Unit15We’retryingtosavethemanatees
Itis________(suit)forthisweather
解析:besuitablefor适合于
答案:suitable2
Thepaperismade________grass
from解析:纸是由草制成的,看不出原材料
Thereare________manypeoplethatitisverycrowded
too解析:so与such可以与that连用,意思为“如此……以至于……”,而当名词前出现many,much,few,little时要用so
Thestuffusedto________(call)trash
解析:这些材料过去常被叫做垃圾
明显是被动语态,而不定式的被动语态是to+be+v
答案:becalled技能知识1
—Doyoulikethekangaroos
—Yes,theyare_________
playfullB
politelyC
spareD
aquatic2
Mostofusthinkthemanateeis________
aggressiveB
suitableC
gentled
Themost_______animalsareelephants
beautifullyB
enormousC
smallD
public4
Thefishlivers________
materialB
onlandC
underwaterD
vegetation5
Someofthecheetahsareaggressiveand_______
comfortableB
endangeredC
mysteriousD
spotted有效信息