【正确答案】正确答案：Tenses are one of the most difficult aspects for Chinese to master because of the non-inflected nature of the Chinese language In English, the different forms of the verb can tell us whether something is happening in the present or in the past. This information is technically termed as tense. The tense is shown by adding related morphemes at the end of the verb. So the learners can judge the tense easily by looking at the different verb forms. However, the Chinese verb form does not have a well defined past, present or future tense. In writing or in speaking, the Chinese verb in the sentence does not necessarily inform the reader or listener as to whether they are referring to the past, present or future. Therefore, Chinese often places prepositional, phrases, as well as conjunctive adverbs(e. g. Mandarin Chinese le, guo)that indicate time at the front of the sentence so as to inform the speaker or the reader of the appropriate tense. The different ways of expressing the tense cause Chinese learners of English tend to make mistakes in the marking of tense. When translating into English, Chinese writers sometimes forget that English has a well-defined past/present/future verb tense. Therefore, the unconscious tendency of placing several prepositional or other phrases that indicate time at the front of the sentence is often redundant or neglect using different tense form of verb. Another factor which contributes to the difficulties is the difference in the concept of time of Chinese as compared to native speakers of English. Different concepts of time of non-native speakers with those of native speakers contribute to their difficulties in learning the English tenses. As the learning of tenses, Chinese learners are faced with a totally new set of classification of time situations that have no counterpart in their own native language. So in teaching English tenses teachers have to explain English time attributes thoroughly rather than assuming L2 learners will understand them as long as they have acquired the rules. For example, past tense is used for situations which are less probable, or more remote. A lot of Chinese do not have this concept and teachers should spend time in clarifying this to them. Teachers can also allow learners to understand the meanings of the two broad types of English and Chinese tenses and their differences in teaching Chinese learners. Through the comparison of different ways of expressing tense, the teacher can provide the students a clear framework and then students will take special notice in u-sing Verb associated with tense.