阅读理解
FreeRice.com is a non-profit website run by the United Nations World Food Program (UNWFP). It
aims to provide education to everyone for free and help end world hunger. Join us and have fun with our
vocabulary game. For each vocabulary word you get right, we donate free rice through UNWFP to those hungry people.
How do you play the vocabulary game?
Click on the answer that is closest in meaning to the word. If you get it right, you get a harder word.
If wrong, you get an easier word. For each word you get right, we donate 20 grains of rice to UNWFP.
How does the vocabulary game help you?
This game may make you smarter. While learning new vocabulary, it can help you:
★Present your ideas better
★Write better papers, e-mails and business letters
★Speak more accurately and influentially
★Read faster because you understand better
★Get better grades in high school and college
★Perform better at job interviews
★Be more effective and successful at your job
After you have done FreeRice for a couple of days, you may notice a phenomenon. Words that you
have never consciously used before will begin to pop into your head while you are speaking or writing.
You will feel yourself using and knowing more words.
How does the FreeRice vocabulary program work?
FreeRice has a database containing thousands of words at different levels of difficulty. There are
words proper for people just learning English and words that will challenge the most learned professors.
In between are thousands of words for students, business people, doctors, truck drivers…
everyone!
FreeRice adjusts to your level of vocabulary. It starts by giving you words at different levels of difficulty and then, based on how you do, designs a proper starting level for you. When you get a word wrong,
you go to an easier level. When you get three words in a row right, you go to a harder level. There are 60
levels in all, but it is rare for people to get above Level 50.
Sign up now and you will have fun as well as help end world hunger.
1. According to the passage, the purpose of the vocabulary game is to ______.
A. combine English learning with helping hungry people
B. make it popular in English-speaking countries
C. encourage people to produce more rice
D. provide English learning for poor areas
2. Playing the vocabulary game enables you to ______.
A. develop some new ideas
B. increase chances of job interview
C. be admitted to a university
D. perform better in a speech competition
3. People of different vocabulary levels can play the game because ______.
A. it is free of charge
B. it offers fair chances to everyone
C. it changes levels with their performance
D. it meets the needs of people in different fields
中和另一份溶液消耗盐酸的体积为
，则
和
的关系是__________ 。
和
的关系是__________ 。