10﹣6J，故C错误．
D、由上分析可知，电荷q电势能的减小量不一定等于动能的增加量，故D错误．
本题选错误的，故选：BCD
9．如图所示，是一个正电荷的电场，两虚线是以点电荷为圆心的同心圆，A、B两点的电势差为4V．有一个q=﹣1.0×10﹣8C的点电荷，从A点沿不规则曲线移到B点，电场力做功为（）
A．4.0×10﹣8J B．﹣4.0×10﹣8J
C．﹣2.5×10﹣9J D．路径不清，不能确定
【考点】电势差与电场强度的关系．
【分析】电场力做功与重力做功的特点类似，只与始末位置有关，与路径无关，根据公式W=qU列式求解即可．
【解答】解：由电场力做功的公式：W=qU=﹣1.0×10﹣8C×4=﹣4.0×10﹣8J
故选：B．
10．如图所示，a、b、c是一条电场线上的三个点，电场线的方向由a到c．a、b间的距离等于b、c间的距离．用φa、φb、φc和E a、E b、E c分别表示三点的电势和场强，可以判定（）
A．φa﹣φb=φb﹣φc B．φa＞φb＞φc C．E a＞E b＞E c D．E a=E b=E c
【考点】电势．
【分析】本题根据顺着电场线方向电势逐渐降低，判断电势关系；电场线的疏密表示电场强度的相对大小．根据匀强电场中场强与电势差的关系U=Ed，定性分析电势差的关系．
【解答】解：
ACD、只有匀强电场中U ab=φa﹣φb=Ed ab，这个关系成立，其余电场由于E是变化的，故这个关系不成立，该题只有一条电场线，不能确定电场线的分布情况，无法比较场强的大小，故无法比较两点间电势差关系，故A错误，C错误，D错误．
B、沿电场线方向电势降低，可以比较电势高低，根据电场线方向可知φa＞φb＞φc，故B
正确．
故选：B．
11．如图所示表示某静电场等势面的分布，电荷量为1.6×10﹣9C的正电荷从A经B、C到达D点．则从A到D电场力对电荷做的功为（）
A．4.8×10﹣8J B．﹣4.8×10﹣8J C．8.0×10﹣8J D．﹣8.0×10﹣8J
【考点】等势面．
【分析】根据W=qU可知，电场力做功和具体路径无关，只与初末位置的电势差有关，由此可正确解答．
【解答】解：A与D之间的电势差为：U AD=﹣40V﹣（﹣10V）=﹣30V．
W=qUAD=﹣4.8×10﹣8J，故ACD错误，B正确．
故选：B．
二、计算题：（共34分）
12．如图所示的匀强电场中，有a、b、c三点，ab=5cm，bc=12cm，其中ab沿电场方向，bc和电场方向成60°角，一个电荷量为q=4×10﹣8C的正电荷从a移到b电场力做功为W1=1.2×10﹣7J求：
（1）匀强电场的场强E
（2）电荷从b移到c，电场力做功W2
（3）a、c两点的电势差U ac．
【考点】匀强电场中电势差和电场强度的关系；电势能．
【分析】（1）根据电场力做功公式W=qEd，求解电场强度，d是电场线方向两点间的距离．（2）电场力做功公式W=qEd，求解电荷从b移到c电场力做功W2．
（3）先求出电荷从a到c电场力做功，再求解a、c两点的电势差U ac．
【解答】解：（1）由题，由W1=qEl ab得
E==
（2）电荷从b移到c电场力做功为
W2=qEl bc cos60°=4×10﹣8×60×0.12×0.5J=1.44×10﹣7J
（3）电荷从a移到c电场力做功为
W ac=W1+W2
则a、c两点的电势差为Uac===6.6V．
答：（1）匀强电场的场强E=60V/m．
（2）电荷从b移到c电场力做功W2=1.44×10﹣7J．
（3）a、c两点的电势差U ac=6.6V．
2016年10月7日
2019-2020学年度第一学期高二英语周练试卷(含答案)
2019-2020学年度第一学期高二英语周练试卷 第二部分：阅读理解（共两节，满分40分） 第一节（共15小题；每小题2分，满分30分） 阅读下列短文，从每题所给的四个选项中，选出最佳选项。 A Well, parents, surprise! Lots of us are using Twitter and Facebook to find rides, and not just to school. It’s awkward to call a friend and ask for a ride, and half the time they’ll say, “Sorry, my car is full.” But with Twitter, you just tweet #Ashleys Pool Party and look for other people heading the same way. It may sound risky, but many teens stay within their own social circles to find rides, and don’t branch out beyond friends when asking on Twitter. For me, I only rideshare with people I know, but to some young people, especially those taking longer trips, stranger danger is less of a concern. The sharing economy got big during the recession（经济衰退）. It allows people to access more goods and services using technology, while also allowing them to share cost. And that technology, for me, is what the car was for my mom, a gateway to more freedom. According to the researchers at the University of Michigan, 30 years ago, eight in ten American 18-year-olds had a driver’s license. Today it’s six in ten. So it’s not that surprising that on my 16th birthday I wasn’t rushing to get a license. All I wanted was an iPhone. Juliet Schor (Sociology professor at Boston College) knows people of my age love being connected and for young people driving means they have to disconnect from their technology, and that’s a negative. So if they could sit in the passenger side and still be connected, that’s going to be a plus. To me, another plus is ridesharing represents something more than trying to save money. I see it as evidence that people still depend on each other. My generation shares their cars and apartments the way neighbors used to share cups of sugar. For the system to work, some of us still need our own cars. But until I get my own version of the silver Super Beetle, you can find me on Twitter. 21 The writer usually rideshares with _____. A. anyone heading the same way B. people he knows
2017-2018学年高二年级周练二英语试卷
