Tibet is among the most popular places for Chinese tourists.

Tibet is among the most popular places for Chinese tourists.The number of travelers of Tibet has grown by 10％every year for a few years.Since July 1,2006,when the first train ran 1956 kilometers from Xining to Lhasa,more and more people have been going to Tibet.
The train stops at several famous places along the way,such as Qinghai Lake,Kunlun Mountain,and the Potala Palace.Passengers can also enjoy many activities during the journey,like Tibetan dancing and Karaoke.
On the train,passengers can have tea,eggs and noodles for breakfast,and fried chicken and green vegetables for lunch and dinner.Unlike most Chinese trains which have open-hole toilets,this one has special toilets which can collect the waste.There is also a special rubbish system(系统)in the train that keeps the environment clean.All the windows on the train can protect people from the bright sunlight.TV and electrical sockets(插座)for computers and mobile phones can be found on the train.
Because there isn't much oxygen there,trains will have oxygen masks(氧气罩)for those who
need them.It makes passengers feel more comfortable when they have enough oxygen on the famous "roof of the world".There are also doctors on the train to make sure that all of the travelers are safe.
( ) 41.Which of the following is not among the places of interest?
A.Qinghai Lake B.Karaoke.
C.Kunlun Mountain.D.The Potala Palace.
( ) 42.The train is unlike most Chinese trains except its_____.
A.windows B.toilets C.sockets D.rubbish
( ) 43.The underlined word"them"in the last paragraph refers to_____.
A.oxygen masks B.doctors C.oxygen D.passengers
( ) 44.We can learn from the passage that______.
A.flying to Tibet is impossible
B.train to Lhasa is too clean to take
C.train trip to Tibet is popular with travelers
D.taking train to Lhasa causes a lot of trouble
( ) 45.What's the best title of the passage?
A.Tibet-roof of the world B.Magic train to magic Tibet
C.Beautiful views in Tibet D.A comfortable trip to Tibet

The train stops at several famous places along the way,such as Qinghai Lake,Kunlun Mountain,and the Potala Palace.Passengers can also enjoy many activities during the journey,like Tibetan dancing and Karaoke.
第一题选B
Unlike most Chinese trains which have open-hole toilets,this one has special toilets which can collect the waste
第二题选B
第三题题目不全
第四无题通读选C和B