在你离开之前，父母告诉你应该按时吃药。
Before you left, your parents told that you'd better _______________on time.
九年级英语完成句子简单题
在你离开之前，父母告诉你应该按时吃药。
Before you left, your parents told that you'd better _______________on time.
九年级英语完成句子简单题查看答案及解析
Your parents might have told you that you'd go blind from reading in the dark, but you could make up for it by eating a lot of carrots.This is just one of the wrong ideas you may have heard of.Here are scientific explanations for three mistakes people often make about our eyes
Can eating carrots improve your eyesight(视力)?
Carrots are rich in Vitamin A, which is essential for our eyes.Vitamin A helps people to see in low light conditions.However, eating more carrots doesn’t help you see better.A certain number of carrots will help, but a large number of carrots will not make you get rid of(摆脱) your glasses.
If your parents have bad eyesight, will you have bad eyesight, too?
Myopia(近视) can be inherited(经遗传得到) from parents.A study found that if both parents have myopia, there is a 33 to 60 percent chance that the child has.For children who have one parent with myopia, the chance is 23 to 40 percent, and it is down to 6 to 15 percent for kids with non-myopia parents.So no matter how bad your parents’ eyesight is, you will have a chance of having good eyesight.
Is it true that people who are color-blind can't see colors?
Color blindness doesn’t mean that someone can’t see colors at all.It means that some has difficulty seeing differences in certain colors, usually green and red or blue and yellow.Color blindness is usually a condition caused by not having cone cells(视锥细胞) or having the cells that don't work.There are different levels of color blindness. Some people cannot tell the differences between colors when light isn’t bright, while others have difficulty in any light.
1.Which of the following is the right idea about eating carrots?
A.Eating carrots doesn't help people see better.
B.People need to eat as many carrots as possible.
C.A certain number of carrots are enough for eyes.
D.Only people who have bad eyesight need to eat carrots.
2.The underlined word “essential” in the passage means “__________”in Chinese.
A.难以获取的 B.稍有影响的 C.极其罕见的 D.必不可少的
3.What can we learn according to the passage?
A.Children may inherit myopia from their parents.
B.Kids with non-myopia parents won't have myopia.
C.A kid has a 50% chance of having myopia if his or her father has myopia.
D.Kids with short-sighted parents won't have good eyesight.
4.What can we know about color blindness from the passage?
A.Having no cone well may cause color blindness.
B.People who are color-blind cannot see colors at all.
C.Those who can't tell green from red are not really color-blind.
D.Most people who are color-blind can only see black and white.
5.What's the best title for the passage?
A.Advice on staying away form myopia.
B.Reasons for bad eyesight and color blindness.
C.Explanations for some wrong ideas about eyes.
D.Medical information about improving your eyesight.
九年级英语阅读单选中等难度题查看答案及解析
I __________ eaten the cupcake before you told me that it was for your sister.
A.had already B.have already C.already D.would have
九年级英语单选题简单题查看答案及解析
当你去拜访朋友，进入他家之前，你应该先脱鞋。
When you visit a friend, you should ________ ________ your shoes before entering his home.
九年级英语完成句子中等难度题查看答案及解析
My parents had always shouted at each other before I told them I didn’t like that and that kept me a lot. It was an amazing that it worked and their relationship became better. I am so happy about that.
A. wasting B. repeating C. bugging D. hugging
九年级英语单选题中等难度题查看答案及解析
－Are your parents angry with you about your English?
－Oh, of them is angry. They just told me to get better grades next time.
A. none B. both C. neither D. all
九年级英语单项填空中等难度题查看答案及解析
根据短文内容及所给提示，在文中的空白处填写一个正确的单词。
Can you climb trees? Maybe your parents ever told you, “Don't climb trees. It's 1. (danger)．” But Xiamen University is going to have a new class: Tree-climbing.
Zhu Chongshi, the president of Xiamen University, once visited Cornell University in New York, and he was surprised2. the course there.
In Treeclimbing class, the teachers do not just let the students3. only with their hands. They teach the 4. (safe) skills like those used in rock-climbing. Students wear special caps and clothes to protect 5. (them). And they use ropes so that they can't fall 6. and get hurt. The class is very useful. Students are 7. (encourage) to learn the skills, like swimming in and after class by the teacher. In a time of disaster such as floods, earthquake, etc., such knowledge may make a 8. (different) between life and death.
No classroom subject could ever give them these skills. Students should find and develop their own inborn(与生俱来的) skills and talents. An allknowing teacher should no longer see the child as an empty cup and only pour knowledge 9. (direct) into it.
I 10. climbing trees will arouse(激发) up the potential(潜能) in many students.
九年级英语语法填空中等难度题查看答案及解析
The books on the left shelf ______ quite interesting. You could read them to your kid before bedtime.
A. is B. are C. look D. sounds
九年级英语单项填空简单题查看答案及解析
--Did you see Tom at the party?
--No, Mary told me that he by the time I got there.
A. left B. was leaving C. had left D. has left
九年级英语单项填空中等难度题查看答案及解析
1.今天谁迟到了？
Who today?
2.我需要一张纸。
I need a paper.
3.你越努力，收获越多。
you work,the more you will gain.
4.我认为按时吃药是很必要的。
I think it necessary to on time.
5.不要担心你的英语，王先生会帮助你的。
Don't be your English. Mr. Wang will help you.
九年级英语翻译中等难度题查看答案及解析