2016年12月英語四級考試閲讀理解訓練題
四六級考試中,佔分最多的是聽力和閲讀部分,閲讀這部分可以通過多練習來提高做題速度。以下是yjbys網小編整理的關於2016年12月英語四級考試閲讀理解訓練題,供同學們備考。
練習一:
1、Courses with the numbers 800 or above are open only to graduate students. Certain courses, generally those devoted to introductory material, are numbered 400 for undergraduate students and 600 for graduate students. Courses designed for students seeking a professional degree carry a 500 number for undergraduate students and a 700 munber for graduate students.
A full-time graduate student is expected to take courses which total ten to sixteen credit hours. Students holding assistantships are expected to enroll for proportionately fewer hours. A part-time graduate student must register for a minimun of five credit hours.
1. In order to be eligible to enroll in Mechanical Engineering 850, a student must be ________.
a. a graduate student
b. a part-time student
c. a full-time student
d. an undergraduate student
2. If an undergraduate student uses the number 520 to register for an accounting course, what number would a graduate student probably use to register for the same course?
a. accounting 520
b. accounting 620
c. accounting 720
d. accounting 820
3. A student who register for eight credit hours is a ________.
a. full-time student
b. graduate student
c. part-time student
d. non-degree student
4. A graduate student may not ________
a. enroll in a course numbered 610
b. register for only one three-hour course
c. register for courses if he has an assistantship
d. enroll in an introductory course
答案:accb
練習二:
2、There is evidence that the usual variety of high blood pressure is, in part, a familiar disease. Since families have similar genes as well as similar environments, familiar diseases could be due to shared genetic influences, to shared environmental factors, or to both. For some years, the role of one environmental factor commonly shared by families, namely dietary salt (i. e., sodium chloride), has been studied at Brookhaven National Laboratory. These studies suggest that chromic excess salt ingestion can lead to high blood pressure in man and animals. Some individuals, however, and some rats consume large amounts of salt without developing high blood pressure. No matter how strictly all environmental factors were controlled in these experiments, some salt-fed animals never developed hypertension whereas a few rapidly developed very severe hypertension followed by early death. These marked variations were interpreted to result from differences in genetic constitution.
By mating is successive generations only those animals that failed to develop hypertension from salt ingestion, a resistant strain (the "R"Strain) has been evolved in which consumption of large quantities of salt fails to influence the blood pressure significantly. In contrast, by mating only animals that quickly develop hypertension from salt, a sensitive strain ("S" strain) has also been developed.
The availability of these tow strains permits investgations not heretofore possible. They provide a plausible laboratory model on which to investigate some clinical aspects of the human prototypes of hypertension. More important, there might be the possibility of developing methods by which genetic susceptibility of human beings to high blood pressure can be defined without waiting for its appearance. Radioactive sodium 22 was an important "tool" in working out the characteristics of the sodium chloride metabolism.
1. The study of the effects of salt on high blood pressure was carried out ________.
a. as members of the same family tend to use similar amounts of salt
b. to explore the long-term use of a sodium based substance
c. because it was proven that salt caused high blood pressure
d. because of the availability of chemically pure salt and its derivatives
2. The main difference between "S"and"R" rats is their ________.
a. need for sodium 22
b. rate of mating
c. reaction to salt
d. type of blood
3. We can infer from the article that sodium 22 can de used to ________.
a. control high blood pressure
b. cure high blood pressure caused by salt
c. tell the "S"rats from the"R" rats
d. determine what a sodium chloride metabolism is like
4. The most beneficial results of the research might be ________.
a. development of diets free of salt
b. an early cure for high blood pressure
c. control of genetic agents that cause high blood pressure
d. the early identification of potential high blood pressure victims
5. Which of the statements best relates the main idea of this article?
a. When salt is added rats and human beings react similarly.
b. The near future will see a cure for high blood pressure.
c. The medical field is desperately in need of research.
d. A tendency toward high blood pressure may be a hereditary factor.
答案:acddd
-
英語四級作文:乾渴的世界(A Thirsty World)
在平平淡淡的日常中,大家都接觸過作文吧,藉助作文可以宣泄心中的情感,調節自己的.心情。你寫作文時總是無從下筆?下面是小編收集整理的英語四級作文:乾渴的世界(AThirstyWorld),歡迎閲讀,希望大家能夠喜歡。theworldisnotonlyhungry,itisalsothirsty.thismaysoundstra...
-
2022年英語四級詞類語法講義
對於我們學生來説,就是要每一天每一刻都要做到:有目的有計劃積極主動不放過任何一個學習機會,爭分奪秒地學習,勤學好問,虛心學習,永不滿足。以下是小編為大家整理的英語四級詞類語法講義,歡迎閲讀,希望大家能夠喜歡。英語的詞通常分為十大類:1)名詞(noun,縮寫為n.)是人和...
-
2023年英語六級聽力備考建議
大學英語六級考試是由國家統一出題的,統一收費,統一組織考試,用來評定應試人英語能力的全國性的考試,每年各舉行兩次。下面是小編收集整理的2023年英語六級聽力備考建議,希望對大家有幫助!英語六級聽力備考建議1、加強聽寫的鍛鍊聽寫是提高聽力的有效途徑。建議找一...
-
2023年12月大學英語四級聽力試題練習
在現實的學習、工作中,我們會經常接觸並使用練習題,只有多做題,學習成績才能提上來。學習就是一個反覆反覆再反覆的過程,多做題。那麼一般好的習題都具備什麼特點呢?以下是小編為大家收集的2023年12月大學英語四級聽力試題練習,僅供參考,歡迎大家閲讀。12月大學英語四...