问题 填空题

如图所示是北京到青岛的T25次列车和4月18日第六次大提速后北京到四方的

车次车站天数到达开车车次车站到达开车里程
T25北京当日22:00D51北京6:500
天津西当日23:2123:23天津西7:547:55135
德州次日1:271:29德州9:179:18364
济南次日2:442:50淄博10:5911:00593
淄博次日4:124:14潍坊11:3911:40693
潍坊次日5:265:28四方12:43870
青岛次日7:47
D51列车的时刻表,请根据表所给的信息解决下列问题:

(1)从北京到潍坊乘坐D51次列车比T25次列车节约______时间.

(2)D51次列车从北京到潍坊的平均速度是______km/h(保留一位小数).

(3)D51次列车比T25次列车平均速度提高了______km/h(保留一位小数)

答案

(1)由列车时刻表可知,从北京到潍坊,

T25的运行时间为tT25=24:00-22:00+5:26=7:26=7h26min=446min,

D51的运行时间tD51=11:39-6:50=4:49=4h49min=289min,

从北京到潍坊乘坐D51次列车比T25次列车节约的时间t=446min-289min=157min;

(2)由列车时刻表可知,从北京到潍坊的路程s=693km,

D51的平均速度vD51=

s
tD51
=
693km
289
60
h
≈143.9km/h;

(3)从北京到潍坊T25的平均速度vT25=

s
tT25
=
693km
446
60
h
≈93.2km/h,

D51次列车比T25次列车平均速度提高△v=vD51-vT25=143.9km/h-93.2km/h=50.7km/h.

故答案为:(1)157min;(2)143.9;(3)50.7.

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French lessons in France

Whatever your level is, choosing to take French lessons in France is the best way to learn French. Place yourself in the local culture and practice your newly found skills in your free time.

You will be taught by native (本地的) French speakers who have a love for teaching and use excellent teaching techniques. Lessons are interesting and you will speak French on the first day both inside and outside the classroom.

Learners

● Suitable for all levels from beginners to advanced (高级的)

● Over 18 years old

Class Schedule (课表)

● Classes start on Mondays and run throughout the summer.

● Please arrive at the school by 8:15 am on your first day for a short level test. It will help to place you in the right class.

● Classes run from Monday to Friday each week.

● Classes start at 8:45 am each day depending on your level.

● You will have 3 classes per day lasting 55 minutes each.

● You will have a short break between classes.

Free Time and Tours

● The school offers a lot of cultural activities throughout the week. These activities can include cooking lessons, wine and cheese tasting, visits to Paris, cycling, movies and much more.

● You will have plenty of free time to explore (探索) the local area and practice your newly found language skills or just relax on this learning holiday with a difference.

Other Information

● You should bring a small dictionary, pens and paper with you.

Get more from your holiday, have fun, meet new people and take home a new language skill that will stay with you forever.

小题1:What is special about the French courses?

A.They are taught in small groups.

B.The teachers are young French speakers.

C.People learn French in and out of class.

D.They will offer a wine tasting license.小题2:On the first day, the students should ______.

A.take a language test

B.pay for their study

C.do a survey

D.introduce themselves to the class小题3:How many lessons are there in a week?

A.21.

B.30.

C.15.

D.12.小题4:We can learn from the text that the course ______.

A.is not suitable for teenagers

B.offers cooking classes as well

C.provides dictionaries for students

D.has a short game between classes