Standard 3

FILL IN THE BLANKS: - 1   Ostrich   and  Emus  are flightless birds.       2  The shaft of a feather is made up of a very hard material called  keratin      3     Pointed  wings indicate a fast flier .    4  Feathers are held together in place by a hollow tube called    Shaft      or     Rachis      5  The three types of feathers are-    Body feathers        down feathers                     flight feathers    6.   Shor t   and   broad   winged birds can fly low.       ANSWER THE FOLLOWING QUESTIONS :- 1.        What is keratin ? Ans.   Feathers are held together in place by a hollow tube called the shaft or rachis. The shaft is made of a very hard material called keratin. 2.        Explain the three types of feathers of birds . Ans.    Contour (body)  feathers : Ø    These are small feathers which covers the wings, the body and the tail. Ø     It gives a sleek shape to the body which helps in flying. Down feathers : Ø    These feathers are

 Irregular Verbs 1.   go- went 2.   bring – brought 3.   think- thought 4.   do- did 5.   eat – ate 6.   see – saw 7.   tell – told 8.   know – knew 9.   fall – fell 10. cut- cut 11. break - broke 12. shake – shook 13. lay – laid 14. make – made 15. choose – chose 16. leap – leapt 17. read – read 18. light – lit 19. have/has – had 20. throw – threw 21. ride – rode 22. come – came 23. buy – bought 24. hear – heard 25. run – ran Q-1 Rewrite the sentences in the simple past tense. 1.   The wind blows furiously.   A- The wind  blew  furiously. 2.   The boy stands on the burning deck. A- The boy  stood  on the burning deck. 3.    She sings very well indeed.       A- She  sang  very well indeed. 4.      He feels fresh after a good night’s sleep. A- He  felt  fresh after a good night’s sleep. 5.      The boy throws the ball.       The boy threw the ball. Q-2 Fill in the blanks with is, am or are