Test d'entraînement PSAT
Les questions du test restent en anglais.
Voici un échantillon gratuit de 15 questions dans le style du PSAT/NMSQT numérique. Il mélange des questions Reading and Writing sur les mots en contexte, la structure du texte, l'usage des preuves, les transitions et la grammaire, et des questions Math sur l'algèbre, les maths avancées, l'analyse de données et la géométrie, avec des questions à choix multiple, des questions à réponses multiples et des textes à trous. Réponds aux 15 questions, puis regarde ton score et lis l'explication de chaque question.
A team of ecologists expected the restored wetland to fill with familiar species within a single season. Instead, the pace of recovery proved ______: five years in, only a third of the plant species catalogued before the site was drained had come back. Which choice completes the text with the most logical and precise word?
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Les 15 questions en un coup d'œil
Tu préfères lire avant de jouer ? Toutes les questions de l'échantillon sont listées ci-dessous. Les réponses et les explications restent repliées tant que tu ne les ouvres pas.
1. A team of ecologists expected the restored wetland to fill with familiar species within a single season. Instead, the pace of recovery proved ______: five years in, only a third of the plant species catalogued before the site was drained had come back. Which choice completes the text with the most logical and precise word?
- A. immediate
- B. gradual
- C. erratic
- D. predictable
Voir la réponse et l'explication
Réponse : B. gradual
The second sentence contrasts a fast expectation with a slow result, so the blank needs a word meaning slow. Erratic would mean irregular rather than slow, and the text describes steady partial progress, not an unstable pattern.
2. In the 1930s a small group of highway engineers argued that concrete roads should be poured in short slabs separated by regular joints. Most of the profession, which preferred long continuous pours, ignored the idea. Nearly every concrete highway built today uses short slabs and joints. Which choice best describes the overall structure of the text?
- A. It presents a proposal, notes that the proposal was dismissed, and then reports that it later became standard practice.
- B. It describes a problem and then lists several competing solutions that engineers have proposed for it.
- C. It compares the careers of two groups of engineers and explains why one group earned more recognition.
- D. It defines a technical term and then gives several examples of the term being used incorrectly.
Voir la réponse et l'explication
Réponse : A. It presents a proposal, notes that the proposal was dismissed, and then reports that it later became standard practice.
Text structure questions ask what the sentences do, not what they are about, and here the three sentences move from proposal to rejection to acceptance. No competing solutions are listed and no term is defined, so those options describe a text that was never written.
3. A student club claimed that a new protected bike lane on Third Street had made cycling there safer. A researcher counted reported collisions involving cyclists on Third Street for the two years before the lane opened and the two years after. Which finding, if true, would most directly support the club's claim?
- A. Reported collisions involving cyclists on Third Street fell by half after the lane opened.
- B. The number of cyclists riding on Third Street rose sharply after the lane opened.
- C. Drivers surveyed said they felt more confident driving on Third Street after the lane opened.
- D. Collisions fell by half on a nearby street that never received a bike lane.
Voir la réponse et l'explication
Réponse : A. Reported collisions involving cyclists on Third Street fell by half after the lane opened.
The claim is about safety, so the supporting evidence has to be about harm, and fewer collisions on that street is the only option that measures it. More riders measures popularity, driver confidence is an opinion, and a matching drop on a street with no bike lane would actually weaken the claim by pointing to some other cause.
4. A city measured air quality at four sites for one year. The two sites beside the highway recorded higher average particulate levels than the two sites in residential neighborhoods, and particulate levels at all four sites were highest during the winter months. Which statements are supported by the data as described?
Coche toutes les bonnes réponses.
- A. Average particulate levels were higher at the highway sites than at the residential sites.
- B. Particulate levels changed with the season at every site that was measured.
- C. Highway traffic was the only source of particulates anywhere in the city.
- D. Winter readings were the highest of the year at all four sites.
- E. Residential neighborhoods in other cities would show the same yearly pattern.
Voir la réponse et l'explication
Réponse : A. Average particulate levels were higher at the highway sites than at the residential sites., B. Particulate levels changed with the season at every site that was measured., D. Winter readings were the highest of the year at all four sites.
A supported statement only restates what the data actually shows, and here that is a highway versus residential difference plus a winter peak at every site. The other two options go past the data: one names a single cause the measurements cannot establish, and the other generalizes to cities that were never studied.
5. Which of the following sentences are punctuated correctly?
Coche toutes les bonnes réponses.
- A. Because the storm knocked out power, the museum closed early.
- B. The museum closed early, the storm had knocked out power.
- C. The storm knocked out power; the museum closed early.
- D. The museum, which closed early on Friday, reopened on Saturday.
- E. The museum closed early on Friday and, reopened on Saturday.
Voir la réponse et l'explication
Réponse : A. Because the storm knocked out power, the museum closed early., C. The storm knocked out power; the museum closed early., D. The museum, which closed early on Friday, reopened on Saturday.
A comma alone cannot join two complete sentences, which is why the second option is a comma splice and the semicolon version is fine. The fourth option is correct because a nonessential clause takes a comma on both sides, and the last option puts a comma between a conjunction and the verb it introduces, which splits the sentence for no reason.
