第二節(jié) 閱讀下面短文，在空白處填入1個適當?shù)膯卧~或括號內(nèi)單詞的正確形式。
Have you ever heard the term "dark ride" and wondered （1）

what

what

it meant？How about "flat ride"？Let's explore some of the more common （2）

types

types

（type） of rides.
    A "dark ride" is an industry term for any amusement park or theme park ride that uses vehicles to send passengers into an indoor environment and through（3）

a

a

series of scenes.Ride vehicles take many forms including cars on a track，trackless vehicles and boats （4）

that/which

that/which

float in a channel of water.
    A "flat ride" refers to attractions at amusement parks，carnivals，fairs and theme parks that （5）

typically

typically

（typical）spin around.
    They usually include a circular platform and（6）

are placed

are placed

（place） on the ground.The term is used to refer to a large number of rides.（7）

Depending

Depending

（depend） on their speed and other features，they may or may not be considered thrill rides.Generally， "kiddie rides" are intended（8）

for

for

young riders which are thrilling.
    A "motion simulator ride" uses seats that move with point-of-view media （9）

to provide

to provide

（provide）viewers with the illusion（錯覺）that they are moving and physically taking part in the action.Most motion simulator rides are presented in theaters of （10）

various

various

（vary） sizes.