[主观题] 【辨认主题句】Choose the best topic sentence from the four options below, Write the
corresponding letter of your choice on the answer sheet.
A. Boston has been a leading American city in recent years.
B. Students are being required to take more academic courses.
C. Teachers' monthly salaries have risen to an average of 2,000.
D. The United States is making an effort to improve the quality of education.

1、[主观题]【重写句子】The cat ran away.Mary was not worried. The cat was trained to find his home.
(compound-complex sentence)

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2、[主观题]【辨认主题句】 Read the following paragraph and choose the best topic sentence from the four options
that follow. Write the corresponding letter of your choice on the answer sheet.
Scientists have previously assumed that zeortis s aqpinst disease-carrying insects, controlling
body temperature,and maintaining social unity. While numerous previous studies of the
phenomenon focused on one single assumption, a study led by Brenda Larison, a researcher in
UCLA,was the first to fully test a large set of assumptions against one another.Theresearchers examined zebras at 16 locations in Africa.On zebras in warmer climates,thestripes are bold and cover the entire body.On others—-particularly those in regions withcolder winters such as South Africa and Namibia--the stripes are fewer in number and arelighter and narrower. In some cases, the legs or other body parts have virtually no striping.
A. Regulating body temperature may be a key factor for zebras'striping.
B. Brenda Larison studied many zebras during her field work in Africa.
C. The location determines the amount and intensity of zebras'stripes.
D. One fascinating question about zebras is how they got their stripes.

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3、[主观题]【辨认主题句】Choose the best topic sentence from the four options below. Write the corresponding
letter of your choice on the answer sheet.
A.American adults aged 50 and older say reducing crime is one of the policy priorities.B. Seventy-seven percent of younger Americans prioritize protecting the environment.C. Both younger and older Americans place a much lower priority on climate change.D. The policy priorities of younger and older Americans differ in three key respects.

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4、[主观题]【修改句子】Helena's car being the only one that could carry all of our equipment to the
lab.

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5、[主观题]【重写句子】Efficient public transportation reduces traffic. It saves money on road construction. It lessens harm to the ozone layer. (parallel structure)

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