江西省安义中学2017-2018学年度上学期高二英语第二次周练试卷 第一节阅读理解 Life is not easy in senior high school. You’ve got the pressure of studies and exams. From time to time, you may feel depressed and frustrated. When depression strikes, you have to take measures to fight it. One of the strangest ways to fight depression is to eat salt, scientists have found. Salt acts as a natural anti—depressant (抗抑郁剂), researchers say. While too much can lead to high blood pressure and heart disease, not enough can cause “psychological(心理的) d epressions”, a study has reported. The study, by researchers at the University of Iowa in the US, discovered that when rats are deficient in salt, they don’t do activities they normally enjoy. The recommended daily salt intake for an adult is four grams, although experts say the body needs only half as much. However, most adults in the developed world consume（消耗）around ten grams a day, mainly because their diets contain high salt amounts. Today, 77 percent of US salt intake comes from processed and restaurant foods, like frozen dinners and fast food. The minerals in salt are required by the body—in small quantities—to help move liquid in and out of cells. But too much can cause diseases, for example high blood pressure. Today scientists are finding that salt is an addictive substance—almost like a drug. One s ign of addiction is using a substance even when it’s known to be harmful. Many people are told to eat less salt due to health concerns, but they have trouble doing so because they like the taste and find low-salt foods tasteless. Humans have a long histor y of eating salt. In the Stone Age, people didn’t need to find salt, because they hunted most of their food, and ate a lot of red meat, which has plenty of salt in it. But when people began to farm, about 10,000 BC, they started to eat mainly grains like rice and wheat, and very little meat. Then they had to find another way to get salt. 1. What does the underlined word "deficient" in the third paragraph mean? A. enough B. far from enough C. more than enough D. plenty 2. The major role of salt is to ____________. A. help the body work well B. help fight against depression C. help people get rid of an addiction to drugs D. help people enjoy sugary substances 3. Which of the following statements is true? A. People have trouble reducing salt because they don't know it is harmful to eat too much of it. B. Before 10,000 BC, human beings did not need salt. C. The richer the country is, the more salt is eaten there. D. Taking more than 4 grams of salt a day can be harmful for an adult's health. 4. What kind of food should people eat more of? A. Frozen food B. Fast food C. Red meat D Low--salt food 第二节：七选五 Everyone knows that the Frenchmen are romantic, the Italians are fashionable and the Germans are serious. Are these just stereotypes(刻板印象) or is there really such a thing as national character? And if there is, can it affect how a nation succeed or fail? At least one group of people is certain that it can. A recent survey of the top 500 entrepreneurs (企业家) in the UK found that 70% felt that their efforts were not appreciated by the British public. Britain is hostile (敌意的) to success, they said. It has a culture of jealousy(嫉妒)．__5__ Jealousy is sometimes known as the “green－eyed monster” and the UK is its home. Scientists at Warwich University in the UK recently tested this idea. They gathered a group of people together and gave each an imaginary amount of money.__6__ Those given a little were given the chance to destroy the large amount of money given to others— but at the cost of losing their own. Two thirds of the people tested agreed to do this. __7__. But there is also opposite evidence. The Organization for Economic Cooperation and Development recently reported that the UK is now the world's fourth largest economy. That is not bad for people who are supposed to hate success. People in the UK also work longer hours than anyone else in Europe. So the British people are not lazy, either. “It is not really success that the British dislike,” says Carey Cooper, a professor of management at the University of Manchester Institute of Science and Technology. “It’s people using their success in a way that seems proud or unfair or which separates them from their roots.” _8__ They set out to do things in their way. They work long hours. By their own efforts they become millionaires.__9__ It hardly seems worth following their example. If they were more friendly, people would like them more. And more people want to be like them. A. This seems to prove that the entrepreneurs were right to complain. B. The one who owns most money in the end is the winner.
