 鲜花( 0)  鸡蛋( 0)
|
ON THE MOVE
4 ^$ q& u* q! E5 `3 k2 i 6 |/ l8 e* c; M1 w5 V3 p J
1. People can travel on foot. But it takes a long time to get form place to place." v, |! `/ @/ V* ^
' k* q2 z8 l% I m! b) f5 V5 Y
2. Machines help people travel more quickly and carry heavy loads7 y+ o5 A' y" ~& O0 K4 G5 _0 }4 U
+ V' e0 N* O' Q. O# M3 ^3. A bicycle is machine. The faster you pedal, the faster you move.- [/ r4 }0 j# Q( V9 x% }! i; X! F
4 O( x3 t! T/ U Z4. You do not need to pedal a motorcycle. It was an engine that makes wheel go around. Why it this person wearing a helmet?
! n0 I( f: W' R8 ~) Z
* v% i% h. z) ^) d5. Cars have four wheels, and the passengers sit inside. Car can travel very fast. But when road are busy, a car trip can seem slow and boring. p5 ^% x5 t, x6 ~& b% {( e
! D, y# s# ]% V a6. When lot of people want to go to the same place, they travel together on bus or coach. They can even travel by streetcar. H' C- w7 Q1 T% b2 t
- u6 m5 ^0 ~4 e4 [
7. Cars, buses and coaches, vans and trucks all use roads. They give off fumes that pollute the air we breathe.
+ n* k3 e/ c/ n) j
/ Q g% M0 G& X8. Trains run on specially built railway tracks. Some train below ground.( e) [6 q; C! h9 L
2 |: Y& @+ n: H4 i' h9. Sometimes we need to travel across water. Ferry boats have space for trucks, coaches, cars, and people.
( ]& U- [1 U& K7 e' ~, G: ~2 x! ~3 C0 K/ H6 e" n
10. Airplanes are machines that fly. A jumbo jet can carry more than 300 passengers a helicopter is also a flying machine. 4 b3 B9 G b7 ?2 z. X
0 p' e' {7 ~0 s11. The rocket and the space shuttle are also machines. The space shuttle carries astronauts into space and brings them safely back to earth. 1 U; J9 P, P3 L. b6 h
7 F$ a x% b) x) p1 X+ B12. Some people find it difficult to walk. What machine can help them?
% }( u* L+ @/ ]$ P/ X' }2 `9 zAnswer: wheelchairs. |
|