1. vocabulary: TOEFL requires a high vocabulary. Junior high school students can improve their vocabulary by memorizing words, reading original English books and listening to English songs.
2. Listening: The TOEFL listening test mainly examines students' ability to understand and master English pronunciation, intonation and speed. Junior high school students can improve their listening by listening to English news, watching English movies and attending English corner.
3. Oral English: TOEFL oral English test mainly examines students' oral expression ability. Junior high school students can improve their oral English by imitating the original English sound, following English essays and participating in English speech contests.
4. Reading: TOEFL reading test mainly examines students' ability to understand English articles. Junior high school students can improve their reading level by reading original English books, newspapers and magazines.
5. Writing: TOEFL writing test mainly examines students' mastery of English writing ability. Junior high school students can improve their writing level by writing English diaries and compositions.
In addition, junior high school students should pay attention to the following points when preparing for TOEFL:
1. Make a reasonable study plan and arrange the time reasonably to ensure that each part has enough review time.
2. Do more simulation questions and real questions, and be familiar with test questions and answering skills.
3. Pay attention to accumulation, read more, listen more, speak more and write more, and constantly improve your comprehensive English ability.