题目内容
If you study in America,you need to know some classroom customs.
When the teacher asks a question,you 1 to give an answer.If you do not understand the question,you should put up your hand and ask the teacher to 2 the question.If you do not know the answer,it is all 3 to tell the teacher that you do not know.Then he or she may know 4 you need to learn.
There is 5 for not doing your homework.If you are absent(缺席的),you should call your teacher or someone 6 is in your class and ask for the homework.It is not the teacher's responsibility to remind you 7 your missed homework.
You must not be absent on a test day.If you are 8 ill,call and let the teacher 9 you can't be there for the test.If your teacher allows you to make up the test,you should take the test within one or two days after returning to class.Serious illness is the only reason for 10 a test.
Be on time! It is considered rude to be late.Also,it disturbs other students. 11 you come late,be sure to be quiet.Have your books and papers out of your bag 12 you enter the room.Then come in and go to your seat quietly.In the U.S. it is not necessary to knock when you enter the classroom.If you must leave during a class,do so quietly.There is no need to ask for the teacher’s permission.Before entering a teacher’s office or 13 office with a closed door,knock first,then wait to 14 in.
__15 in class is considered impolite by many teachers.Some teachers may ignore it,but you should get permission first.
1.A.expected B.are expecting C.are expected D.expect
2.A.pardon B.repeat C.ask D.raise
3.A.wrong B.right C.stupid D.helpful
4.A.what B.how C.how many D.why
5.A.no use B.no time C.no chance D.no excuse
6.A.those B.who C.which D.whose
7.A.on B.to C.in D.of
8.A.hardly B.strongly C.badly D.mostly
9.A.knows B.to know C.know D.knew
10.A.not attending B.taking C.not missing D.passing
11.A.For B.Once C.Even if D.Although
12.A.after B.while C.before D.as soon as
13.A.any B.all C.anyone D.a
14.A.be noticed B.be invited C.be stopped D.let
15.A.With a hat B.In a hat C.Putting on a hat D.Wearing a hat
1~5 CBBAD 6~10 BDCCA 11~15 BCABD
Why can’t some birds easily catch locusts(蝗虫)? It is because locusts change their colors together with the change of the colors of crops. When crops are green, locusts look green. But as autumn comes, locusts change to the same brown color as crops have. Some other insects with different colors from plants are easily found and eaten by others. So they have to hide themselves for lives in the day and appear only at night.
If you study the animal life, you’ll find the main use of coloring is to protect themselves. Bears, lions and other animals can’t be easily seen by hunters. This is because they have the colors much like the trees.
Have you ever noticed an even more strange thing? A kind of fish in the sea can send out black liquid when it faces danger. While the liquid spreads over, its enemies can’t find it. And it quickly swims away. So it has lived up to now though it is not strong at all.
【小题1】 From the article we learn that locusts .
A.are dangerous to their enemies | B.are easily found by birds |
C.change their colors to protect themselves | D.are small animals |
A.They have to move quietly. |
B.They hide themselves in the day and appear at night. |
C.They have the colors much like their enemies. |
D.They run away quickly. |
A.they live in forests | B.they like brown and grey colors |
C.they move quietly | D.they have the colors similar to the trees |
A.气体 | B.固体 | C.液体 | D.水蒸气 |
A.The Main Use of Colors for Animals and Insects |
B.Colors of Different Animals and Insects |
C.The Change of Colors for Animals and Insects |
D.The Change of Different Animals and Plants |