SAT Practice 7 Flashcards
reprieve
hoãn lại
esteem
sự tôn trọng , kính mến
sincerity
sự chân thành
Puerto Rico is an island in the Caribbean Sea. Indigenous people there started raising guinea pigs about 1,700 years ago. Guinea pigs had originally been domesticated much earlier in both Colombia and Peru. So were guinea pigs brought to Puerto Rico from Colombia or from Peru? Ancient Caribbean trade routes connected Puerto Rico with Colombia but not with Peru. Therefore, guinea pigs in Puerto Rico probably came from Colombia and descended from Colombian guinea pigs.
Question 12 Answers
Prompt for question12
Which finding, if true, would most directly weaken the underlined claim?
A.
Ancient guinea pigs in Puerto Rico were genetically less similar to ancient guinea pigs in Colombia than to ancient guinea pigs in Peru.
B.
Guinea pigs are common in ancient Puerto Rican art, especially in pottery.
C.
Modern breeds of guinea pigs don’t look like images of guinea pigs in ancient art from Puerto Rico, Colombia, and Peru.
D.
The guinea pig population of ancient Colombia was much larger than the guinea pig population of ancient Peru.
A
C sai do đối tượng là Columbia vs Peru ; not ancient vs present
When a given industry—water and electricity are two well-known examples—carries high infrastructural start-up costs and other barriers that discourage competition, ______blank of just one or two suppliers per municipality. Such industries are known as natural monopolies.
Question 20 Answers
Prompt for question20
Which choice completes the text so that it conforms to the conventions of Standard English?
A.
these often consist
B.
they often consist
C.
it often consists
D.
this often consists
C
rectify
sửa đổi
haphazard
random
demarcated from
được phân định từ
conflated with
được gộp chung với
desultory
rời rạc
spurious
giả mạo
notional
khái niệm ( only hypothesis )
coalescent
hợp nhất
dismantle
tháo dỡ , phá hủy , vứt đi
Early Earth is thought to have been characterized by a stagnant lid tectonic regime, in which the upper lithosphere (the outer rocky layer) was essentially immobile and there was no interaction between the lithosphere and the underlying mantle. Researchers investigated the timing of the transition from a stagnant lid regime to a tectonic plate regime, in which the lithosphere is fractured into dynamic plates that in turn allow lithospheric and mantle material to mix. Examining chemical data from lithospheric and mantle-derived rocks ranging from 285 million to 3.8 billion years old, the researchers dated the transition to 3.2 billion years ago.
Question 8 Answers
Prompt for question8
Which finding, if true, would most directly support the researchers’ conclusion?
A.
Among rocks known to be older than 3.2 billion years, significantly more are mantle derived than lithospheric, but the opposite is true for the rocks younger than 3.2 billion years.
B.
Mantle-derived rocks older than 3.2 billion years show significantly more compositional diversity than lithospheric rocks older than 3.2 billion years do.
C.
There is a positive correlation between the age of lithospheric rocks and their chemical similarity to mantle-derived rocks, and that correlation increases significantly in strength at around 3.2 billion years old.
D.
Mantle-derived rocks younger than 3.2 billion years contain some material that is not found in older mantle-derived rocks but is found in older and contemporaneous lithospheric rocks.
D
C sai do nghe chả lquan lắm
tally
đếm
Almost all works of fiction contain references to the progression of time, including the time of day when events in a story take place. In a 2020 study, Allen Kim, Charuta Pethe, and Steven Skiena claim that an observable pattern in such references reflects a shift in human behavior prompted by the spread of electric lighting in the late nineteenth century. The researchers drew this conclusion from an analysis of more than 50,000 novels spanning many centuries and cultures, using software to recognize and tally both specific time references—that is, clock phrases, such as 7 a.m. or 2:30 p.m.—and implied ones, such as mentions of meals typically associated with a particular time of day.
Question 8 Answers
Prompt for question8
Which finding from the study, if true, would most directly support the researchers’ conclusion?
A.
Novels published after the year 1800 include the clock phrase 10 a.m. less often than novels published before the year 1800 do.
B.
Novels published after 1880 contain significantly more references to activities occurring after 10 p.m. than do novels from earlier periods.
C.
Among novels published in the nineteenth century, implied time references become steadily more common than clock phrases as publication dates approach 1900.
D.
The time references of noon (12 p.m.) and midnight (12 a.m.) are used with roughly the same frequency in the novels.
B
“promted by…in late 19th century” => B
C sai vì không có sự so sánh giữa time phrase và clock phrase
Compliment
Lời khen
