【正文】 difficulty is their limited English students lack English vocabulary, so they cannot understand the connotation of reading , if we want to understand the reading materials, we must have sufficient other words, sufficient vocabulary can help us have a good prehension of reading the junior high schools’ students have limited English vocabulary, which affect the prehension of reading ’s more, students don’t know how to build up their problem is students’ bad English reading junior high schools’ students don’t have a good habit of reading , students have a small amount of English only read the textbooks and do exercises, then they don’t read other English , most students have no interest in reading English , most students read the passage word by word, and they don’t understand the meaning of the passage as a rely on teacher’s translation and addition, many students have poor English reading students have not mastered basic English reading prehension , when students do some reading prehension, they frequently read the article first, and then read the title and the last part of the passage to find out the is not only a waste of time, but also there is no effect to read in this , a large number of students don’t pay enough attention to the topic read the article word by word and cannot logically understand the teachers should develop students’ reading skill gradually because it is remarkably crucial for students to improve reading to the reading problems in junior high schools’ students, we can see the present situation of reading teaching in English such a situation, is taskbased language teaching effective in improving students’ reading ability? This is the issue the１paper is intended to review Definition of a taskBefore we want to know taskbased language teaching, we should first know what the meaning of a task people have given a definition to a variety of definitions of a task can be found as follows: According to Long, a task refers to the all kinds of things people do in their daily life, at work and at task is that when you ask some other people what things they do and they will tell those things to they are not the applied linguists.(Chen Yajie 3)In Crookes’s opinion a task is that the work is along with a purpose, and it is acplished as a part of a course or work, or it is used to obtain the research gave a definition to a task, any kind of language behavior that has been organized carefully, it has specific goals, appropriate content, specific teaching process and a variety of different a task is considered as a series of work plan, whose overall goal is to promote the language learning, whether the practice is simple or the activity is plicated, such as solving the problem, make a decision through the group work.(Chen Yajie 6)According to Bygate ., a task is a kind of activity that is influenced by the teaching in short or long term, it needs the learners to pay attention to the meaning of the language and use the language to achieve the goal.(Chen Yajie 6)Willis thinks the task of language activities the learners use, they are not only to municate objections, but also to achieve a goal.(Chen Yajie 6)Prabhu thinks “[A task is] an activity which requires learners to arrive at an oute from given information through some process of thought, and which allowed teachers to control and regulate that process.”(Prahbu 24).Nunnan thinks “a task is a piece of classroom work that involves learners in prehending, manipulating, producing or interacting in the target language while their attention is focused on mobilizing their grammatical knowledge in order to express meaning, and in which the intention is to convey meaning rather than to manipulate task should also have a sense of pleteness, being able to stand alone as a municative act in its own right with a beginning, a middle and an end.”(Nunnan２8).Skehan thinks “a task is an activity in which 1)meaning is primary 2)learners are not given other people’s meaning to regurgitate 3)there is some sort of relationship to parable realworld activities 4)task pletion has some priority 5)the assessment of the task is terms of oute.”(Skehan 9).Ellis thinks a kind of work plan requires learners to deal with the language when they are using the language in real life in order to achieve an oute, and the evaluation of the results can see whether it conveys the correct or appropriate propositional , it needs learners to focus on the meaning of the language firstly and take advantage of their knowledge of the language, although the design of the task may lead them to choose a specific language form in task aims at using the language and this using may direct or indirect relate to the language use in real other language activities, a task can involve output and receptive skills, oral and written munication skills, as well as a variety of cognitive process.(Edwards amp。 Wllis 18)All the experts mentioned above had given their own definitions to a task on different example, Breen sees a task as a workplan, which have the overall purposes of facilitating language learning from the simple and brief exercise , Skehan described the five key characteristics of a my opinion, I think a task is that the teacher puts forward some requirements that you need to do some activities to acplish by using some task is that people do some things in order to achieve some goals and the activities carried out by people bee a necessity in the language Taskbased language teaching in readingTaskbased language teaching is a kind of effective approach which was first started and radically established since is a development of Communicative Language is first put forward by experts had given other definitions of taskbased language thought taskbased language teaching is an approach to the design of language course in which the point of departure is not an ordered list of linguistic items, but a collection of tasks.(Nunan193