My work keeps me in Hong Kong most of the year，but I try to get away for a month in summer，usually in July．Now as you probably know，that’s the main　1　season in Europe．The favorite places for vacations and the famous cities are usually very　2　． But I’m not seeking(寻求) the sun—I can get lots of 　3　in Hong Kong—and I’m certainly not seeking the crowds！So　4　I go on vacation，I buy a Train Pass(a kind of train ticket) that allows me first-class travel on most of the railways of Western Europe．First-class compartments(车厢) are　5　crowded and they are very comfortable．If you’re going on　6　trip, you can take a sleeping train for an extra charge．There are usually dining cars(餐车) in the train．
I find that train travel is restful and　7　．There’s always　8　to see．I particularly(特别地) enjoy　9　through Switzerland and Italy．You can get a very good　10　of what a country is like from a train because you don’t go too fast and you stop quite often．Also train travel is very safe，and I am never sick on a train　11　I am on a ship. Then there are always people to　12　to if you feel like a chat.
The reason that I seldom(很少) travel by plane is quite　13　: because train stations are usually built in the centre．I don’t have to　14　transport(运输工具), transport can be a problem when arriving by　15　．

Mosquitoes(蚊子)can be seen everywhere all over the world, especially in summer. And there are more than 2,500 kinds of them.

__43_likes the mosquito, but the mosquito may like you. She thinks your blood is delicious.

She? Yes, she. It’s true that the male(雄性)mosquito doesn’t bite(咬)and only the female mosquito bites because she 　44 blood(血液)to lay eggs. She is always 　45 things or people she wants to bite. If she likes what she finds, she will bite. But if she doesn’t like your blood, she 　46 to someone else for more delicious blood. Next time a mosquito bites you, just remember you’re different from others.

If the mosquito likes you, she will land on your body 　47 letting you know. She bites you 48 quickly and quietly that you may feel nothing. After she bites, you will have an itch(痒)on your body because she puts something from her mouth together with your blood. By the time the itch begins, she has 　49　 .

And then what happens? Well, after her delicious 　50　 ,it’s dark. The mosquito feels　 51 .

She just wants to find a place to have a good rest. There, on a leaf or a wall, she begins to lay eggs, 　52　 eggs.

( ) 43.A.Everyone　　　　　　　 B. No one　　　　　　 C. Someone

( ) 44.A.needs　　　　　　　　 B. need　　　　　　　 C. want

( ) 45.A.finding　　　　　　　　 B. wants　　　　　　　 C. looking for

( ) 46.A.will turn　　　　　　　 B. turns to　　　　　　 C. turn

( ) 47.A.with　　　　　　　　　 B. without　　　 　　　C. after

( ) 48.A.so　　　　　　　　　　 B. such　　　　　　　 C. very

( ) 49.A.flies away　　　　　　　 B. flew away　　　　　 C. flown away

( ) 50.A.breakfast　　　　　　　 B. dinner　　　　　　　 C. lunch

( ) 51.A.tiring　　　　　　　　 B. tired　　　　　　　　 C. relaxing

( ) 52.A.3 hundreds　　　　　　 B. hundred of　　　　　 C. hundreds of