2. Grade two: Science (People's Education Edition), Chinese (People's Education Edition), Mathematics (People's Education Edition) and English (People's Education Edition).
3. Grade 3: Science (People's Education Edition), Chinese (People's Education Edition), Mathematics (People's Education Edition) and English (People's Education Edition, a new starting point, proficient and well informed).
4. Grade 4: Science (People's Education Edition), Chinese (People's Education Edition), Mathematics (People's Education Edition) and English (People's Education Edition, New Starting Point, Proficient, Informed and People's Education Edition)
5. Grade 5: Science (People's Education Edition), Chinese (People's Education Edition), Mathematics (People's Education Edition) and English (People's Education Edition, New Starting Point, Proficiency, People's Education Edition)
6. Grade 6: Science (People's Education Edition), Chinese (People's Education Edition), Mathematics (People's Education Edition) and English (People's Education Edition, New Starting Point, Proficiency, People's Education Edition)
(1) Find the composition of four simple planes and eight straight lines.
Plane refers to the plane on which the connecting line of any two points falls,