5. ―Listen!There (the bell;go) . Let's hurry. ―Oh,yes. Has the teacher come yet?
―Look!Here (he;come) .
科目:高中英語 來源: 題型:
4. -Have you heard about the recent election?
-Sure,it (be) the only thing on the news for the last three days.
查看答案和解析>>
科目:高中英語 來源: 題型:
4. What is troubling him is he has a large bill to pay at the end of this month.
查看答案和解析>>
科目:高中英語 來源: 題型:
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 weight than fresh water. See for yourself!You will need:
. 3 cups of warm water
. Measuring cup (跫杯)
. Wide-mouthed jar
. Sail
. 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 (攪拌) 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 liquids will not mix together.
5. Gently place the potato into the jar. Donot 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 only halfway down.
1. In the experiment,what should you do right after you pour the water over the spoon?
A. Add ihe salt to the water.
B. Stir the salt into the water.
C. Place the potato in the jar.
D. Pour warm water into the jar.
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.
5. What is the most important detail about salt water in this text?
A. You can make it yourself.
B. You can find it in the ocean.
C. It is heavier than fresh water.
D. A potato will sink in it.
查看答案和解析>>
科目:高中英語 來源: 題型:
5. You've just missed your , and you will have to wait for the next round.
查看答案和解析>>
科目:高中英語 來源: 題型:
10. The US is about the same size as Chirm,but its population is five times
(small) .
查看答案和解析>>
湖北省互聯(lián)網(wǎng)違法和不良信息舉報平臺 | 網(wǎng)上有害信息舉報專區(qū) | 電信詐騙舉報專區(qū) | 涉歷史虛無主義有害信息舉報專區(qū) | 涉企侵權(quán)舉報專區(qū)
違法和不良信息舉報電話:027-86699610 舉報郵箱:58377363@163.com