 鲜花( 0)  鸡蛋( 0)
|
ON THE MOVE# V- Q% C( c9 }9 E
' q* M% u" w* S1. People can travel on foot. But it takes a long time to get form place to place.
; ]% ]; P) z2 K' a+ H& _3 [2 U' [. m) ?; H
2. Machines help people travel more quickly and carry heavy loads
5 v9 h n0 E% Z6 T
2 ~6 t, f' B! R* @) J* ?3. A bicycle is machine. The faster you pedal, the faster you move.
8 Z8 c# b/ b# U) H( G8 n7 ~# o# h1 J' b* c: N% q
4. You do not need to pedal a motorcycle. It was an engine that makes wheel go around. Why it this person wearing a helmet?
0 s* V: @3 _* _5 U
7 R. G s$ S, G7 R5 H5. 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.
1 y" J* N5 M, N5 E3 r1 e+ W q8 D& `( ?- U
6. When lot of people want to go to the same place, they travel together on bus or coach. They can even travel by streetcar.
0 {0 f# s0 e+ s% V H( d
9 z8 f5 E- I. F* n' ?7. Cars, buses and coaches, vans and trucks all use roads. They give off fumes that pollute the air we breathe.8 O$ J, c3 `# ~' P8 K# I
$ A4 n0 M( `2 L: D" T8. Trains run on specially built railway tracks. Some train below ground.
+ I% N: o, w' T" I: s8 ^
! V3 U: f v! F0 e% }9. Sometimes we need to travel across water. Ferry boats have space for trucks, coaches, cars, and people. ( T% `$ Z5 N0 v2 B P/ x
' q2 _0 V) ~( H" @
10. Airplanes are machines that fly. A jumbo jet can carry more than 300 passengers a helicopter is also a flying machine.
1 ]$ u" @4 x! D% i
; \& ~( d! x& Y0 i* P. j11. The rocket and the space shuttle are also machines. The space shuttle carries astronauts into space and brings them safely back to earth.
4 p' s5 U7 u( D1 B$ @$ \% s! k/ O2 X9 J& `6 T2 a9 R0 t
12. Some people find it difficult to walk. What machine can help them?
4 h% x+ r4 a5 x! xAnswer: wheelchairs. |
|