该图为“黄河源地区不同海拔和坡向的草地退化率分布图”,读图回答第8题。 下列说

题型:选择题

问题:

该图为“黄河源地区不同海拔和坡向的草地退化率分布图”,读图回答第8题。

下列说法正确的是

A.北坡草地分布的海拔较高

B.草地退化率与海拔呈正相关

C.退化率高的坡向光照条件较差

D.P处可能是当地牧民的夏季牧场

考点:地图的基本知识等值线地图的判读及综合应用地形剖面图
题型:选择题

阅读理解。

     Last year I went to an old-fashioned bar with Lisa and her mother. When it was my turn to order, I

had a problem. I was dyslexic (诵读困难的). I had difficulty reading words. I felt embarrassed

(尴尬的) about it and didn't want others to know it. Every time in restaurants I pretended (假装) that I

could understand menus and ordered something that almost every restaurant could have. Luckily, I

succeeded every time. This time I did as usual. I had a look at the menu and asked for a dish of vanilla

ice cream. I thought it was safe. A place like this bar should have this kind of ice cream. But as soon as

Lisa heard me, she said, "Didn't you read the menu? There isn't any vanilla ice cream at all." After I heard

this, my face turned red. And I had to tell them the truth. "Dyslexia is quite common, Betty. My friend's

daughter had this problem four years ago, but she is better now," Lisa's mother said to me. Then she

passed me a business card and said, "Go to see this doctor! Believe me! He can help you." I am better

now. I understand that sometimes it isn't the thing itself but what we have done that makes us embarrassed. I have learned to face my problems. I won't escape (逃避) from them anymore.

根据短文内容,选择正确答案。

1. What problem did Betty have when it was her turn to order?

A. She couldn't read the words on the menu.

B. She thought ice cream in the bar was too expensive.

C. She didn't know what kind of ice cream was delicious.

D. The menu was written in English, but she wasn't good at it.

2. How did Betty usually order food when she had meals with her friends in restaurants?

A. She ordered what she liked.

B. She ordered common food.

C. She ordered something delicious.

D. She ordered cheap food.

3. What did Betty mean by saying "I thought it was safe"?

A. She thought vanilla ice cream was cheap.

B. She thought the bar would sell vanilla ice cream.

C. She thought vanilla ice cream tasted delicious.

D. She thought eating vanilla ice cream was good for her health.

4. What did Lisa's mother do when Betty told the truth?

A. She criticized Betty.

B. She advised Betty to forget her problem.

C. She encouraged Betty to go to see a doctor.

D. She asked Betty to choose another kind of ice cream.

5. The writer wrote this story to tell us ______.

A. not to eat too much ice cream

B. not to worry about illness

C. to go to see a doctor regularly

D. to learn to face problems bravely

题型:选择题

修改下面的一个病句

他那身汗渍的劳动布单帽和半新的家做黄布褂子都早已湿透了。

题型:选择题

如图所示,电动机牵引一根原来静止的、长l=1 m、质量m=0.l kg、电阻R=1Ω的导体棒MN,导体棒靠在处于磁感应强度B=1 T、竖直放置的框架上。当导体棒上升高度h=3.8m时获得稳定速度,导体产生的热量为2J。电动机牵引棒时,电压表、电流表的读数分别为7 V、1A。电动机内阻r=1Ω,不计框架电阻及一切摩擦,取g=10 m/s2。求:

(1)棒获得多大的稳定速度?

(2)棒从静止达到稳定速度所需要的时间。

题型:选择题

最早形成的牙本质是

A.髓周牙本质

B.球间牙本质

C.透明牙本质

D.管间牙本质

E.罩牙本质

题型:选择题

最可能的诊断是

A.子宫颈息肉
B.子宫颈结核
C.子宫颈癌
D.子宫内膜异位症
E.宫颈绒癌

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