Scientists are ________ ________ ________ ________ ________ to protect the pandas in danger．
My mother always tells me ________ out alone at night．
[ ]
A．
go
B．
not go
C．
not to go
D．
don't go
用方框中所给词的适当形式完成短文
The leopard(豹) is one of the 1 in danger．There are 2 leopards in the world now．Poachers(偷猎者) are 3 leopards for their fur．People should stop 4 leopard fur coats．If people did that,poachers wouldn't kill the leopards because they would do it for 5 ．
Leopards 6 in high grass．They eat and sleep in trees and they eat antelopes．
Leopards 7 yellow-brownish fur and on their stomach there's a little lighter 8 ．Leopards'enemies are lions．
Leopards are excellent tree climbers．Leopards have to bring their food up into the trees so the lions won't take it 9 ．Lions can't climb trees very 10 because they are clumsy(笨拙的)．
1．________
2．________
3．________
4．________
5．________
6．________
7．________
8．________
9．________
10．________
－Why did you get up so early?
－________ the first bus．
[ ]
A．
Catch
B．
Catching
C．
To catch
D．
Caught
Many people threw lots of litter into the river before,so it made the water ________．
[ ]
A．
clean
B．
dirty
C．
clear
D．
clearly
阅读理解
We provide summer English courses and you will enjoy learning about American culture and improve your English．The courses last for 4 weeks．They start at the beginning of July and August．Our teachers are very experienced．They teach English classes for 4 hours a day．You can choose between small groups of 2 or 3,or larger groups of up to15．We provide weekly tests to see the progress you're making with your language skills．We also provide books and other materials．
As well as learning English,we want you to experience life in the USA．You live with an American family and take part in American life．You have meals with them and do some activities with them,too．This is the most interesting part of the course．Many families create friendships with the students．Of courses,if you prefer,we can arrange hotel accommodation．
Of course,you can do many things in Los Angeles．Every day we have activities after class．You can choose to take trips to Hollywood,Disneyland or the famous beaches around LA．You can also go to various shopping centres,sports centres,movies and concerts．There are also weekend visits organized to San Francisco and other places of interest in California．
Well,if you're interested,please fill in our application form where you will also find our list of prices．The courses must be paid for one month before it begins．
(1)
How long do the English courses last?
[ ]
A．
4 days．
B．
2 weeks．
C．
3 weeks．
D．
4 weeks．
(2)
Why do organizers(组织者)advise students to live with American families?
[ ]
A．
Students are not rich enough to live in hotels．
B．
Students can have meals with American families．
C．
Students can experience life in the USA．
D．
Students can teach Americans how to cook Chinese food．
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