U1 Teenage Life

teenage

teenager

ballet

volunteer

debate

prefer

prefer...to...

content

movement

greenhouse

clean up

suitable

suitable for

actually

challenge

title

topic

freshman

confusing

confuse

confused

fluent

graduate

recommend

sign up (for sth)

advanced

advance

literature

extra-curricular

extra

obviously

quit

responsible

responsibility

be responsible for

solution

schedule

editor

plate

adventure

youth

survival

expert

behaviour

generation

attract

be attracted to

focus

focus on

addicted

addict

addicted to

adult

本单元有66个单词。

Sentence 02:

Only by  increasing the number of doctors by 50 percent can the patients be treated properly in this hospital.

只有将医生的人数增加到50%，病人们才能在这家医院得到充分的治疗。

本句的主干是can the patients be treated properly。“only+状语" 放在句首时，句子要部分倒装，by increasing the number of doctors by 50 percent 是方式状语； can是谓语中的情态动词，因倒装装置，正常语序应该是the patients can be treated properly in this hospital.