高二英语周练
高二英语周练 第一节完形填空(共20小题；每小题1.5分，满分30分) 阅读下面短文，掌握其大意。然后从各题所给的四个选项中，选出最佳选项Nowadays many people enjoy 1 activities—walking, cycling or mountaineering. People often 2 the act of climbing high and difficult mountains to be astonishing. Why are men and women 3 to suffer cold and hardship, and to 4 on high mountains? This astonishment may be caused by the difference between mountaineering and other forms of activities to which men 5 their leisure time. There are no man-made rules, as there are for 6 sports as golf and football. There are, of course, principles of different kinds. It would be dangerous if you 7 them. But it is this freedom from man-made rules 8 makes mountaineering attractive to many people. Those who climb mountains are free to choose their own 9 . If we 10 mountaineering with other more familiar sports, we might think that one big difference is that mountaineering is not a kind of 11 work at all. 12 , it is only our misunderstanding. There are n o “matches” 13 “teams” of climbers, but when climbers are on a rock face linked by a rope which their lives may 14 , there is obviously teamwork. A mountain climber knows that he may have to fight with natural 15 that are stronger and more powerful than man. A mountain climber 16 to improve his skill year after year. A skier has probably passed his best by the age of thirty, and most tennis champions 17 in their early twenties. But it is not 18 for men of fifty or sixty to climb the highest mountains in the Alps. They may take more 19 to do that than younger men, but they probably climb more skillfully and with less effort, and they certainly experience equal 20 . 1. A. physical B. easy C. difficult D. mental 2. A. find B. respect C. treat D. consider 3. A. scared B. willing C. afraid D. suitable 4. A. have a break B. make sense C. take a risk D. lose weight 5. A. give B. hope C. discover D. receive 6. A. so B. various C. different D. such 7. A. applied B. worried C. ignored D. noticed 8. A. which B. that C. how D. why 9. A. methods B. tradition C. styles D. activities 10. A. contact B. relate C. replace D. compare 11. A. pair B. complex C. team D. simple 12. A. Otherwise B. Therefore C. Furthermore D. However 13. A. between B. within C. from D. beyond 14. A. keep on B. go on C. depend on D. focus on 15. A. storms B. forces C. energies D. strengths 16. A. tries B. wants C. continues D. decides 17. A. will be B. are C. appear D. is 18. A. unusual B. normal C. common D. frequent 19. A. gifts B. means C. brains D. time 20. A. astonishment B. ambition C. concern D. enjoyment 第二部分阅读理解阅读下面短文，从每题所给的A, B, C, D四个选项中，选出最佳选项。(共20小题, 每小题2分, 满分40分) A
2021年高二下学期英语周练试卷(尖子班重点班5.25) 含答案
丰城中学xx学年下学期高二英语周练试卷 2021年高二下学期英语周练试卷（尖子班重点班5.25）含答案 一、完形填空（共20小题，每小题2分，满分40分） Before my year abroad, everyone advised me to say “yes” to everything. They weren’t 1 . However, here in Germany, “I don’t mind” doesn’t seem to be an acceptable 2 . Neither does “I’ll do whatever you want to do” nor “Really, either way is fine by me”. It really is 3 yes or no. Despite having a huge smile on your face, most Germans will look at you 4 you’re unable to make a 5 , which of course isn’t true; we’re just bei ng really typically British. My first encounter (遭遇) of this was when I 6 the hotel for my first two nights in Germany. The 7 asked when I would like my breakfast in the morning. Being typically British, I replied saying whenever was 8 for her. She gave me a(n) 9 look and asked again. “No, when do you want to have 10 ? Er, OK ... err .... 8 am?” she smiled and I 11 quickly, “Only if that is12 for you though.” I knew about the British stereotype (模式化的形象) of 13 before I came abroad. However, I didn’t 14 how much truth there was to it until
高中英语周练 (单选+句子翻译+单句改错)50题
高中英语周练50题 （单选+句子翻译+单句改错） 1、That he hasn’t come is _____ he is busy writing the papers. A.that. B.why. C.because. D.the reason 2、One of the man held the point______ .(be) 这些人当中的一个支持那个观点-------书上说的是对的。 3、______________ many times ,he eventually did that (warn) 尽管被警告过多次，但他还是做了。 4、________________ ,he felt very afraid. (ask) 当被问到他父母时，他感到很害怕。 5、With ______________ ,some animals are facing the danger of dying out. (cut) 由于越来越多的森林被砍伐，一些动物正面临着灭绝的危险。 6、翻译： ①他一整天都在忙。(busy) ______________________ ②到1990年底，科学家们一直都在研究它。(develop) ___________________________________ ③这两天我给你打过几次电话。(ring)
