The government manages to affect the level of aggregate demand through and（ ）monetary policy． A．commerc ial B．fiscal C．sluggish D．industrial

下列选项中，属于形容词后缀的是？ A: -ate B: -ial C: -nent D: -ment

Fill in the blanks based on your knowledge of the suffixes -al, -ial, -ical, and -tial. mathematics n. 数学 →______ adj. 数学方面的

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构词学习 Suffix -ance; Suffix -al; Prefix e- The suffix -ance can combine with verbs to form nouns which refer to the action, process, or state indicated by the verb. Examples Words learned Add -ance New words formed guide à guidance resist à resistance appear à appearance Add -ance, to or remove them from the following words to form new words. Words learned New words formed accept 1)____________ attend 2)____________ assist 3)____________ The suffix-al combines with nouns and verbs to form adjectives. Adjectives formed in this way describe something that is connected with the thing referred to by the original noun or verb. some times -ial is used instead of -al. Words learned Add-al New words formed person à personal music à musical face à facial memory à memorial Add -al to or remove them from the following words to form new words. Words learned New words formed continue 4)____________ emotional 5)____________ industry 6)____________ part 7)____________ Prefix ex-,e-,ef-,ec- 前缀ex-是很重要的前缀，它来源于拉丁介词ex,意为out或out of，即表示“向外”、“分离”的倾向。作为原生词缀与拉丁介词根结合时，ex-有两个异体e-和ef-。其中，ex-用在元音字母和c,h,p,q,s,t前面；ef-只出现在f之前；e-则可以出现在b,d,g,j,l,m,n,r,v等之前。值得注意的是，ex-又可以作为派生前缀，与表示身份或职业的名词相结合，表示former （以前的，前任的）的意思。这时ex-没有异体，而且往往要带连字符。 Match the words with the give explanations 选项：emit; evoke; enumerate;expend 8）____________ vt. count a list of articles naming them one by one 9）____________ vt. call forth or summon a spirit, etc; draw forth or elicit a particular mental image reaction 10）____________ vt. give off．send or send out; signal; issue paper money． 11）____________ vt.spend; use up Suffix -ance; Suffix -al; Prefix e- 的选词成句练习 Fill in the blanks with the newly-formed words in activity above. Change the form where necessary. Each word can be used only once. 12. If you have difficulty finding a particular book, please ask one of the librarians for __________ 13. Few people knew that the famous writer was largely self-taught through broad reading and___________at public lectures. 14. Our program aims to help high-school graduates to find the best colleges for them and gain___________to the college of their choice. 15. The ___________ tick of the clock got on my nerves, and I found it hard to fall asleep. 16.Your responsibility for the failure of the plan is only___________. Your partner should also take responsibility. 17.Some___________chemicals and food additives (添加剂) are known to increase cancer risk. 18.The teacher _________ the pupil's mistakes before punishing him 19.That song _________ pleasant high school memories for me. 20.Smoke detectors _________ a warning sound when the battery is low. 21.About 28% of the library's annual budget is_________ on new acquisitions.