以下是一些适合5年级唱的英文歌曲：

1. "Head, Shoulders, Knees and Toes" - The Cat in the Hat (Disney)

2. "The Wheels on the Bus" - Patty Cake (Bert Midler)

3. "If You're Happy and You Know It" - Pharrell Williams

4. "Happy Birthday" - Stevie Wonder

5. "Twinkle Twinkle Little Star" - Jane Taylor

6. "Row, Row, Row Your Boat" - Lois Lowry

7. "I'm a Little Teapot" - Louis Armstrong

8. "Old MacDonald Had a Farm" - Richard Scarry

9. "Baby Shark, Doo Doo Doo" - Pinkfong (Disney)

10. "The Hokey Pokey" - Red Hot Chili Peppers (Disney)

这些歌曲旋律简单易学，歌词也比较容易理解，非常适合小学生学唱。同时，这些歌曲也是经典的儿童歌曲，可以让孩子们在唱歌的同时也感受到音乐的魅力。