Learning another language isn't easy, but most people can learn a second language well if

Learning another language isn't easy, but most people can learn a second language well if they’re willing to put in the necessary time. Here are some practical suggestions for studying effectively, overcoming anxiety, and learning the grammar and skills necessary for success in foreign language classes.
Study every day
Language learning is cumulative: you cannot put it off until the weekend. Study one or two hours for every class hour if you want a good mark.
Distribute your study time in 15 to 30 minutes period throughout the day
Study a different task each time: vocabulary now, grammar next, etc. Get an overview during the first half hour: spend 10 minutes reviewing dialog, 10 minutes learning new vocabulary, 10 minutes learning new grammar... So you'll at least have looked at it all. About 80~of your study time should be spent on recitation or practice.
Attend and participate in every class—even if you aren't well prepared
Class time is your best opportunity to practice, learn the grammar and vocabulary outside of class in order to make full use of the class time. Spend a few minutes warming up before each class by speaking or reading the language.
Make yourself comfortable in the classroom
Get to know your classmates, so you'll feel you’re among friends. Visit your teacher during office hours to get aquainted(熟悉的)：explain your goals and fears about the course to your teacher.
Learn grammar if you don't already know it
Grammar is the skeleton(骨架) and the basic structure of a language, and you must learn it.
Practice for tests by doing what you'll have to do on the test
If the test will require you to write, then study by writing--including spelling and accents. If you're asked to listen, practice listening. Ask for practice questions and make up your own test questions. Try to invent changes on patterns and forms. Over learning is also required in tests preparation：study beyond the paints of recognition to mastery.
Develop a good attitude
Have a clear personal reason for taking the class. Set personal goals for what you want to learn. Leave perfectionism at the door; give yourself permission to make mistakes and learn from them.
16. What does the underlined word cumulative in Paragraph 2 probably mean?
A. process of gaining knowledge or skill by doing and seeing things
B. having to do with comparison
C. having ability to do what is needed
D. increasing in amount by one addition after another
17. A good learner is one who according to the passage.
A. never permits himself to make mistakes
B. can learn something from the mistakes he makes
C. follows the goals that other persons set for themselves
D. can get to know his classmates and doesn't take his teachers' advice
18. What would be the best title for the passage?
A. Tips on studying a foreign language.
B. Advice on how to learn grammar.
C. Suggestions for studying vocabulary effectively.
D. How to make yourself comfortable in the classroom.16---18 DBA

(答案→)16---18 DBA 解析：本文说明了学习一门语言并不是那么困难，文中作者提出了一些好的建议，看后，你会从中得到一些启发。16．D．猜词悟义题。从上下文看，下文的“不要把语言学习聚积在周末，每次学习一两个小时”表明该词的含义是D，不间断地每次学一点。17．B．细节理解题。本文最后一段说，“把完美主义留在门口，允许自己犯错误并从中学到知识”。18．A．主旨要义题。全文介绍语言学习的一些好办法，如每天学习不间断，每节课不拉下，积极参与课堂训练，培养好的学习态度等，因此本题选A作为全文的标题。

这个解释是对的