Be ______．The ice is thin．You must skate ______．
A.care；carefully B.careful；carefully
C.carefully；carefully D.careful；careful
九年级英语单选题中等难度题
Be ______．The ice is thin．You must skate ______．
A.care；carefully B.careful；carefully
C.carefully；carefully D.careful；careful
九年级英语单选题中等难度题查看答案及解析
The ice was too thin for them _____.
A． to skate on it B． skating on it
C． to skate on D． skating on
九年级英语单项填空中等难度题查看答案及解析
The ice was too thin for us ________.
A.to skate on it B.skating on it
C.to skate on D.skating on
九年级英语单选题中等难度题查看答案及解析
We all find ________ dangerous to skate on the thin ice .
A.this B.it C.that D.\
九年级英语单选题中等难度题查看答案及解析
We all find ________dangerous to skate on the thin ice.
A. this B. it C. that D./
九年级英语单项填空中等难度题查看答案及解析
Lab work is fun but you must be careful. Listen carefully when your teacher reads and explains the rules before your first lab lesson.
| LAB RULES | |
| Throughout the lessons | * Do not enter the science lab without the teacher's permission(允许). * No food or drinks are to be allowed in the science lab. |
| Before the Experiment | * Read all instructions carefully before every experiment(实验). * Prepare all apparatus(仪器)and put them in right places so that you will not knock them over while doing the experiment. |
| During the Experiment | * If you are unsure of how to use any apparatus or how to operate, ask your teacher for help. * Never smell or taste chemicals unless your teacher gives permission. |
| After the Experiment | * Wash all apparatus after use and return them to the places where they were. * Throw waste materials into proper waste baskets. |
| First Aid | * Report all accidents to your teacher immediately. * If you spill any chemicals onto your body or clothing, wash with plenty of water and report to your teacher. |
1.You must know the LAB RULES ______ the first lab lessons.
A. before B. since C. during D.after
2.It is necessary for you to ______ before every experiment.
A. read all instructions carefully B. take enough food and drinks
C. smell chemicals immediately D. talk with your classmates.
3.If you are not sure of how to use any apparatus, ______.
A. read the rules carefully B. try them again and again
C. ask your teacher for help D. return all apparatus to the places where they were
4.The underlined word “spill” means ______.
A. 照射 B. 伤害 C.摔下 D.溅出
5.When you are in the science lab, you mustn’t ______.
A. be careful in order to prevent injury B. listen carefully when your teacher explains the rules
C. taste chemicals without the teacher’s permission D. throw waste materials into proper waste baskets
九年级英语阅读理解中等难度题查看答案及解析
_____ you read the sentences , _____ mistakes you’ll make.
A. More carefully, fewer
B. The more carefully, the less
C. The more careful , the fewer
D. The more carefully, the fewer
九年级英语单项填空中等难度题查看答案及解析
_____ you read the sentences , _____ mistakes you’ll make.
A. More carefully, fewer B. The more carefully, the less
C. The more careful , the fewer D. The more carefully, the fewer
九年级英语单项填空中等难度题查看答案及解析
Laboratory work is your chance to learn science firsthand. It can be fun but you must be careful to prevent injury. Listen closely when your teacher reads and explains the rules before your first lab lesson.
LABORATORYRULES
Throughout the lesson
·Do not enter the science lab without the teacher’s permission.·No food or drinks are to be alowed in the science lab.
Before the Experiment
·Read al instructions carefuly before every experiment.
·Prepare al apparatus（仪器）and arrange them so that you wil not knock them over while doing the experiment.
During the Experiment
·If you are unsure of how to use any apparatus or how to operate, ask your teacher for help.·Never smel or taste chemicals unless your teacher gives permission.
After the Experiment
·Wash al apparatus after use and return them to the places where they were.
·Throw waste materials in proper waste baskets. First Aid
·Report al accidents to your teacher immediately.
·If you spil（ 溅 出 ）any chemicals onto your body or clothing, wash with plenty of water and report to your teacher.
1. Your teacher wil probably tel you the rules above _____ the first lab lesson.
A. before B. since C. during D. after
2. Before every experiment, you should _____.
A. taste the chemicals first
B. clean al the apparatus
C. read al instructions carefuly
D. report al the accidents to the teacher
3. When you are not sure how to use al apparatus, _____.
A. try them on your own
B. read the rules carefuly
C. ask your teacher for help
d. put them back
4. It is clear that you can _____.
A. bring food into the lab
B. enter the lab anytime
C. smel chemicals as you like
D. learn science directly in the lab
5. If you get chemicals on the clothing, you can find ways to solve it in the part _____.
A. Before the Experiment
B. First Aid
C. During the Experiment
D. After the Experiment
九年级英语阅读理解中等难度题查看答案及解析
____you do your homework, the______ mistakes you’ll make.
A. The more careful, less B. The more carefully, fewer
C. The most careful, less D. The most carefully, fewest
九年级英语单项填空中等难度题查看答案及解析