_______________________ ④他试着着用酒精擦拭那污迹。(try) _________________________________ 7、If it were not for the fact ____________ ,she would attend tonight's voice of China. (fall) 要不是她生病了，她今晚就会参加中国好声音。 8、Tom wont come tonight, __________________ we will not hold the party.(case) 汤姆今晚不来了，这样的话，我们就不举办宴会了。9、It's usually warm in my hometown ,but it _____ be rather cold sometimes. A.must. B.can. C.should. D.would 10、------Where is my dictionary ？I remember I put it here yesterday. -------You _____ put it in the wrong place. A.could have. B.might have. C.might. D.should have 11、_____ ,I have to stay home. A.I was ill. B.Being ill. C.Because of ill. D.Because of I was ill 12、_____ a traffic jam, it is to lose patience. A.Being caught in. B.Caught in. C.Catching in.
【新步步高】高二英语外研版选修六完型阅读周周练：Test含答案_3
Test 6 The battle was followed by a terrible storm.Therefore，it wasn’t until October 26 that Vice-Admiral(海军中将) Collingwood was __1__ to send off his report to Britain __2__ the victory and Nelson’s death. He chose __3__ the task one of the smallest ships in his fleet Pickle __4__ by Captain Lapenotiere.In spite of __5__ winds and rough seas，Pickle made the __6__ of more than 1,000 miles in just over eight days，__7__ Falmouth on the morning of November 4. From there，Captain Lapenotiere __8__ a fast post chaise(轻便马车)to London，travelling __9__ for 37 hours.He reached the Admiralty in Whitehall at 1 a．m. on Wednesday，November 6—less than 11 days after he had __10__ Collingwood. Most of the officials had gone to bed __11__，but the secretary was still __12__ in the famous Board https://www.360docs.net/doc/9910360660.html,penotiere hurried in and __13__ the report with the simple words，“Sir，we have gained a great victory.But we have __14__ Lord Nelson.” Copies of the report were quickly made and __15__ to the Prime Minister and King George Ⅲ.A special edition of a __16__ was rushed out and delivered all over the country. The atmosphere of public __17__ for the victory was weakened by widespread sorrow for the
西南位育2016学年第二学期英语周练(五)
西南位育初三2016学年第二学期英语周练（五）
III. Complete the following passage with the words or phrases in the box. Each
novels, plays, travel books, and so on. And in reading books of this kind the important thing is to get on with the reading; to try to grasp (领会) __50__ the writer is going to tell you in the book as a whole (整体而言). This is __51__ if you stop and think over the meaning of every single word which happens to be unfamiliar (不熟悉). You can not enjoy a story if you stop lots of times on every page for __52__ words in the dictionary. You may even prevent __53__ from understanding the story as a whole by doing this. V. Complete the following sentence as required. 64. Tell Jerry the news when you see him, please. （否定句） Please ______ ______ Jerry the news when you see him. 65. I was born on June 4, 1992. （对划线部分提问） ______ ______ you born? 66. The detective discovered some important clues for the case. （改为被动语态） Some important clues for the case ______ ______ by the detective. 67. The poor child was so lucky that she received many books from the charity. (改为简单句) The poor child was ______ ______ to receive many books from the charity. 68. To stop wild animals getting close to us, we lit a fire in the forest. (保持句意不变) To ______ ______ wild animals, we lit a fire in the forest. 69. Did they forget to turn off the lights before leaving? I don’t know.(改为宾语从句) I don’t know ______ they ______ to turn off the lights before leaving. 70. Brush your teeth at least twice every day. （改为反义疑问句）
2020高二英语上学期周练8
