搜题请搜索小程序“爱下问搜题”
问题 填空题

某数的相反数比它的2倍还少1，设这个数为x，则可列方程为______．

答案

设这个数为x，

则可以得出，它的相反数为：-x，它的2倍为：2x，

∵某数的相反数比它的2倍还少1，

∴列出方程为：-x+1=2x．

阅读理解

阅读理解。

     EVENTS

     Long March exhibit

     The Shanghai History Museum is putting on an exhibition to mark the 60th anniversary of the Long March.

On show are more than 220 photos and 40 items that explain with picures how the communist Red Army

drew back from its besieged (被围困的) bases in Jiangxi Province and fought its way to northern Shaanxi

Province in the mid-1930s. Explanations are all in Chinese. The show will end on November 20.

      Time: 10:00 am-4:00 pm

     Address: 1286 Hongqiao Road

     Admission:8 yuan for Chinese / 15 yuan for foreigners

     Thai elephants

     Eight elephants from Thailand are entertaining visitors at Changfeng Park by riding bikes, playing basketball, balancing on a beam, dancing and blowing a mouth-organ. People are encouraged to have a tug-of-war (拔河比赛) with the animals or lie on the ground and have the elephants walk over them. The elephants give three

shows a day at 9:30 am, 3:30pm and 8:00 pm and there is an additional show at 1:30 pm at weekends. The

show will end on November 15.

     Address: 189 Daduhe Road

     Admission: 30-40 yuan

     Dancing dolphins

     Dolphins jumping from the water to touch a ball, swaying their bodies to music, kissing people and doing

math by tapping their tails have made the dolphinarium in Peace Park an attraction for children. Seals and sea

lions also perform.

     Hours: 10:30 am, 4:00 pm, and 7:30 pm

     Admission: 20 yuan for adults and 10 yuan for children.

1. If you go to visit the Long March exhibit with an Australian, how much will you pay altogether

    for the admission?

A. 16 yuan.

B. 23 yuan.

C. 30 yuan.

D. 20 yuan.

2. At the exhibition, you will see __________.

A. many articles written by famous writers

B. many things left by the Red Army

C. books on the Long March

D. many photos and pictures about the Long March

3. Which of the following is NOT done by the Thai elephants?

A. Riding bicycles.

B. Blowing a mouth-organ.

C. Doing math.

D. Having a tug-of-war with people.

4. The dolphinarium in Peace Park is a hall where you can see _____.

A. not only dolphins but also seals and sea lions perform

B. only dolphins perform

C. only seals and sea lions perform

D. only seals perform

查看答案
阅读理解

There were times when it was only schoolchildren who felt sick before they got their grades．But now teachers in Germany are scared, too, as they are being graded by their students.

Many teachers are opposed to it．They don’t mind being evaluated．But they are upset because the results are then being posted on the Internet and accessible to millions of Internet users．On the website www. spickmich.de during the past four months students have posted evaluations of 100,000 teachers.

The teachers are graded on categories such as “motivated”, “good instruction,” “easy examinations”, or even “sexy.” Many teachers think that their privacy has been violated.

The creators of the website say that the students are only being offered the chance to provide teachers with some feedback about their classroom instruction．Bernd Dicks, who founded the website with three friends, says that the students are largely quite satisfied with their teachers．On a grading scale of one to six, the teachers’ average grade is 2.7 and it has been improving lately．He often says the impression is that students are bullying（欺负） their teachers．But there is also bullying of the students by teachers.  

“Teachers must also learn to live with criticism,” he added．But still, the website is not totally immune from manipulation（操纵）, as one teacher near the northern city of Hanover recently proved．He registered himself on the website as a student and then rated his own teaching colleagues highly．Within a few days, seven of his colleagues were listed in the top 10 rankings of Germany’s best teachers.

45. Many teachers are opposed to the website because        .

A．their privacy has been violated         B．they are afraid of being assessed

C．their evaluations are unfair       D．the results are not satisfying

46．The founders of the website intended to         .

A．get the students to know their teachers better

B．conduct a survey on teachers’ performances

C．help the teachers to improve their teaching

D．change the teachers’ ways of giving instructions

47．From what the teacher in Hanover did, we can infer         .

A．he intended to help his colleagues

B．there was some disadvantage of the website

C．his colleagues were more popular than him

D．he wanted to know how he was evaluated

48．Which of the following can be the best title of the passage?

A．Teachers get graded by pupils  B．Teachers are angry with website

C．Teachers need self-assessment        D．New invention in assessing teachers
查看答案