[0008] At present, the learning method for students to learn English preposition phrases is mainly based on rote memorization. Often a verb can be matched with many prepositions to express different meanings. For most students, it is very difficult to memorize vocabulary. The lack of vivid demonstrations in the test leads to poor memory and learning effects, and the phenomenon of losing points in the test. There are still many problems in the learning of English prepositional phrases, as follows:
[0009] 1. In the learning and memory of English prepositional phrases, most students use rote memorization, and the memory effect is not good. At present, there is no device to assist students in learning and memorizing prepositional phrases. In order to assist students in learning and memorizing English verb phrases, emergency Lack of an English preposition learning device;
[0010] 2. The traditional way of memorizing English verb phrases is to learn and memorize them through vocabulary books or textbooks. The learning is too boring. A large number of phrases are listed in front of you, lacking novelty, which cannot improve the interest of young people in learning English, resulting in low learning efficiency. high;
[0011] 3. In traditional English learning, when students memorize the verb phrases that match verbs and prepositions, they are all done by the students alone. There is no interactive learning between classmates. The learning process is very boring, which makes the learning and memory of verb phrases ineffective. ;
[0012] 4. When learning English verbs and prepositions, it often happens that one verb can be matched with multiple prepositions. For example, look can be matched with after, out, back, for, in, into, on, over, up, through, etc. Forming verb phrases, students sometimes miss certain collocations when sorting out. The verb phrases that memorize verbs and prepositions are not comprehensive enough. If the missed collocations appear in the test, it will cause the situation that the basic score cannot be obtained. occur;
[0013] 5. At present, in order to make it easier for students to memorize English verb phrases, students often use some cards printed with verb phrases, but the cards are easily damaged when they are repeatedly memorized and used, and they are inconvenient to store and easy to lose when not in use.
[0014] 6. Students use cards to memorize in the same way as using books to memorize, which is boring and cannot improve students' interest in learning and young people's desire to learn English;
[0015] 7. When students use cards or books to memorize verb phrases, the phrases and phrase notes are displayed in front of students at the same time. During the memorization process, if students need to check the memory effect, they need to cover the notes or phrases with their hands. You can still see before occlusion, most of which belong to instantaneous memory, and will be forgotten after a while, making the memory effect of English verb phrases poor;
[0020] In the process of learning English tenses, one usually learns one tense and one tense. In the process of learning, the teacher usually speaks and the students listen. However, it is easy to learn a tense and forget the tense learned before. Students do not have an inductive learning and memory, which often causes confusion among the tenses. Memorization takes a lot of time, and in daily practice and formal examinations, they make many mistakes when solving practical problems, resulting in ineffective learning of English tenses. Okay, so there are still many problems in English tense learning, as follows:
[0021] 1. In the current learning of English tenses, the learning of English tenses is divided into 16 tenses. The learning content is scattered and fragmented. The learning time interval is too long. It is easy for students to forget the previous learning content and cannot be systematized. In order to help students learn English systematically, there is an urgent need for a learning aid that allows students to have an overall grasp of English tense grammar;
[0022] 2. In the current English learning, when students are learning English tenses and grammar, many tenses in English are very similar. In the process of memorizing, it is easy for students to be confused, difficult to distinguish, and the memory effect is not good. Grammar related to English tenses poor learning effect;
[0023] 3. The current tense learning in English, the learning process of 16 tenses, the time span is very large, and it is easy for students to forget the content of the previous tenses when learning a new tense. Regular learning of the relevant knowledge of tenses leads to inaccurate learning and grasp of English tenses;
[0024] 4. In the current process of learning English tenses, most of the auxiliary devices for learning English tenses are devices similar to the time axis, which can only help students determine which tense the sentence pattern belongs to, and cannot improve students' mastery of English tense sentences Use ability, which has little learning aid effect on English tense learning;
[0025] 5. In the process of learning English tenses, in order to deepen students' understanding and memory of tenses, the basic sentence patterns of English tenses are usually printed on cards to help students learn and memorize. The learning process is boring and interesting, and students The interest in learning is not high, which is not conducive to improving the learning effect of English tense learning;
[0026] 6. Nowadays, when students memorize English tense-related grammar, they usually use books or notes taken by teachers when explaining, which are all rote memorization, without interactive learning, and the time required for memorization is too long, and the memory effect is not good it is good;
[0027] 7. When students memorize or contact grammar related to English tenses, they usually write while memorizing. The memory process uses a lot of paper. The used paper is different from the English notes that students take. They can be read repeatedly. Memory writing is used The finished paper is equivalent to waste paper and cannot be reused, resulting in waste, which does not conform to the current environmental protection concept
[0028] To sum up, for the two important parts of vocabulary learning and grammar learning in English learning, there is no English learning aid device that can solve all the above problems. In order to improve the learning efficiency and effect of students' English vocabulary and tense, research a The training device for assisting students in English vocabulary learning and tense grammar learning has certain social value and economic value