It is easier to float in the ocean than it is to float in a swimming pool. Do you know why?
Ocean water is full of salt— and salt water can hold up more weigh than fresh water. See for yourself!
You Will Need:
● 3 cups of warm water
● Measuring cup (量杯)
● Wide-mouthed jar
● Salt
● Spoon
● Raw (生的)potato
You Will Do:
1. Pour 1.5 cups of warm water into the jar.
2. Add 1/3 cup of salt.
3. Stir(搅拌) until the salt is completely dissolved.
4. Add another 1.5 cups of water. Pour it slowly over the back of the spoon into the jar so that the two liquid will not mix together.
5. Gently place the potato into the jar. Do not drop it.
What Will Happen:
The potato will sink— but only halfway!
Why?
Salt water is heavier than fresh water, so it will stay on the bottom. The fresh water will remain on top.
The potato is heavier than the fresh water, but it is lighter than the salt water. That is why the potato will sink halfway down.
1.In the experiment, what should you do right after you pour the water over the spoon?
A．Add the salt to the water. B．Stir the salt into the water.
C．Place the potato in the jar. D．Pour warm water into thejar.
2.In Step 4 of the experiment, why do you pour the water over the spoon “slowly”?
A．It is easier to see what you are doing.
B．It pushes the fresh water to the bottom.
C．It will keep the water from coming out.
D．It will keep the liquids from mixing together.
3.In which step of the experiment do you add the salt?
A．Step 1 B．Step 2 C．Step 3 D．Step 4
4.What does the underlined word “gently” mean?
A．Carefully B．Quickly C．Secretly D．Silently
Tuesday the twelfth was my birthday. I 16 a day of cake and presents 17__ it turned into a day of mystery(神秘). Someone sent a bottle with a letter and a treasure map 18 . It said there was a treasure of over 20 million dollars. I didn’t know if it was a trick(恶作剧) or if I should 19 it. If it was 20 , it would be the best present I had ever got. I decided to 21 . Two of my friends came and we rented a truck. 22 , I thought about turning back twice during this trip, but I didn’t think it was a 23 decision for me to make. I 24 to give this trip twice the effort(努力) I had been putting in. This would take all my trust in order for me to find the 25 .
“The map says you have to turn when you see a large stone with a red circle,” said one of them.
“What do we do after the turn?” I asked 26 .
“It says we should see a tree. We are 27 to turn 20 meters north of it and dig.
We got there and dug. We had 28 at first digging but we got better and worked very 29 . My trousers were dirty but I kept digging 30 I hit something. It was a large metal box. We 31 the lock and looked inside. There was a letter. It read:
“The lesson you have learned will be very 32 . If you put as much 33 in anything you do as you did in finding the 34 , you will have found the key to making over 20 million dollars.”
This was a trick from my parents. I thought I would never forget this 35 birthday present.
1. A．expected B．accepted C．passed D．planned
2. A．or B．but C．and D．so
3. A．above B．away C．inside D．nearby
4. A．trust B．forget C．refuse D．share
5. A．common B．easy C．interesting D．real
6. A．choose B．try C．ask D．think
7. A．Luckily B．Finally C．Probably D．Actually
8. A．wise B．big C．different D．quick
9. A．hated B．failed C．needed D．remembered
10. A．pleasure B．truth C．help D．aim
11. A．gratefully B．sadly C．angrily D．seriously
12. A．allowed B．required C．forced D．encouraged
13. A．training B．experience C．trouble D．fun
14. A．quickly B．badly C．tiredly D．carefully
15. A．since B．if C．because D．until
16. A．repaired B．opened C．changed D．cleaned
17. A．valuable B．necessary C．satisfying D．painful
18. A．time B．money C．health D．energy
19. A．bottle B．map C．letter D．tree
20. A．pretty B．perfect C．special D．expensive
假设你叫李华，你在报纸上看到一则广告招聘临时服务员，请你根据下面的提示写一封求职信。内容包括：
1. 表示感兴趣；
2. 情况说明：个人简介（高二学生；17岁；擅长电脑）；去年暑假期间（7-8月）打过工；具有合作精神；
3. 希望得到回复。
注意：
1.信的开头语已经给出，不计入总词数；
2.可根据内容要点适当发挥，但不要逐条翻译；
3.词数：100左右。
Dear Sir or Madam,
_____________________________________________
Yours sincerely,
Li Hua
假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的一下作文。文中共有10处语言错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（^），并在其下面写出该加的词。
删除：把多余的词用斜线（\）划掉。
注意：1. 每处错误及其修改均仅限一词；
2. 只允许修改10处，多者（从第11处起）不计分。
If you are learned English, it is not enough only to keep in mind the rule of grammar. Try to read stories in English and speaking in English wherever you can. When you have learned to use the language, you are sure not fail in the test. A few days before exam, you should go to bed early. Don’t stay up late at night study. Before you understand the exactly meaning of each question, we should not pick up your pen to write. When you have finished your paper, to be sure to read over your answers, correct mistakes you could see and make sure that you haven’t missed anything.
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项多余选项。
It’s not news that we spend more time than ever texting and online.1 Yes, that’s right: a 2010 study shows that more teens are reading good old-fashioned, ink-on-paper books.
Reading is a good way to discover the next big thing and to learn a little more about yourself while you’re at it.2 Here are some tips.
Start with your interests
Reading on your own isn’t like reading for school. You can pick something that’s all about your interests, whether it’s ancient martial arts, computers, or fashion design.
Reading the blurbs(简介)
The reviews and quotes on the back and inside covers of many books are called “blurbs”. 3if you find a book you really like, take a minute to read the quotes(if there are any) and see which authors praised the book. Often, they’ll have similar styles and you might find you like books by those authors too.
Ask an expert
4 Explain your interests--- rock stars, sports teams, historical events, humors, whatever you’re into—and any writers you like, and your librarian can point you toward books that you’ll love.
Finally, you’ll probably enjoy what you’re reading a lot more if you find a quiet place and make time for the book.5 You can put on some good music(ideally without lyrics), get yourself some tea and a comfy spot, and let yourself be carried away by the book.
You’ll see that time does fly when you are reading something you love!
A．Join a group with your friends and people you trust.
B．But do you know how to pick a book you’ll really like?
C．But did you know that we also spend more time reading?
D．Your local library can hook you up with a whole lot of great book ideas.
E. What was your mother’s favorite book when she was your age or your dad’s?
F. We all multitask, but most reading is best enjoyed when you can concentrate and focus on it.
G. They give you an idea of what the book is about, and can also help you pick future books too.
12月31日上午，第一中学在校礼堂里举办了元旦联欢会。在联欢会上，师生们同台演出。同学们表演了唱歌，跳舞，古典乐器演奏等，老师们则表演了一个幽默小品。假定你是校英语报的记者，请按照下列要点用英语写一篇100-120词的新闻报道。
1. 时间，地点，人物，活动；
2. 现场反应；
3. 观众简评；
注意：报道的标题已经给出（不计词数）
参考词汇：礼堂 auditorium 幽默小品a witty skit
No. 1 High School Celebrated the New Year
----------------------------------------------------------------------------