6. Choose the transition that fits.
Sea otters eat large numbers of sea urchins, and sea urchins graze on kelp. _____, kelp forests have grown back along stretches of coast where otters have returned.
Options pour le trou 1 : However, Therefore, Nevertheless, In contrast
Voir la réponse et l'explication
Réponse : Therefore
The first sentence sets up a chain of cause and effect, and the second sentence states its result, so the blank needs a transition that signals a consequence. However, nevertheless and in contrast all signal a reversal, and nothing in the second sentence contradicts the first.
7. If 3(x - 4) = 2x + 5, what is the value of x?
- A. 7
- B. 11
- C. 17
- D. 21
Voir la réponse et l'explication
Réponse : C. 17
Distribute first to get 3x - 12 = 2x + 5, subtract 2x from both sides to get x - 12 = 5, then add 12 to get x = 17. Checking is quick and worth the seconds: 3(17 - 4) = 39 and 2(17) + 5 = 39.
8. A tank holds 120 gallons of water and drains at a constant rate of 8 gallons per minute. Which equation gives the number of gallons g remaining after m minutes?
- A. g = 120 + 8m
- B. g = 120 - 8m
- C. g = 8m - 120
- D. g = 8(120 - m)
Voir la réponse et l'explication
Réponse : B. g = 120 - 8m
In a linear model the starting amount is the constant and the constant rate is the coefficient of the variable, and draining makes that rate negative. A quick sanity check confirms it: at m = 0 the tank holds 120 gallons, and at m = 15 it holds 120 - 120 = 0 gallons.
9. A researcher randomly selected 200 students from a high school of 1,400 students and found that 60 percent of the students surveyed take the bus to school. Which conclusions are appropriate?
Coche toutes les bonnes réponses.
- A. About 840 students at this high school take the bus.
- B. The result can reasonably be generalized to all students at this high school.
- C. The result can reasonably be generalized to all high school students in the country.
- D. Exactly 120 of the students surveyed take the bus.
- E. Taking the bus causes students to arrive at school on time more often.
Voir la réponse et l'explication
Réponse : A. About 840 students at this high school take the bus., B. The result can reasonably be generalized to all students at this high school., D. Exactly 120 of the students surveyed take the bus.
A random sample supports estimates about the population it was drawn from, so 60 percent of 1,400 gives roughly 840 bus riders at this school, and 60 percent of the 200 surveyed is exactly 120 students. The sample says nothing about other schools, and a survey with no comparison and no experiment cannot show that one thing causes another.
10. Complete the sentence.
A jacket originally priced at 80 dollars is on sale for 25 percent off. The sale price is _____ dollars.
Options pour le trou 1 : 20, 55, 60, 75
Voir la réponse et l'explication
Réponse : 60
Taking 25 percent off leaves 75 percent of the price, so multiply once: 0.75 times 80 equals 60. The trap answer is 20, which is the discount itself rather than what you pay.
11. What are the solutions to x squared minus 5x minus 14 = 0?
- A. x = -7 and x = 2
- B. x = -2 and x = 7
- C. x = -14 and x = 1
- D. x = 2 and x = 7
Voir la réponse et l'explication
Réponse : B. x = -2 and x = 7
Look for two numbers that multiply to -14 and add to -5, which are -7 and 2, so the equation factors as (x - 7)(x + 2) = 0. Setting each factor to zero gives x = 7 and x = -2, and both check out: 49 - 35 - 14 = 0 and 4 + 10 - 14 = 0.
12. A colony of 400 bacteria doubles in size every 3 hours. Which function gives the population P after t hours?
- A. P(t) = 400 times 2 to the power of 3t
- B. P(t) = 400 times 2 to the power of t/3
- C. P(t) = 400 times 3 to the power of t/2
- D. P(t) = 400 + 2t/3
Voir la réponse et l'explication
Réponse : B. P(t) = 400 times 2 to the power of t/3
In an exponential model the base is the growth factor and the exponent counts how many growth periods have passed, so t hours contain t/3 doubling periods. Test it at t = 3: the exponent is 1 and the population is 800, which is one doubling. The first option multiplies the exponent by 3 instead of dividing by it, so at t = 3 it would give 400 times 2 to the ninth, or 204,800.
13. Complete the sentence.
In a right triangle, one of the two acute angles measures 35 degrees. The other acute angle measures _____ degrees.
Options pour le trou 1 : 45, 55, 65, 145
Voir la réponse et l'explication
Réponse : 55
The three angles of any triangle add to 180 degrees, and the right angle already uses 90 of them, so the two acute angles must add to 90. That makes the missing angle 90 minus 35, or 55 degrees.
14. A circle has a circumference of 12 pi. What is the area of the circle?
- A. 6 pi
- B. 12 pi
- C. 36 pi
- D. 144 pi
Voir la réponse et l'explication
Réponse : C. 36 pi
Circumference is 2 pi r, so 2 pi r = 12 pi gives a radius of 6. Area is pi r squared, which is pi times 36, or 36 pi, and the reference sheet inside the testing app lists both formulas if you blank on them.
