题目内容
（请给出正确答案）
A、It costs too much to attend a college or university.
B、College helps students earn more money.
C、All high school graduates ought to go to college.
D、It's time to look at the value of college education.
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| 阅读理解。 |
| These are instructions for making invisible ink using baking soda. Difficulty: Easy Time required: A few minutes What you need: Baking soda Paper Water Light bulb Paintbrush Measuring cup Purple grape juice Here's how: There are at least two methods of using baking soda as invisible ink. Mix equal amounts of water and baking soda. Use a paintbrush to write a message onto white paper, using the baking soda solution (溶液) as "ink". Allow the ink to dry. One way to read the message is to hold the paper up to a heat source, such as a light bulb. The baking soda will cause the writing in the paper to turn brown. The second way to read the message is to paint over the paper with purple grape juice. The message will appear in a different color. Tips: If you are using the heating method, avoid igniting (点燃) the paper. Baking soda and grape juice react with each other in an acid-base (酸碱) reaction, producing a color change in the paper. Grape juice concentrate (浓缩物) results in a more visible color change than regular grape juice. |
| 1. ______ is not needed for making invisible ink. |
| A. Baking soda B. Paper C. Water D. Ink |
| 2. What's the function of the paintbrush？ |
| A. To draw a picture. B. To write a message onto the white paper. C. To allow the"ink" to appear. D. To help the"ink" dry. |
| 3. Why will the message appear in a different color in the second way to read the massage？ |
| A. Because there is enough grape juice. B. Because baking soda reacts with grape juice. C. Because of the use of water. D. Because of the special paper. |
| 4. From the process, we can know that making invisible ink is ______. |
| A. very hard B. not difficult C. a little difficult D. not easy |
A、A. poor, rich
B、B. rich, poor
C、C. officials, farmers
D、D. men, women
A、More high school students go to college than before.
B、Nearly half of the high school students choose to go to college.
C、Few high school graduates end up selling shoes and driving taxis.
D、Many college students don't fit the pattern of college life.
A、There are very few job opportunities that require higher education.
B、Too many graduates want to help people and save the world.
C、A lot of graduates only want to do the jobs in the world-saving fields.
D、Too few students want to join the army or do a dead-end job.
A、Things are no longer the same as before.
B、People are constantly changing their ideas.
C、People look at things based on their own experiences.
D、College is not as educational as it was before.
A、Students sometimes waste too much time at college.
B、Students don't want to invest money at college.
C、Students are often unrealistic and unprepared.
D、Students will get more chances to find a job.
A、What they learned was educational rather than personal.
B、What they learned was more personal than educational.
C、What they learned was more relevant to curriculum.
D、What they learned had nothing to do with personal skills.
A、The labor market only wants people who graduated from a special field.
B、Companies would save money to hire people without a college degree.
C、Urban planners, editors, and college professors are not in demand.
D、The only available jobs are those that are not promising.
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