山西省××市和诚高中2018-2019学年高二英语上学期周练8 时间：60分钟总分100分出题人： 2018年10月21日 一、完形填空（每题2分，共40分） A cactus(仙人掌)stood all alone in the desert, wondering why it was stuck in the middle of nowhere． “I do nothing but 1 here all day,” it sighed．“What 2 am I ? I'm the ugliest plant in the desert. I can't 3 any passing traveler with shade or juicy fruit．I don't see what I can do 4 ．”All it did was stand in the sun day after day, growing taller and fatter．Its spines grew longer and its leaves tougher…It truly was st range-looking． “I wish I could do something useful,” it 5 ．By day, eagles circled high overhead．“What can I do with my life?” the cactus called．Whether they heard or not, the eagles sailed 6 ． At night, the moon floated into the sky and 7 its pale light on the desert．“What good can I do with my life?” the cactus called．The moon only stared coldly as it went on its way． A lizard（蜥蜴）moved by, 8 a little trail （痕迹）in the sand with its tail．“What worthy thing can I do?” the cactus called．“You?” the lizard laughed, pausing a moment．“Worthy deed? Why, you can't do 9 ! You do nothing but get uglier every day．” And so it 10 year after year．At last the cactus grew 11 , and it knew its time was short．“Oh, God” it cried out, “I've 12 so long, and I've tried so hard． 13 me if I've failed to find something worthy to do．I am afraid that now it is too 14 .” But just then the cactus felt a strange stirring and unfolding．A flow of joy drove away all 15 . At its very tip, like a sudden crown, a beautiful 16 suddenly opened. 17 had the desert known such a blossom. Its fragrance went through the air far and wide and brought 18 to all passing by． In the desert, a voice was sounding．“You have waited long, and the heart which seeks（寻求）to do good will always bring something 19 to the world, something for which all can be happy ---- 20 for only a moment.” 1. A. lie B. sit C. sleep D. stand 2. A. good B. advantage C. use D. help 3. A. provide B. lend C. offer D. make 4. A. after all B. at last C. at all D. in all 5. A. smiled B. stated C. announced D. sighed 6. A. away B. out C. up D. down 7. A. turned B. threw C. lit D. burnt 8. A. sweeping B. running C. leaving D. passing 9. A. anything B. nothing C. something D. everything
17学年上学期高二第13周英语周练(附答案)(20200222174434)
横峰中学2016-2017学年度上学期 高二英语第十三周周练试卷 命题人：汪佳嘉 第一节：阅读理解（每题 2.5分，共10分） What is the nature of the scientific attitude, the attitude of the man or woman who studies and applies physics, chemistry, geology, engineering, medical or any other science? We all know that science plays an important role in the societies in which we live. Many people believe, however, that our progress depends on two different aspects of science. The first of these is the application of the machines and products that scientists and technologists develop. New drugs, faster and safer means of transport, new systems of applied knowledge are some examples of this aspect of science. The second aspect is the application of the special methods of thought and action that scientists use in their work. What are these special methods of thinking and acting? First of all, it seems that a successful scientist is full of curiosity — he wants to find out how and why the universe works. He usually directs his attention towards problems which he notices have no satisfactory explanation, and his curiosity makes him look for underlying relationships even if the data available seem to be unconnected. Moreover, he thinks he can improve the existing conditions, whether of pure or applied knowledge, and enjoys trying to solve the problems which this involves. He is a good observer, accurate, patient and objective and applies persistent and logical thought to the observations he makes. He uses the facts he observes to the full extent. For example, trained observers acquire a very large amount of information about a star mainly from the accurate analysis of the simple lines that appear in a spectrum. He is skeptical —he does not accept statements which are not based on the most complete evidence available — and therefore rejects authority as the sole basis for truth. Furthermore, he is not only critical of the work of others, but also of his own, since he knows that man is the least reliable of scientific instruments and that a number of factors tend to