15. In right triangle ABC, the right angle is at C, the hypotenuse AB has length 13, and side BC has length 5. What is the value of sin A?
- A. 5/13
- B. 12/13
- C. 5/12
- D. 13/5
Voir la réponse et l'explication
Réponse : A. 5/13
Sine is the side opposite the angle divided by the hypotenuse, and the side opposite angle A is BC, which gives 5/13. Note that 12/13 is cos A and 5/12 is tan A, since the third side works out to 12 by the Pythagorean theorem.
Ce que contient vraiment le PSAT/NMSQT numérique
Le PSAT/NMSQT se passe sur ordinateur ou sur tablette dans l'application Bluebook du College Board, pas sur papier. Il a deux sections. Reading and Writing te donne 54 questions en 64 minutes, et Math te donne 44 questions en 70 minutes, soit environ 2 heures 14 minutes de test plus une pause entre les deux sections. Les scores totaux vont de 320 à 1520.
Chaque section est découpée en deux modules, et le test est adaptatif au niveau de la section. Ta performance sur le premier module décide si le deuxième module de cette section sera fait de questions plus difficiles ou plus faciles, donc un deuxième module qui te paraît facile n'est pas automatiquement une mauvaise nouvelle, et un module qui te paraît brutal est souvent le signe que le premier s'est bien passé. Les questions de Reading and Writing ont chacune leur propre court texte, en général entre 25 et 150 mots, et elles sont regroupées par domaine : les mots en contexte et la structure du texte, l'usage des preuves et les inférences, les transitions et la révision rhétorique, et les conventions de l'anglais standard. Math couvre l'algèbre, les maths avancées, la résolution de problèmes et l'analyse de données, et la géométrie et la trigonométrie. Environ un quart des questions de maths te demandent de saisir ta propre réponse au lieu d'en choisir une, la calculatrice est autorisée sur toute la section de maths, une feuille de formules est intégrée à l'application, et une mauvaise réponse n'est pas pénalisée, alors ne laisse jamais une question vide.
Certaines choses varient et méritent d'être vérifiées auprès de ton établissement. Cette famille compte trois tests : le PSAT 8/9, le PSAT 10 et le PSAT/NMSQT. Seul le PSAT/NMSQT passé en eleventh grade peut qualifier un élève pour le National Merit, donc le même test passé en tenth grade n'est qu'un entraînement. Les établissements choisissent leur propre date de test à l'intérieur des fenêtres proposées par le College Board, et les seuils de Selection Index utilisés pour le National Merit sont fixés séparément par État et bougent d'une année à l'autre, donc un chiffre lu sur un forum peut concerner le mauvais État ou la mauvaise année.
Comment utiliser cet échantillon
Ces 15 questions reprennent le mélange de contenu du vrai test, pas sa longueur ni son comportement. Cinq questions couvrent les domaines de Reading and Writing et dix couvrent les quatre domaines de maths. Cet échantillon n'est pas adaptatif, donc chaque question que tu vois est la même que celle que tout le monde voit, et un quiz court ne peut pas te donner un score sur 1520.
Fais-le d'une traite, sans notes. Sur le vrai test, le rythme revient à un peu plus d'une minute par question de Reading and Writing et un peu plus d'une minute et demie par question de maths, alors essaie de t'y tenir à peu près ici. Ensuite, lis l'explication de chaque question, y compris celles que tu as réussies, parce qu'une bonne réponse au hasard et une bonne réponse solide se ressemblent sur un écran de score.
Révise par domaine plutôt que par question. Si tu as raté la question de transition et la question de ponctuation, la suite utile est une séance sur les limites de phrase et les mots de liaison, pas l'apprentissage par cœur de ces deux items. Pour les maths, refais sur une feuille blanche chaque problème que tu as raté avant de relire la solution. Lire une correction donne l'impression d'apprendre et ne l'est presque jamais.
Comment StudyPDF crée des tests complets à partir de tes propres documents
Quinze questions peuvent te dire quels domaines sont fragiles. Elles ne suffisent pas à te rendre prêt, et une banque de questions générique n'a aucune idée des chapitres que ton cours a réellement couverts ni des formules que tu oublies sans arrêt.
StudyPDF part de ton matériel à la place. Tu importes ton livre de préparation, tes notes de cours ou les diapos de ton enseignant, et Bo, l'agent de révision, crée des tests d'entraînement complets à partir de ces pages précises. Chaque question est ancrée dans ton matériel et chaque explication renvoie à l'endroit d'où vient la réponse, tu peux donc vérifier la source quand quelque chose te semble bizarre. Tu peux générer de nouveaux tests aussi souvent que tu veux, les concentrer sur un seul domaine comme les fonctions du second degré ou les transitions, et suivre les thèmes que tu rates sans arrêt.
Tu n'as pas besoin d'un document pour commencer. Tu peux aussi simplement nommer un thème, par exemple les problèmes de maths du PSAT ou les règles de la virgule, et Bo construira un test d'entraînement dessus en partant de zéro. Commencer est gratuit.
Rédigé par l'équipe StudyPDF. Mis à jour le 2026-08-19.